diff options
Diffstat (limited to 'drivers/net/ena')
| -rw-r--r-- | drivers/net/ena/Makefile | 61 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_com.c | 2809 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_com.h | 1052 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_admin_defs.h | 1979 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_common_defs.h | 54 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_eth_io_defs.h | 1488 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_gen_info.h | 35 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_includes.h | 39 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_defs/ena_regs_defs.h | 135 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_eth_com.c | 508 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_eth_com.h | 153 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_plat.h | 53 | ||||
| -rw-r--r-- | drivers/net/ena/base/ena_plat_dpdk.h | 220 | ||||
| -rw-r--r-- | drivers/net/ena/ena_ethdev.c | 1455 | ||||
| -rw-r--r-- | drivers/net/ena/ena_ethdev.h | 160 | ||||
| -rw-r--r-- | drivers/net/ena/ena_logs.h | 70 | ||||
| -rw-r--r-- | drivers/net/ena/ena_platform.h | 59 | ||||
| -rw-r--r-- | drivers/net/ena/rte_pmd_ena_version.map | 4 |
18 files changed, 10334 insertions, 0 deletions
diff --git a/drivers/net/ena/Makefile b/drivers/net/ena/Makefile new file mode 100644 index 00000000..ac2b55dc --- /dev/null +++ b/drivers/net/ena/Makefile @@ -0,0 +1,61 @@ +# +# BSD LICENSE +# +# Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the name of copyright holder nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# + +include $(RTE_SDK)/mk/rte.vars.mk + +# +# library name +# +LIB = librte_pmd_ena.a +CFLAGS += $(WERROR_FLAGS) -O2 +INCLUDES :=-I$(SRCDIR) -I$(SRCDIR)/base/ena_defs -I$(SRCDIR)/base + +EXPORT_MAP := rte_pmd_ena_version.map +LIBABIVER := 1 + +VPATH += $(SRCDIR)/base +# +# all source are stored in SRCS-y +# +SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_ethdev.c +SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_com.c +SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_eth_com.c + +# this lib depends upon: +DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_eal lib/librte_ether +DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_mempool lib/librte_mbuf +DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_net lib/librte_malloc + +CFLAGS += $(INCLUDES) + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/drivers/net/ena/base/ena_com.c b/drivers/net/ena/base/ena_com.c new file mode 100644 index 00000000..a21a9513 --- /dev/null +++ b/drivers/net/ena/base/ena_com.c @@ -0,0 +1,2809 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "ena_com.h" + +/*****************************************************************************/ +/*****************************************************************************/ + +/* Timeout in micro-sec */ +#define ADMIN_CMD_TIMEOUT_US (1000000) + +#define ENA_ASYNC_QUEUE_DEPTH 4 +#define ENA_ADMIN_QUEUE_DEPTH 32 + +#define ENA_EXTENDED_STAT_GET_FUNCT(_funct_queue) (_funct_queue & 0xFFFF) +#define ENA_EXTENDED_STAT_GET_QUEUE(_funct_queue) (_funct_queue >> 16) + +#define MIN_ENA_VER (((ENA_COMMON_SPEC_VERSION_MAJOR) << \ + ENA_REGS_VERSION_MAJOR_VERSION_SHIFT) \ + | (ENA_COMMON_SPEC_VERSION_MINOR)) + +#define ENA_CTRL_MAJOR 0 +#define ENA_CTRL_MINOR 0 +#define ENA_CTRL_SUB_MINOR 1 + +#define MIN_ENA_CTRL_VER \ + (((ENA_CTRL_MAJOR) << \ + (ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT)) | \ + ((ENA_CTRL_MINOR) << \ + (ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT)) | \ + (ENA_CTRL_SUB_MINOR)) + +#define ENA_DMA_ADDR_TO_UINT32_LOW(x) ((u32)((u64)(x))) +#define ENA_DMA_ADDR_TO_UINT32_HIGH(x) ((u32)(((u64)(x)) >> 32)) + +#define ENA_MMIO_READ_TIMEOUT 0xFFFFFFFF + +static int ena_alloc_cnt; + +/*****************************************************************************/ +/*****************************************************************************/ +/*****************************************************************************/ + +enum ena_cmd_status { + ENA_CMD_SUBMITTED, + ENA_CMD_COMPLETED, + /* Abort - canceled by the driver */ + ENA_CMD_ABORTED, +}; + +struct ena_comp_ctx { + ena_wait_event_t wait_event; + struct ena_admin_acq_entry *user_cqe; + u32 comp_size; + enum ena_cmd_status status; + /* status from the device */ + u8 comp_status; + u8 cmd_opcode; + bool occupied; +}; + +static inline int ena_com_mem_addr_set(struct ena_com_dev *ena_dev, + struct ena_common_mem_addr *ena_addr, + dma_addr_t addr) +{ + if ((addr & GENMASK_ULL(ena_dev->dma_addr_bits - 1, 0)) != addr) { + ena_trc_err("dma address has more bits that the device supports\n"); + return ENA_COM_INVAL; + } + + ena_addr->mem_addr_low = (u32)addr; + ena_addr->mem_addr_high = + ((addr & GENMASK_ULL(ena_dev->dma_addr_bits - 1, 32)) >> 32); + + return 0; +} + +static int ena_com_admin_init_sq(struct ena_com_admin_queue *queue) +{ + ENA_MEM_ALLOC_COHERENT(queue->q_dmadev, + ADMIN_SQ_SIZE(queue->q_depth), + queue->sq.entries, + queue->sq.dma_addr, + queue->sq.mem_handle); + + if (!queue->sq.entries) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + queue->sq.head = 0; + queue->sq.tail = 0; + queue->sq.phase = 1; + + queue->sq.db_addr = NULL; + + return 0; +} + +static int ena_com_admin_init_cq(struct ena_com_admin_queue *queue) +{ + ENA_MEM_ALLOC_COHERENT(queue->q_dmadev, + ADMIN_CQ_SIZE(queue->q_depth), + queue->cq.entries, + queue->cq.dma_addr, + queue->cq.mem_handle); + + if (!queue->cq.entries) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + queue->cq.head = 0; + queue->cq.phase = 1; + + return 0; +} + +static int ena_com_admin_init_aenq(struct ena_com_dev *dev, + struct ena_aenq_handlers *aenq_handlers) +{ + u32 addr_low, addr_high, aenq_caps; + + dev->aenq.q_depth = ENA_ASYNC_QUEUE_DEPTH; + ENA_MEM_ALLOC_COHERENT(dev->dmadev, + ADMIN_AENQ_SIZE(dev->aenq.q_depth), + dev->aenq.entries, + dev->aenq.dma_addr, + dev->aenq.mem_handle); + + if (!dev->aenq.entries) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + dev->aenq.head = dev->aenq.q_depth; + dev->aenq.phase = 1; + + addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(dev->aenq.dma_addr); + addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(dev->aenq.dma_addr); + + ENA_REG_WRITE32(addr_low, (unsigned char *)dev->reg_bar + + ENA_REGS_AENQ_BASE_LO_OFF); + ENA_REG_WRITE32(addr_high, (unsigned char *)dev->reg_bar + + ENA_REGS_AENQ_BASE_HI_OFF); + + aenq_caps = 0; + aenq_caps |= dev->aenq.q_depth & ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK; + aenq_caps |= (sizeof(struct ena_admin_aenq_entry) << + ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT) & + ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK; + + ENA_REG_WRITE32(aenq_caps, (unsigned char *)dev->reg_bar + + ENA_REGS_AENQ_CAPS_OFF); + + if (unlikely(!aenq_handlers)) + ena_trc_err("aenq handlers pointer is NULL\n"); + + dev->aenq.aenq_handlers = aenq_handlers; + + return 0; +} + +static inline void comp_ctxt_release(struct ena_com_admin_queue *queue, + struct ena_comp_ctx *comp_ctx) +{ + comp_ctx->occupied = false; + ATOMIC32_DEC(&queue->outstanding_cmds); +} + +static struct ena_comp_ctx *get_comp_ctxt(struct ena_com_admin_queue *queue, + u16 command_id, bool capture) +{ + ENA_ASSERT(command_id < queue->q_depth, + "command id is larger than the queue size. cmd_id: %u queue size %d\n", + command_id, queue->q_depth); + + ENA_ASSERT(!(queue->comp_ctx[command_id].occupied && capture), + "Completion context is occupied"); + + if (capture) { + ATOMIC32_INC(&queue->outstanding_cmds); + queue->comp_ctx[command_id].occupied = true; + } + + return &queue->comp_ctx[command_id]; +} + +static struct ena_comp_ctx * +__ena_com_submit_admin_cmd(struct ena_com_admin_queue *admin_queue, + struct ena_admin_aq_entry *cmd, + size_t cmd_size_in_bytes, + struct ena_admin_acq_entry *comp, + size_t comp_size_in_bytes) +{ + struct ena_comp_ctx *comp_ctx; + u16 tail_masked, cmd_id; + u16 queue_size_mask; + u16 cnt; + + queue_size_mask = admin_queue->q_depth - 1; + + tail_masked = admin_queue->sq.tail & queue_size_mask; + + /* In case of queue FULL */ + cnt = admin_queue->sq.tail - admin_queue->sq.head; + if (cnt >= admin_queue->q_depth) { + ena_trc_dbg("admin queue is FULL (tail %d head %d depth: %d)\n", + admin_queue->sq.tail, + admin_queue->sq.head, + admin_queue->q_depth); + admin_queue->stats.out_of_space++; + return ERR_PTR(ENA_COM_NO_SPACE); + } + + cmd_id = admin_queue->curr_cmd_id; + + cmd->aq_common_descriptor.flags |= admin_queue->sq.phase & + ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK; + + cmd->aq_common_descriptor.command_id |= cmd_id & + ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK; + + comp_ctx = get_comp_ctxt(admin_queue, cmd_id, true); + + comp_ctx->status = ENA_CMD_SUBMITTED; + comp_ctx->comp_size = (u32)comp_size_in_bytes; + comp_ctx->user_cqe = comp; + comp_ctx->cmd_opcode = cmd->aq_common_descriptor.opcode; + + ENA_WAIT_EVENT_CLEAR(comp_ctx->wait_event); + + memcpy(&admin_queue->sq.entries[tail_masked], cmd, cmd_size_in_bytes); + + admin_queue->curr_cmd_id = (admin_queue->curr_cmd_id + 1) & + queue_size_mask; + + admin_queue->sq.tail++; + admin_queue->stats.submitted_cmd++; + + if (unlikely((admin_queue->sq.tail & queue_size_mask) == 0)) + admin_queue->sq.phase = !admin_queue->sq.phase; + + ENA_REG_WRITE32(admin_queue->sq.tail, admin_queue->sq.db_addr); + + return comp_ctx; +} + +static inline int ena_com_init_comp_ctxt(struct ena_com_admin_queue *queue) +{ + size_t size = queue->q_depth * sizeof(struct ena_comp_ctx); + struct ena_comp_ctx *comp_ctx; + u16 i; + + queue->comp_ctx = ENA_MEM_ALLOC(queue->q_dmadev, size); + if (unlikely(!queue->comp_ctx)) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + for (i = 0; i < queue->q_depth; i++) { + comp_ctx = get_comp_ctxt(queue, i, false); + ENA_WAIT_EVENT_INIT(comp_ctx->wait_event); + } + + return 0; +} + +static struct ena_comp_ctx * +ena_com_submit_admin_cmd(struct ena_com_admin_queue *admin_queue, + struct ena_admin_aq_entry *cmd, + size_t cmd_size_in_bytes, + struct ena_admin_acq_entry *comp, + size_t comp_size_in_bytes) +{ + unsigned long flags = 0; + struct ena_comp_ctx *comp_ctx; + + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + if (unlikely(!admin_queue->running_state)) { + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + return ERR_PTR(ENA_COM_NO_DEVICE); + } + comp_ctx = __ena_com_submit_admin_cmd(admin_queue, cmd, + cmd_size_in_bytes, + comp, + comp_size_in_bytes); + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + + return comp_ctx; +} + +static int ena_com_init_io_sq(struct ena_com_dev *ena_dev, + struct ena_com_io_sq *io_sq) +{ + size_t size; + + memset(&io_sq->desc_addr, 0x0, sizeof(struct ena_com_io_desc_addr)); + + io_sq->desc_entry_size = + (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) ? + sizeof(struct ena_eth_io_tx_desc) : + sizeof(struct ena_eth_io_rx_desc); + + size = io_sq->desc_entry_size * io_sq->q_depth; + + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + size, + io_sq->desc_addr.virt_addr, + io_sq->desc_addr.phys_addr, + io_sq->desc_addr.mem_handle); + else + io_sq->desc_addr.virt_addr = + ENA_MEM_ALLOC(ena_dev->dmadev, size); + + if (!io_sq->desc_addr.virt_addr) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + io_sq->tail = 0; + io_sq->next_to_comp = 0; + io_sq->phase = 1; + + return 0; +} + +static int ena_com_init_io_cq(struct ena_com_dev *ena_dev, + struct ena_com_io_cq *io_cq) +{ + size_t size; + + memset(&io_cq->cdesc_addr, 0x0, sizeof(struct ena_com_io_desc_addr)); + + /* Use the basic completion descriptor for Rx */ + io_cq->cdesc_entry_size_in_bytes = + (io_cq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) ? + sizeof(struct ena_eth_io_tx_cdesc) : + sizeof(struct ena_eth_io_rx_cdesc_base); + + size = io_cq->cdesc_entry_size_in_bytes * io_cq->q_depth; + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + size, + io_cq->cdesc_addr.virt_addr, + io_cq->cdesc_addr.phys_addr, + io_cq->cdesc_addr.mem_handle); + + if (!io_cq->cdesc_addr.virt_addr) { + ena_trc_err("memory allocation failed"); + return ENA_COM_NO_MEM; + } + + io_cq->phase = 1; + io_cq->head = 0; + + return 0; +} + +static void +ena_com_handle_single_admin_completion(struct ena_com_admin_queue *admin_queue, + struct ena_admin_acq_entry *cqe) +{ + struct ena_comp_ctx *comp_ctx; + u16 cmd_id; + + cmd_id = cqe->acq_common_descriptor.command & + ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK; + + comp_ctx = get_comp_ctxt(admin_queue, cmd_id, false); + + comp_ctx->status = ENA_CMD_COMPLETED; + comp_ctx->comp_status = cqe->acq_common_descriptor.status; + + if (comp_ctx->user_cqe) + memcpy(comp_ctx->user_cqe, (void *)cqe, comp_ctx->comp_size); + + if (!admin_queue->polling) + ENA_WAIT_EVENT_SIGNAL(comp_ctx->wait_event); +} + +static void +ena_com_handle_admin_completion(struct ena_com_admin_queue *admin_queue) +{ + struct ena_admin_acq_entry *cqe = NULL; + u16 comp_num = 0; + u16 head_masked; + u8 phase; + + head_masked = admin_queue->cq.head & (admin_queue->q_depth - 1); + phase = admin_queue->cq.phase; + + cqe = &admin_queue->cq.entries[head_masked]; + + /* Go over all the completions */ + while ((cqe->acq_common_descriptor.flags & + ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK) == phase) { + /* Do not read the rest of the completion entry before the + * phase bit was validated + */ + rmb(); + ena_com_handle_single_admin_completion(admin_queue, cqe); + + head_masked++; + comp_num++; + if (unlikely(head_masked == admin_queue->q_depth)) { + head_masked = 0; + phase = !phase; + } + + cqe = &admin_queue->cq.entries[head_masked]; + } + + admin_queue->cq.head += comp_num; + admin_queue->cq.phase = phase; + admin_queue->sq.head += comp_num; + admin_queue->stats.completed_cmd += comp_num; +} + +static int ena_com_comp_status_to_errno(u8 comp_status) +{ + if (unlikely(comp_status != 0)) + ena_trc_err("admin command failed[%u]\n", comp_status); + + if (unlikely(comp_status > ENA_ADMIN_UNKNOWN_ERROR)) + return ENA_COM_INVAL; + + switch (comp_status) { + case ENA_ADMIN_SUCCESS: + return 0; + case ENA_ADMIN_RESOURCE_ALLOCATION_FAILURE: + return ENA_COM_NO_MEM; + case ENA_ADMIN_UNSUPPORTED_OPCODE: + return ENA_COM_PERMISSION; + case ENA_ADMIN_BAD_OPCODE: + case ENA_ADMIN_MALFORMED_REQUEST: + case ENA_ADMIN_ILLEGAL_PARAMETER: + case ENA_ADMIN_UNKNOWN_ERROR: + return ENA_COM_INVAL; + } + + return 0; +} + +static int +ena_com_wait_and_process_admin_cq_polling( + struct ena_comp_ctx *comp_ctx, + struct ena_com_admin_queue *admin_queue) +{ + unsigned long flags = 0; + u64 start_time; + int ret; + + start_time = ENA_GET_SYSTEM_USECS(); + + while (comp_ctx->status == ENA_CMD_SUBMITTED) { + if ((ENA_GET_SYSTEM_USECS() - start_time) > + ADMIN_CMD_TIMEOUT_US) { + ena_trc_err("Wait for completion (polling) timeout\n"); + /* ENA didn't have any completion */ + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + admin_queue->stats.no_completion++; + admin_queue->running_state = false; + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + + ret = ENA_COM_TIMER_EXPIRED; + goto err; + } + + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + ena_com_handle_admin_completion(admin_queue); + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + } + + if (unlikely(comp_ctx->status == ENA_CMD_ABORTED)) { + ena_trc_err("Command was aborted\n"); + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + admin_queue->stats.aborted_cmd++; + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + ret = ENA_COM_NO_DEVICE; + goto err; + } + + ENA_ASSERT(comp_ctx->status == ENA_CMD_COMPLETED, + "Invalid comp status %d\n", comp_ctx->status); + + ret = ena_com_comp_status_to_errno(comp_ctx->comp_status); +err: + comp_ctxt_release(admin_queue, comp_ctx); + return ret; +} + +static int +ena_com_wait_and_process_admin_cq_interrupts( + struct ena_comp_ctx *comp_ctx, + struct ena_com_admin_queue *admin_queue) +{ + unsigned long flags = 0; + int ret = 0; + + ENA_WAIT_EVENT_WAIT(comp_ctx->wait_event, + ADMIN_CMD_TIMEOUT_US); + + /* In case the command wasn't completed find out the root cause. + * There might be 2 kinds of errors + * 1) No completion (timeout reached) + * 2) There is completion but the device didn't get any msi-x interrupt. + */ + if (unlikely(comp_ctx->status == ENA_CMD_SUBMITTED)) { + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + ena_com_handle_admin_completion(admin_queue); + admin_queue->stats.no_completion++; + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + + if (comp_ctx->status == ENA_CMD_COMPLETED) + ena_trc_err("The ena device have completion but the driver didn't receive any MSI-X interrupt (cmd %d)\n", + comp_ctx->cmd_opcode); + else + ena_trc_err("The ena device doesn't send any completion for the admin cmd %d status %d\n", + comp_ctx->cmd_opcode, comp_ctx->status); + + admin_queue->running_state = false; + ret = ENA_COM_TIMER_EXPIRED; + goto err; + } + + ret = ena_com_comp_status_to_errno(comp_ctx->comp_status); +err: + comp_ctxt_release(admin_queue, comp_ctx); + return ret; +} + +/* This method read the hardware device register through posting writes + * and waiting for response + * On timeout the function will return ENA_MMIO_READ_TIMEOUT + */ +static u32 ena_com_reg_bar_read32(struct ena_com_dev *ena_dev, u16 offset) +{ + struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read; + volatile struct ena_admin_ena_mmio_req_read_less_resp *read_resp = + mmio_read->read_resp; + u32 mmio_read_reg, ret; + unsigned long flags = 0; + int i; + + ENA_MIGHT_SLEEP(); + + /* If readless is disabled, perform regular read */ + if (!mmio_read->readless_supported) + return ENA_REG_READ32((unsigned char *)ena_dev->reg_bar + + offset); + + ENA_SPINLOCK_LOCK(mmio_read->lock, flags); + mmio_read->seq_num++; + + read_resp->req_id = mmio_read->seq_num + 0xDEAD; + mmio_read_reg = (offset << ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT) & + ENA_REGS_MMIO_REG_READ_REG_OFF_MASK; + mmio_read_reg |= mmio_read->seq_num & + ENA_REGS_MMIO_REG_READ_REQ_ID_MASK; + + /* make sure read_resp->req_id get updated before the hw can write + * there + */ + wmb(); + + ENA_REG_WRITE32(mmio_read_reg, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_MMIO_REG_READ_OFF); + + for (i = 0; i < ENA_REG_READ_TIMEOUT; i++) { + if (read_resp->req_id == mmio_read->seq_num) + break; + + ENA_UDELAY(1); + } + + if (unlikely(i == ENA_REG_READ_TIMEOUT)) { + ena_trc_err("reading reg failed for timeout. expected: req id[%hu] offset[%hu] actual: req id[%hu] offset[%hu]\n", + mmio_read->seq_num, + offset, + read_resp->req_id, + read_resp->reg_off); + ret = ENA_MMIO_READ_TIMEOUT; + goto err; + } + + ENA_ASSERT(read_resp->reg_off == offset, + "Invalid MMIO read return value"); + + ret = read_resp->reg_val; +err: + ENA_SPINLOCK_UNLOCK(mmio_read->lock, flags); + + return ret; +} + +/* There are two types to wait for completion. + * Polling mode - wait until the completion is available. + * Async mode - wait on wait queue until the completion is ready + * (or the timeout expired). + * It is expected that the IRQ called ena_com_handle_admin_completion + * to mark the completions. + */ +static int +ena_com_wait_and_process_admin_cq(struct ena_comp_ctx *comp_ctx, + struct ena_com_admin_queue *admin_queue) +{ + if (admin_queue->polling) + return ena_com_wait_and_process_admin_cq_polling(comp_ctx, + admin_queue); + + return ena_com_wait_and_process_admin_cq_interrupts(comp_ctx, + admin_queue); +} + +static int ena_com_destroy_io_sq(struct ena_com_dev *ena_dev, + struct ena_com_io_sq *io_sq) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_admin_aq_destroy_sq_cmd destroy_cmd; + struct ena_admin_acq_destroy_sq_resp_desc destroy_resp; + u8 direction; + int ret; + + memset(&destroy_cmd, 0x0, sizeof(struct ena_admin_aq_destroy_sq_cmd)); + + if (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) + direction = ENA_ADMIN_SQ_DIRECTION_TX; + else + direction = ENA_ADMIN_SQ_DIRECTION_RX; + + destroy_cmd.sq.sq_identity |= (direction << + ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT) & + ENA_ADMIN_SQ_SQ_DIRECTION_MASK; + + destroy_cmd.sq.sq_idx = io_sq->idx; + destroy_cmd.aq_common_descriptor.opcode = ENA_ADMIN_DESTROY_SQ; + + ret = ena_com_execute_admin_command( + admin_queue, + (struct ena_admin_aq_entry *)&destroy_cmd, + sizeof(destroy_cmd), + (struct ena_admin_acq_entry *)&destroy_resp, + sizeof(destroy_resp)); + + if (unlikely(ret && (ret != ENA_COM_NO_DEVICE))) + ena_trc_err("failed to destroy io sq error: %d\n", ret); + + return ret; +} + +static void ena_com_io_queue_free(struct ena_com_dev *ena_dev, + struct ena_com_io_sq *io_sq, + struct ena_com_io_cq *io_cq) +{ + size_t size; + + if (io_cq->cdesc_addr.virt_addr) { + size = io_cq->cdesc_entry_size_in_bytes * io_cq->q_depth; + + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + size, + io_cq->cdesc_addr.virt_addr, + io_cq->cdesc_addr.phys_addr, + io_cq->cdesc_addr.mem_handle); + + io_cq->cdesc_addr.virt_addr = NULL; + } + + if (io_sq->desc_addr.virt_addr) { + size = io_sq->desc_entry_size * io_sq->q_depth; + + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + size, + io_sq->desc_addr.virt_addr, + io_sq->desc_addr.phys_addr, + io_sq->desc_addr.mem_handle); + else + ENA_MEM_FREE(ena_dev->dmadev, + io_sq->desc_addr.virt_addr); + + io_sq->desc_addr.virt_addr = NULL; + } +} + +static int wait_for_reset_state(struct ena_com_dev *ena_dev, + u32 timeout, u16 exp_state) +{ + u32 val, i; + + for (i = 0; i < timeout; i++) { + val = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF); + + if (unlikely(val == ENA_MMIO_READ_TIMEOUT)) { + ena_trc_err("Reg read timeout occurred\n"); + return ENA_COM_TIMER_EXPIRED; + } + + if ((val & ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK) == + exp_state) + return 0; + + /* The resolution of the timeout is 100ms */ + ENA_MSLEEP(100); + } + + return ENA_COM_TIMER_EXPIRED; +} + +static bool +ena_com_check_supported_feature_id(struct ena_com_dev *ena_dev, + enum ena_admin_aq_feature_id feature_id) +{ + u32 feature_mask = 1 << feature_id; + + /* Device attributes is always supported */ + if ((feature_id != ENA_ADMIN_DEVICE_ATTRIBUTES) && + !(ena_dev->supported_features & feature_mask)) + return false; + + return true; +} + +static int ena_com_get_feature_ex(struct ena_com_dev *ena_dev, + struct ena_admin_get_feat_resp *get_resp, + enum ena_admin_aq_feature_id feature_id, + dma_addr_t control_buf_dma_addr, + u32 control_buff_size) +{ + struct ena_com_admin_queue *admin_queue; + struct ena_admin_get_feat_cmd get_cmd; + int ret; + + if (!ena_dev) { + ena_trc_err("%s : ena_dev is NULL\n", __func__); + return ENA_COM_NO_DEVICE; + } + + if (!ena_com_check_supported_feature_id(ena_dev, feature_id)) { + ena_trc_info("Feature %d isn't supported\n", feature_id); + return ENA_COM_PERMISSION; + } + + memset(&get_cmd, 0x0, sizeof(get_cmd)); + admin_queue = &ena_dev->admin_queue; + + get_cmd.aq_common_descriptor.opcode = ENA_ADMIN_GET_FEATURE; + + if (control_buff_size) + get_cmd.aq_common_descriptor.flags = + ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK; + else + get_cmd.aq_common_descriptor.flags = 0; + + ret = ena_com_mem_addr_set(ena_dev, + &get_cmd.control_buffer.address, + control_buf_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + get_cmd.control_buffer.length = control_buff_size; + + get_cmd.feat_common.feature_id = feature_id; + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *) + &get_cmd, + sizeof(get_cmd), + (struct ena_admin_acq_entry *) + get_resp, + sizeof(*get_resp)); + + if (unlikely(ret)) + ena_trc_err("Failed to submit get_feature command %d error: %d\n", + feature_id, ret); + + return ret; +} + +static int ena_com_get_feature(struct ena_com_dev *ena_dev, + struct ena_admin_get_feat_resp *get_resp, + enum ena_admin_aq_feature_id feature_id) +{ + return ena_com_get_feature_ex(ena_dev, + get_resp, + feature_id, + 0, + 0); +} + +static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + sizeof(*rss->hash_key), + rss->hash_key, + rss->hash_key_dma_addr, + rss->hash_key_mem_handle); + + if (unlikely(!rss->hash_key)) + return ENA_COM_NO_MEM; + + return 0; +} + +static int ena_com_hash_key_destroy(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + + if (rss->hash_key) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + sizeof(*rss->hash_key), + rss->hash_key, + rss->hash_key_dma_addr, + rss->hash_key_mem_handle); + rss->hash_key = NULL; + return 0; +} + +static int ena_com_hash_ctrl_init(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + sizeof(*rss->hash_ctrl), + rss->hash_ctrl, + rss->hash_ctrl_dma_addr, + rss->hash_ctrl_mem_handle); + + return 0; +} + +static int ena_com_hash_ctrl_destroy(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + + if (rss->hash_ctrl) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + sizeof(*rss->hash_ctrl), + rss->hash_ctrl, + rss->hash_ctrl_dma_addr, + rss->hash_ctrl_mem_handle); + rss->hash_ctrl = NULL; + + return 0; +} + +static int ena_com_indirect_table_allocate(struct ena_com_dev *ena_dev, + u16 log_size) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_get_feat_resp get_resp; + size_t tbl_size; + int ret; + + ret = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG); + if (unlikely(ret)) + return ret; + + if ((get_resp.u.ind_table.min_size > log_size) || + (get_resp.u.ind_table.max_size < log_size)) { + ena_trc_err("indirect table size doesn't fit. requested size: %d while min is:%d and max %d\n", + 1 << log_size, + 1 << get_resp.u.ind_table.min_size, + 1 << get_resp.u.ind_table.max_size); + return ENA_COM_INVAL; + } + + tbl_size = (1 << log_size) * + sizeof(struct ena_admin_rss_ind_table_entry); + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + tbl_size, + rss->rss_ind_tbl, + rss->rss_ind_tbl_dma_addr, + rss->rss_ind_tbl_mem_handle); + if (unlikely(!rss->rss_ind_tbl)) + goto mem_err1; + + tbl_size = (1 << log_size) * sizeof(u16); + rss->host_rss_ind_tbl = + ENA_MEM_ALLOC(ena_dev->dmadev, tbl_size); + if (unlikely(!rss->host_rss_ind_tbl)) + goto mem_err2; + + rss->tbl_log_size = log_size; + + return 0; + +mem_err2: + tbl_size = (1 << log_size) * + sizeof(struct ena_admin_rss_ind_table_entry); + + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + tbl_size, + rss->rss_ind_tbl, + rss->rss_ind_tbl_dma_addr, + rss->rss_ind_tbl_mem_handle); + rss->rss_ind_tbl = NULL; +mem_err1: + rss->tbl_log_size = 0; + return ENA_COM_NO_MEM; +} + +static int ena_com_indirect_table_destroy(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + size_t tbl_size = (1 << rss->tbl_log_size) * + sizeof(struct ena_admin_rss_ind_table_entry); + + if (rss->rss_ind_tbl) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + tbl_size, + rss->rss_ind_tbl, + rss->rss_ind_tbl_dma_addr, + rss->rss_ind_tbl_mem_handle); + rss->rss_ind_tbl = NULL; + + if (rss->host_rss_ind_tbl) + ENA_MEM_FREE(ena_dev->dmadev, rss->host_rss_ind_tbl); + rss->host_rss_ind_tbl = NULL; + + return 0; +} + +static int ena_com_create_io_sq(struct ena_com_dev *ena_dev, + struct ena_com_io_sq *io_sq, u16 cq_idx) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_admin_aq_create_sq_cmd create_cmd; + struct ena_admin_acq_create_sq_resp_desc cmd_completion; + u8 direction; + int ret; + + memset(&create_cmd, 0x0, sizeof(struct ena_admin_aq_create_sq_cmd)); + + create_cmd.aq_common_descriptor.opcode = ENA_ADMIN_CREATE_SQ; + + if (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) + direction = ENA_ADMIN_SQ_DIRECTION_TX; + else + direction = ENA_ADMIN_SQ_DIRECTION_RX; + + create_cmd.sq_identity |= (direction << + ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT) & + ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK; + + create_cmd.sq_caps_2 |= io_sq->mem_queue_type & + ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK; + + create_cmd.sq_caps_2 |= (ENA_ADMIN_COMPLETION_POLICY_DESC << + ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT) & + ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK; + + create_cmd.sq_caps_3 |= + ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK; + + create_cmd.cq_idx = cq_idx; + create_cmd.sq_depth = io_sq->q_depth; + + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) { + ret = ena_com_mem_addr_set(ena_dev, + &create_cmd.sq_ba, + io_sq->desc_addr.phys_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + } + + ret = ena_com_execute_admin_command( + admin_queue, + (struct ena_admin_aq_entry *)&create_cmd, + sizeof(create_cmd), + (struct ena_admin_acq_entry *)&cmd_completion, + sizeof(cmd_completion)); + if (unlikely(ret)) { + ena_trc_err("Failed to create IO SQ. error: %d\n", ret); + return ret; + } + + io_sq->idx = cmd_completion.sq_idx; + + io_sq->db_addr = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar + + (uintptr_t)cmd_completion.sq_doorbell_offset); + + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) { + io_sq->header_addr = (u8 __iomem *)((uintptr_t)ena_dev->mem_bar + + cmd_completion.llq_headers_offset); + + io_sq->desc_addr.pbuf_dev_addr = + (u8 __iomem *)((uintptr_t)ena_dev->mem_bar + + cmd_completion.llq_descriptors_offset); + } + + ena_trc_dbg("created sq[%u], depth[%u]\n", io_sq->idx, io_sq->q_depth); + + return ret; +} + +static int ena_com_ind_tbl_convert_to_device(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_com_io_sq *io_sq; + u16 qid; + int i; + + for (i = 0; i < 1 << rss->tbl_log_size; i++) { + qid = rss->host_rss_ind_tbl[i]; + if (qid >= ENA_TOTAL_NUM_QUEUES) + return ENA_COM_INVAL; + + io_sq = &ena_dev->io_sq_queues[qid]; + + if (io_sq->direction != ENA_COM_IO_QUEUE_DIRECTION_RX) + return ENA_COM_INVAL; + + rss->rss_ind_tbl[i].cq_idx = io_sq->idx; + } + + return 0; +} + +static int ena_com_ind_tbl_convert_from_device(struct ena_com_dev *ena_dev) +{ + u16 dev_idx_to_host_tbl[ENA_TOTAL_NUM_QUEUES] = { -1 }; + struct ena_rss *rss = &ena_dev->rss; + u16 idx, i; + + for (i = 0; i < ENA_TOTAL_NUM_QUEUES; i++) + dev_idx_to_host_tbl[ena_dev->io_sq_queues[i].idx] = i; + + for (i = 0; i < 1 << rss->tbl_log_size; i++) { + idx = rss->rss_ind_tbl[i].cq_idx; + if (idx > ENA_TOTAL_NUM_QUEUES) + return ENA_COM_INVAL; + + if (dev_idx_to_host_tbl[idx] > ENA_TOTAL_NUM_QUEUES) + return ENA_COM_INVAL; + + rss->host_rss_ind_tbl[i] = dev_idx_to_host_tbl[idx]; + } + + return 0; +} + +static int ena_com_init_interrupt_moderation_table(struct ena_com_dev *ena_dev) +{ + size_t size; + + size = sizeof(struct ena_intr_moder_entry) * ENA_INTR_MAX_NUM_OF_LEVELS; + + ena_dev->intr_moder_tbl = ENA_MEM_ALLOC(ena_dev->dmadev, size); + if (!ena_dev->intr_moder_tbl) + return ENA_COM_NO_MEM; + + ena_com_config_default_interrupt_moderation_table(ena_dev); + + return 0; +} + +static void +ena_com_update_intr_delay_resolution(struct ena_com_dev *ena_dev, + unsigned int intr_delay_resolution) +{ + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + unsigned int i; + + if (!intr_delay_resolution) { + ena_trc_err("Illegal intr_delay_resolution provided. Going to use default 1 usec resolution\n"); + intr_delay_resolution = 1; + } + ena_dev->intr_delay_resolution = intr_delay_resolution; + + /* update Rx */ + for (i = 0; i < ENA_INTR_MAX_NUM_OF_LEVELS; i++) + intr_moder_tbl[i].intr_moder_interval /= intr_delay_resolution; + + /* update Tx */ + ena_dev->intr_moder_tx_interval /= intr_delay_resolution; +} + +/*****************************************************************************/ +/******************************* API ******************************/ +/*****************************************************************************/ + +int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue, + struct ena_admin_aq_entry *cmd, + size_t cmd_size, + struct ena_admin_acq_entry *comp, + size_t comp_size) +{ + struct ena_comp_ctx *comp_ctx; + int ret = 0; + + comp_ctx = ena_com_submit_admin_cmd(admin_queue, cmd, cmd_size, + comp, comp_size); + if (unlikely(IS_ERR(comp_ctx))) { + ena_trc_err("Failed to submit command [%ld]\n", + PTR_ERR(comp_ctx)); + return PTR_ERR(comp_ctx); + } + + ret = ena_com_wait_and_process_admin_cq(comp_ctx, admin_queue); + if (unlikely(ret)) { + if (admin_queue->running_state) + ena_trc_err("Failed to process command. ret = %d\n", + ret); + else + ena_trc_dbg("Failed to process command. ret = %d\n", + ret); + } + return ret; +} + +int ena_com_create_io_cq(struct ena_com_dev *ena_dev, + struct ena_com_io_cq *io_cq) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_admin_aq_create_cq_cmd create_cmd; + struct ena_admin_acq_create_cq_resp_desc cmd_completion; + int ret; + + memset(&create_cmd, 0x0, sizeof(struct ena_admin_aq_create_cq_cmd)); + + create_cmd.aq_common_descriptor.opcode = ENA_ADMIN_CREATE_CQ; + + create_cmd.cq_caps_2 |= (io_cq->cdesc_entry_size_in_bytes / 4) & + ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK; + create_cmd.cq_caps_1 |= + ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK; + + create_cmd.msix_vector = io_cq->msix_vector; + create_cmd.cq_depth = io_cq->q_depth; + + ret = ena_com_mem_addr_set(ena_dev, + &create_cmd.cq_ba, + io_cq->cdesc_addr.phys_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + ret = ena_com_execute_admin_command( + admin_queue, + (struct ena_admin_aq_entry *)&create_cmd, + sizeof(create_cmd), + (struct ena_admin_acq_entry *)&cmd_completion, + sizeof(cmd_completion)); + if (unlikely(ret)) { + ena_trc_err("Failed to create IO CQ. error: %d\n", ret); + return ret; + } + + io_cq->idx = cmd_completion.cq_idx; + io_cq->db_addr = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar + + cmd_completion.cq_doorbell_offset); + + if (io_cq->q_depth != cmd_completion.cq_actual_depth) { + ena_trc_err("completion actual queue size (%d) is differ from requested size (%d)\n", + cmd_completion.cq_actual_depth, io_cq->q_depth); + ena_com_destroy_io_cq(ena_dev, io_cq); + return ENA_COM_NO_SPACE; + } + + io_cq->unmask_reg = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar + + cmd_completion.cq_interrupt_unmask_register); + + if (cmd_completion.cq_head_db_offset) + io_cq->cq_head_db_reg = + (u32 __iomem *)((uintptr_t)ena_dev->reg_bar + + cmd_completion.cq_head_db_offset); + + ena_trc_dbg("created cq[%u], depth[%u]\n", io_cq->idx, io_cq->q_depth); + + return ret; +} + +int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid, + struct ena_com_io_sq **io_sq, + struct ena_com_io_cq **io_cq) +{ + if (qid >= ENA_TOTAL_NUM_QUEUES) { + ena_trc_err("Invalid queue number %d but the max is %d\n", + qid, ENA_TOTAL_NUM_QUEUES); + return ENA_COM_INVAL; + } + + *io_sq = &ena_dev->io_sq_queues[qid]; + *io_cq = &ena_dev->io_cq_queues[qid]; + + return 0; +} + +void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_comp_ctx *comp_ctx; + u16 i; + + if (!admin_queue->comp_ctx) + return; + + for (i = 0; i < admin_queue->q_depth; i++) { + comp_ctx = get_comp_ctxt(admin_queue, i, false); + comp_ctx->status = ENA_CMD_ABORTED; + + ENA_WAIT_EVENT_SIGNAL(comp_ctx->wait_event); + } +} + +void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + unsigned long flags = 0; + + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + while (ATOMIC32_READ(&admin_queue->outstanding_cmds) != 0) { + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); + ENA_MSLEEP(20); + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + } + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); +} + +int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev, + struct ena_com_io_cq *io_cq) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_admin_aq_destroy_cq_cmd destroy_cmd; + struct ena_admin_acq_destroy_cq_resp_desc destroy_resp; + int ret; + + memset(&destroy_cmd, 0x0, sizeof(struct ena_admin_aq_destroy_sq_cmd)); + + destroy_cmd.cq_idx = io_cq->idx; + destroy_cmd.aq_common_descriptor.opcode = ENA_ADMIN_DESTROY_CQ; + + ret = ena_com_execute_admin_command( + admin_queue, + (struct ena_admin_aq_entry *)&destroy_cmd, + sizeof(destroy_cmd), + (struct ena_admin_acq_entry *)&destroy_resp, + sizeof(destroy_resp)); + + if (unlikely(ret && (ret != ENA_COM_NO_DEVICE))) + ena_trc_err("Failed to destroy IO CQ. error: %d\n", ret); + + return ret; +} + +bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev) +{ + return ena_dev->admin_queue.running_state; +} + +void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + unsigned long flags = 0; + + ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags); + ena_dev->admin_queue.running_state = state; + ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); +} + +void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev) +{ + u16 depth = ena_dev->aenq.q_depth; + + ENA_ASSERT(ena_dev->aenq.head == depth, "Invliad AENQ state\n"); + + /* Init head_db to mark that all entries in the queue + * are initially available + */ + ENA_REG_WRITE32(depth, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_AENQ_HEAD_DB_OFF); +} + +int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag) +{ + struct ena_com_admin_queue *admin_queue; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + struct ena_admin_get_feat_resp get_resp; + int ret = 0; + + if (unlikely(!ena_dev)) { + ena_trc_err("%s : ena_dev is NULL\n", __func__); + return ENA_COM_NO_DEVICE; + } + + ret = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_AENQ_CONFIG); + if (ret) { + ena_trc_info("Can't get aenq configuration\n"); + return ret; + } + + if ((get_resp.u.aenq.supported_groups & groups_flag) != groups_flag) { + ena_trc_warn("Trying to set unsupported aenq events. supported flag: %x asked flag: %x\n", + get_resp.u.aenq.supported_groups, + groups_flag); + return ENA_COM_PERMISSION; + } + + memset(&cmd, 0x0, sizeof(cmd)); + admin_queue = &ena_dev->admin_queue; + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.aq_common_descriptor.flags = 0; + cmd.feat_common.feature_id = ENA_ADMIN_AENQ_CONFIG; + cmd.u.aenq.enabled_groups = groups_flag; + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + + if (unlikely(ret)) + ena_trc_err("Failed to config AENQ ret: %d\n", ret); + + return ret; +} + +int ena_com_get_dma_width(struct ena_com_dev *ena_dev) +{ + u32 caps = ena_com_reg_bar_read32(ena_dev, ENA_REGS_CAPS_OFF); + int width; + + if (unlikely(caps == ENA_MMIO_READ_TIMEOUT)) { + ena_trc_err("Reg read timeout occurred\n"); + return ENA_COM_TIMER_EXPIRED; + } + + width = (caps & ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK) >> + ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT; + + ena_trc_dbg("ENA dma width: %d\n", width); + + if ((width < 32) || width > ENA_MAX_PHYS_ADDR_SIZE_BITS) { + ena_trc_err("DMA width illegal value: %d\n", width); + return ENA_COM_INVAL; + } + + ena_dev->dma_addr_bits = width; + + return width; +} + +int ena_com_validate_version(struct ena_com_dev *ena_dev) +{ + u32 ver; + u32 ctrl_ver; + u32 ctrl_ver_masked; + + /* Make sure the ENA version and the controller version are at least + * as the driver expects + */ + ver = ena_com_reg_bar_read32(ena_dev, ENA_REGS_VERSION_OFF); + ctrl_ver = ena_com_reg_bar_read32(ena_dev, + ENA_REGS_CONTROLLER_VERSION_OFF); + + if (unlikely((ver == ENA_MMIO_READ_TIMEOUT) || + (ctrl_ver == ENA_MMIO_READ_TIMEOUT))) { + ena_trc_err("Reg read timeout occurred\n"); + return ENA_COM_TIMER_EXPIRED; + } + + ena_trc_info("ena device version: %d.%d\n", + (ver & ENA_REGS_VERSION_MAJOR_VERSION_MASK) >> + ENA_REGS_VERSION_MAJOR_VERSION_SHIFT, + ver & ENA_REGS_VERSION_MINOR_VERSION_MASK); + + if (ver < MIN_ENA_VER) { + ena_trc_err("ENA version is lower than the minimal version the driver supports\n"); + return -1; + } + + ena_trc_info("ena controller version: %d.%d.%d implementation version %d\n", + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK) + >> ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT, + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK) + >> ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT, + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK), + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK) >> + ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT); + + ctrl_ver_masked = + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK) | + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK) | + (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK); + + /* Validate the ctrl version without the implementation ID */ + if (ctrl_ver_masked < MIN_ENA_CTRL_VER) { + ena_trc_err("ENA ctrl version is lower than the minimal ctrl version the driver supports\n"); + return -1; + } + + return 0; +} + +void ena_com_admin_destroy(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + + if (!admin_queue) + return; + + if (admin_queue->comp_ctx) + ENA_MEM_FREE(ena_dev->dmadev, admin_queue->comp_ctx); + admin_queue->comp_ctx = NULL; + + if (admin_queue->sq.entries) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + ADMIN_SQ_SIZE(admin_queue->q_depth), + admin_queue->sq.entries, + admin_queue->sq.dma_addr, + admin_queue->sq.mem_handle); + admin_queue->sq.entries = NULL; + + if (admin_queue->cq.entries) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + ADMIN_CQ_SIZE(admin_queue->q_depth), + admin_queue->cq.entries, + admin_queue->cq.dma_addr, + admin_queue->cq.mem_handle); + admin_queue->cq.entries = NULL; + + if (ena_dev->aenq.entries) + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + ADMIN_AENQ_SIZE(ena_dev->aenq.q_depth), + ena_dev->aenq.entries, + ena_dev->aenq.dma_addr, + ena_dev->aenq.mem_handle); + ena_dev->aenq.entries = NULL; +} + +void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling) +{ + ena_dev->admin_queue.polling = polling; +} + +int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev) +{ + struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read; + + ENA_SPINLOCK_INIT(mmio_read->lock); + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + sizeof(*mmio_read->read_resp), + mmio_read->read_resp, + mmio_read->read_resp_dma_addr, + mmio_read->read_resp_mem_handle); + if (unlikely(!mmio_read->read_resp)) + return ENA_COM_NO_MEM; + + ena_com_mmio_reg_read_request_write_dev_addr(ena_dev); + + mmio_read->read_resp->req_id = 0x0; + mmio_read->seq_num = 0x0; + mmio_read->readless_supported = true; + + return 0; +} + +void +ena_com_set_mmio_read_mode(struct ena_com_dev *ena_dev, bool readless_supported) +{ + struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read; + + mmio_read->readless_supported = readless_supported; +} + +void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev) +{ + struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read; + + ENA_REG_WRITE32(0x0, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_MMIO_RESP_LO_OFF); + ENA_REG_WRITE32(0x0, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_MMIO_RESP_HI_OFF); + + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + sizeof(*mmio_read->read_resp), + mmio_read->read_resp, + mmio_read->read_resp_dma_addr, + mmio_read->read_resp_mem_handle); + + mmio_read->read_resp = NULL; +} + +void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev) +{ + struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read; + u32 addr_low, addr_high; + + addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(mmio_read->read_resp_dma_addr); + addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(mmio_read->read_resp_dma_addr); + + ENA_REG_WRITE32(addr_low, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_MMIO_RESP_LO_OFF); + ENA_REG_WRITE32(addr_high, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_MMIO_RESP_HI_OFF); +} + +int ena_com_admin_init(struct ena_com_dev *ena_dev, + struct ena_aenq_handlers *aenq_handlers, + bool init_spinlock) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + u32 aq_caps, acq_caps, dev_sts, addr_low, addr_high; + int ret; + + dev_sts = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF); + + if (unlikely(dev_sts == ENA_MMIO_READ_TIMEOUT)) { + ena_trc_err("Reg read timeout occurred\n"); + return ENA_COM_TIMER_EXPIRED; + } + + if (!(dev_sts & ENA_REGS_DEV_STS_READY_MASK)) { + ena_trc_err("Device isn't ready, abort com init\n"); + return -1; + } + + admin_queue->q_depth = ENA_ADMIN_QUEUE_DEPTH; + + admin_queue->q_dmadev = ena_dev->dmadev; + admin_queue->polling = false; + admin_queue->curr_cmd_id = 0; + + ATOMIC32_SET(&admin_queue->outstanding_cmds, 0); + + if (init_spinlock) + ENA_SPINLOCK_INIT(admin_queue->q_lock); + + ret = ena_com_init_comp_ctxt(admin_queue); + if (ret) + goto error; + + ret = ena_com_admin_init_sq(admin_queue); + if (ret) + goto error; + + ret = ena_com_admin_init_cq(admin_queue); + if (ret) + goto error; + + admin_queue->sq.db_addr = (u32 __iomem *) + ((unsigned char *)ena_dev->reg_bar + ENA_REGS_AQ_DB_OFF); + + addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(admin_queue->sq.dma_addr); + addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(admin_queue->sq.dma_addr); + + ENA_REG_WRITE32(addr_low, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_AQ_BASE_LO_OFF); + ENA_REG_WRITE32(addr_high, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_AQ_BASE_HI_OFF); + + addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(admin_queue->cq.dma_addr); + addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(admin_queue->cq.dma_addr); + + ENA_REG_WRITE32(addr_low, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_ACQ_BASE_LO_OFF); + ENA_REG_WRITE32(addr_high, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_ACQ_BASE_HI_OFF); + + aq_caps = 0; + aq_caps |= admin_queue->q_depth & ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK; + aq_caps |= (sizeof(struct ena_admin_aq_entry) << + ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT) & + ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK; + + acq_caps = 0; + acq_caps |= admin_queue->q_depth & ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK; + acq_caps |= (sizeof(struct ena_admin_acq_entry) << + ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT) & + ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK; + + ENA_REG_WRITE32(aq_caps, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_AQ_CAPS_OFF); + ENA_REG_WRITE32(acq_caps, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_ACQ_CAPS_OFF); + ret = ena_com_admin_init_aenq(ena_dev, aenq_handlers); + if (ret) + goto error; + + admin_queue->running_state = true; + + return 0; +error: + ena_com_admin_destroy(ena_dev); + + return ret; +} + +int ena_com_create_io_queue(struct ena_com_dev *ena_dev, + u16 qid, + enum queue_direction direction, + enum ena_admin_placement_policy_type mem_queue_type, + u32 msix_vector, + u16 queue_size) +{ + struct ena_com_io_sq *io_sq; + struct ena_com_io_cq *io_cq; + int ret = 0; + + if (qid >= ENA_TOTAL_NUM_QUEUES) { + ena_trc_err("Qid (%d) is bigger than max num of queues (%d)\n", + qid, ENA_TOTAL_NUM_QUEUES); + return ENA_COM_INVAL; + } + + io_sq = &ena_dev->io_sq_queues[qid]; + io_cq = &ena_dev->io_cq_queues[qid]; + + memset(io_sq, 0x0, sizeof(struct ena_com_io_sq)); + memset(io_cq, 0x0, sizeof(struct ena_com_io_cq)); + + /* Init CQ */ + io_cq->q_depth = queue_size; + io_cq->direction = direction; + io_cq->qid = qid; + + io_cq->msix_vector = msix_vector; + + io_sq->q_depth = queue_size; + io_sq->direction = direction; + io_sq->qid = qid; + + io_sq->mem_queue_type = mem_queue_type; + + if (direction == ENA_COM_IO_QUEUE_DIRECTION_TX) + /* header length is limited to 8 bits */ + io_sq->tx_max_header_size = + ENA_MIN16(ena_dev->tx_max_header_size, SZ_256); + + ret = ena_com_init_io_sq(ena_dev, io_sq); + if (ret) + goto error; + ret = ena_com_init_io_cq(ena_dev, io_cq); + if (ret) + goto error; + + ret = ena_com_create_io_cq(ena_dev, io_cq); + if (ret) + goto error; + + ret = ena_com_create_io_sq(ena_dev, io_sq, io_cq->idx); + if (ret) + goto destroy_io_cq; + + return 0; + +destroy_io_cq: + ena_com_destroy_io_cq(ena_dev, io_cq); +error: + ena_com_io_queue_free(ena_dev, io_sq, io_cq); + return ret; +} + +void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid) +{ + struct ena_com_io_sq *io_sq; + struct ena_com_io_cq *io_cq; + + if (qid >= ENA_TOTAL_NUM_QUEUES) { + ena_trc_err("Qid (%d) is bigger than max num of queues (%d)\n", + qid, ENA_TOTAL_NUM_QUEUES); + return; + } + + io_sq = &ena_dev->io_sq_queues[qid]; + io_cq = &ena_dev->io_cq_queues[qid]; + + ena_com_destroy_io_sq(ena_dev, io_sq); + ena_com_destroy_io_cq(ena_dev, io_cq); + + ena_com_io_queue_free(ena_dev, io_sq, io_cq); +} + +int ena_com_get_link_params(struct ena_com_dev *ena_dev, + struct ena_admin_get_feat_resp *resp) +{ + return ena_com_get_feature(ena_dev, resp, ENA_ADMIN_LINK_CONFIG); +} + +int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, + struct ena_com_dev_get_features_ctx *get_feat_ctx) +{ + struct ena_admin_get_feat_resp get_resp; + int rc; + + rc = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_DEVICE_ATTRIBUTES); + if (rc) + return rc; + + memcpy(&get_feat_ctx->dev_attr, &get_resp.u.dev_attr, + sizeof(get_resp.u.dev_attr)); + ena_dev->supported_features = get_resp.u.dev_attr.supported_features; + + rc = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_MAX_QUEUES_NUM); + if (rc) + return rc; + + memcpy(&get_feat_ctx->max_queues, &get_resp.u.max_queue, + sizeof(get_resp.u.max_queue)); + ena_dev->tx_max_header_size = get_resp.u.max_queue.max_header_size; + + rc = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_AENQ_CONFIG); + if (rc) + return rc; + + memcpy(&get_feat_ctx->aenq, &get_resp.u.aenq, + sizeof(get_resp.u.aenq)); + + rc = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_STATELESS_OFFLOAD_CONFIG); + if (rc) + return rc; + + memcpy(&get_feat_ctx->offload, &get_resp.u.offload, + sizeof(get_resp.u.offload)); + + return 0; +} + +void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev) +{ + ena_com_handle_admin_completion(&ena_dev->admin_queue); +} + +/* ena_handle_specific_aenq_event: + * return the handler that is relevant to the specific event group + */ +static ena_aenq_handler ena_com_get_specific_aenq_cb(struct ena_com_dev *dev, + u16 group) +{ + struct ena_aenq_handlers *aenq_handlers = dev->aenq.aenq_handlers; + + if ((group < ENA_MAX_HANDLERS) && aenq_handlers->handlers[group]) + return aenq_handlers->handlers[group]; + + return aenq_handlers->unimplemented_handler; +} + +/* ena_aenq_intr_handler: + * handles the aenq incoming events. + * pop events from the queue and apply the specific handler + */ +void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data) +{ + struct ena_admin_aenq_entry *aenq_e; + struct ena_admin_aenq_common_desc *aenq_common; + struct ena_com_aenq *aenq = &dev->aenq; + ena_aenq_handler handler_cb; + u16 masked_head, processed = 0; + u8 phase; + + masked_head = aenq->head & (aenq->q_depth - 1); + phase = aenq->phase; + aenq_e = &aenq->entries[masked_head]; /* Get first entry */ + aenq_common = &aenq_e->aenq_common_desc; + + /* Go over all the events */ + while ((aenq_common->flags & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK) == + phase) { + ena_trc_dbg("AENQ! Group[%x] Syndrom[%x] timestamp: [%llus]\n", + aenq_common->group, + aenq_common->syndrom, + (unsigned long long)aenq_common->timestamp_low + + ((u64)aenq_common->timestamp_high << 32)); + + /* Handle specific event*/ + handler_cb = ena_com_get_specific_aenq_cb(dev, + aenq_common->group); + handler_cb(data, aenq_e); /* call the actual event handler*/ + + /* Get next event entry */ + masked_head++; + processed++; + + if (unlikely(masked_head == aenq->q_depth)) { + masked_head = 0; + phase = !phase; + } + aenq_e = &aenq->entries[masked_head]; + aenq_common = &aenq_e->aenq_common_desc; + } + + aenq->head += processed; + aenq->phase = phase; + + /* Don't update aenq doorbell if there weren't any processed events */ + if (!processed) + return; + + /* write the aenq doorbell after all AENQ descriptors were read */ + mb(); + ENA_REG_WRITE32((u32)aenq->head, (unsigned char *)dev->reg_bar + + ENA_REGS_AENQ_HEAD_DB_OFF); +} + +/* Sets the function Idx and Queue Idx to be used for + * get full statistics feature + */ +int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev, + u32 func_queue) +{ + /* Function & Queue is acquired from user in the following format : + * Bottom Half word: funct + * Top Half Word: queue + */ + ena_dev->stats_func = ENA_EXTENDED_STAT_GET_FUNCT(func_queue); + ena_dev->stats_queue = ENA_EXTENDED_STAT_GET_QUEUE(func_queue); + + return 0; +} + +int ena_com_dev_reset(struct ena_com_dev *ena_dev) +{ + u32 stat, timeout, cap, reset_val; + int rc; + + stat = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF); + cap = ena_com_reg_bar_read32(ena_dev, ENA_REGS_CAPS_OFF); + + if (unlikely((stat == ENA_MMIO_READ_TIMEOUT) || + (cap == ENA_MMIO_READ_TIMEOUT))) { + ena_trc_err("Reg read32 timeout occurred\n"); + return ENA_COM_TIMER_EXPIRED; + } + + if ((stat & ENA_REGS_DEV_STS_READY_MASK) == 0) { + ena_trc_err("Device isn't ready, can't reset device\n"); + return ENA_COM_INVAL; + } + + timeout = (cap & ENA_REGS_CAPS_RESET_TIMEOUT_MASK) >> + ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT; + if (timeout == 0) { + ena_trc_err("Invalid timeout value\n"); + return ENA_COM_INVAL; + } + + /* start reset */ + reset_val = ENA_REGS_DEV_CTL_DEV_RESET_MASK; + ENA_REG_WRITE32(reset_val, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_DEV_CTL_OFF); + + /* Write again the MMIO read request address */ + ena_com_mmio_reg_read_request_write_dev_addr(ena_dev); + + rc = wait_for_reset_state(ena_dev, timeout, + ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK); + if (rc != 0) { + ena_trc_err("Reset indication didn't turn on\n"); + return rc; + } + + /* reset done */ + ENA_REG_WRITE32(0, (unsigned char *)ena_dev->reg_bar + + ENA_REGS_DEV_CTL_OFF); + rc = wait_for_reset_state(ena_dev, timeout, 0); + if (rc != 0) { + ena_trc_err("Reset indication didn't turn off\n"); + return rc; + } + + return 0; +} + +static int ena_get_dev_stats(struct ena_com_dev *ena_dev, + struct ena_admin_aq_get_stats_cmd *get_cmd, + struct ena_admin_acq_get_stats_resp *get_resp, + enum ena_admin_get_stats_type type) +{ + struct ena_com_admin_queue *admin_queue; + int ret = 0; + + if (!ena_dev) { + ena_trc_err("%s : ena_dev is NULL\n", __func__); + return ENA_COM_NO_DEVICE; + } + + admin_queue = &ena_dev->admin_queue; + + get_cmd->aq_common_descriptor.opcode = ENA_ADMIN_GET_STATS; + get_cmd->aq_common_descriptor.flags = 0; + get_cmd->type = type; + + ret = ena_com_execute_admin_command( + admin_queue, + (struct ena_admin_aq_entry *)get_cmd, + sizeof(*get_cmd), + (struct ena_admin_acq_entry *)get_resp, + sizeof(*get_resp)); + + if (unlikely(ret)) + ena_trc_err("Failed to get stats. error: %d\n", ret); + + return ret; +} + +int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev, + struct ena_admin_basic_stats *stats) +{ + int ret = 0; + struct ena_admin_aq_get_stats_cmd get_cmd; + struct ena_admin_acq_get_stats_resp get_resp; + + memset(&get_cmd, 0x0, sizeof(get_cmd)); + ret = ena_get_dev_stats(ena_dev, &get_cmd, &get_resp, + ENA_ADMIN_GET_STATS_TYPE_BASIC); + if (likely(ret == 0)) + memcpy(stats, &get_resp.basic_stats, + sizeof(get_resp.basic_stats)); + + return ret; +} + +int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff, + u32 len) +{ + int ret = 0; + struct ena_admin_aq_get_stats_cmd get_cmd; + struct ena_admin_acq_get_stats_resp get_resp; + ena_mem_handle_t mem_handle = 0; + void *virt_addr; + dma_addr_t phys_addr; + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, len, + virt_addr, phys_addr, mem_handle); + if (!virt_addr) { + ret = ENA_COM_NO_MEM; + goto done; + } + memset(&get_cmd, 0x0, sizeof(get_cmd)); + ret = ena_com_mem_addr_set(ena_dev, + &get_cmd.u.control_buffer.address, + phys_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + get_cmd.u.control_buffer.length = len; + + get_cmd.device_id = ena_dev->stats_func; + get_cmd.queue_idx = ena_dev->stats_queue; + + ret = ena_get_dev_stats(ena_dev, &get_cmd, &get_resp, + ENA_ADMIN_GET_STATS_TYPE_EXTENDED); + if (ret < 0) + goto free_ext_stats_mem; + + ret = snprintf(buff, len, "%s", (char *)virt_addr); + +free_ext_stats_mem: + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, len, virt_addr, phys_addr, + mem_handle); +done: + return ret; +} + +int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu) +{ + struct ena_com_admin_queue *admin_queue; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + int ret = 0; + + if (unlikely(!ena_dev)) { + ena_trc_err("%s : ena_dev is NULL\n", __func__); + return ENA_COM_NO_DEVICE; + } + + if (!ena_com_check_supported_feature_id(ena_dev, ENA_ADMIN_MTU)) { + ena_trc_info("Feature %d isn't supported\n", ENA_ADMIN_MTU); + return ENA_COM_PERMISSION; + } + + memset(&cmd, 0x0, sizeof(cmd)); + admin_queue = &ena_dev->admin_queue; + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.aq_common_descriptor.flags = 0; + cmd.feat_common.feature_id = ENA_ADMIN_MTU; + cmd.u.mtu.mtu = mtu; + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + + if (unlikely(ret)) { + ena_trc_err("Failed to set mtu %d. error: %d\n", mtu, ret); + return ENA_COM_INVAL; + } + return 0; +} + +int ena_com_get_offload_settings(struct ena_com_dev *ena_dev, + struct ena_admin_feature_offload_desc *offload) +{ + int ret; + struct ena_admin_get_feat_resp resp; + + ret = ena_com_get_feature(ena_dev, &resp, + ENA_ADMIN_STATELESS_OFFLOAD_CONFIG); + if (unlikely(ret)) { + ena_trc_err("Failed to get offload capabilities %d\n", ret); + return ENA_COM_INVAL; + } + + memcpy(offload, &resp.u.offload, sizeof(resp.u.offload)); + + return 0; +} + +int ena_com_set_hash_function(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + struct ena_admin_get_feat_resp get_resp; + int ret; + + if (!ena_com_check_supported_feature_id(ena_dev, + ENA_ADMIN_RSS_HASH_FUNCTION)) { + ena_trc_info("Feature %d isn't supported\n", + ENA_ADMIN_RSS_HASH_FUNCTION); + return ENA_COM_PERMISSION; + } + + /* Validate hash function is supported */ + ret = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_RSS_HASH_FUNCTION); + if (unlikely(ret)) + return ret; + + if (get_resp.u.flow_hash_func.supported_func & (1 << rss->hash_func)) { + ena_trc_err("Func hash %d isn't supported by device, abort\n", + rss->hash_func); + return ENA_COM_PERMISSION; + } + + memset(&cmd, 0x0, sizeof(cmd)); + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.aq_common_descriptor.flags = + ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK; + cmd.feat_common.feature_id = ENA_ADMIN_RSS_HASH_FUNCTION; + cmd.u.flow_hash_func.init_val = rss->hash_init_val; + cmd.u.flow_hash_func.selected_func = 1 << rss->hash_func; + + ret = ena_com_mem_addr_set(ena_dev, + &cmd.control_buffer.address, + rss->hash_key_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + cmd.control_buffer.length = sizeof(*rss->hash_key); + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + if (unlikely(ret)) { + ena_trc_err("Failed to set hash function %d. error: %d\n", + rss->hash_func, ret); + return ENA_COM_INVAL; + } + + return 0; +} + +int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, + enum ena_admin_hash_functions func, + const u8 *key, u16 key_len, u32 init_val) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_get_feat_resp get_resp; + struct ena_admin_feature_rss_flow_hash_control *hash_key = + rss->hash_key; + int rc; + + /* Make sure size is a mult of DWs */ + if (unlikely(key_len & 0x3)) + return ENA_COM_INVAL; + + rc = ena_com_get_feature_ex(ena_dev, &get_resp, + ENA_ADMIN_RSS_HASH_FUNCTION, + rss->hash_key_dma_addr, + sizeof(*rss->hash_key)); + if (unlikely(rc)) + return rc; + + if (!((1 << func) & get_resp.u.flow_hash_func.supported_func)) { + ena_trc_err("Flow hash function %d isn't supported\n", func); + return ENA_COM_PERMISSION; + } + + switch (func) { + case ENA_ADMIN_TOEPLITZ: + if (key_len > sizeof(hash_key->key)) { + ena_trc_err("key len (%hu) is bigger than the max supported (%zu)\n", + key_len, sizeof(hash_key->key)); + return ENA_COM_INVAL; + } + + memcpy(hash_key->key, key, key_len); + rss->hash_init_val = init_val; + hash_key->keys_num = key_len >> 2; + break; + case ENA_ADMIN_CRC32: + rss->hash_init_val = init_val; + break; + default: + ena_trc_err("Invalid hash function (%d)\n", func); + return ENA_COM_INVAL; + } + + rc = ena_com_set_hash_function(ena_dev); + + /* Restore the old function */ + if (unlikely(rc)) + ena_com_get_hash_function(ena_dev, NULL, NULL); + + return rc; +} + +int ena_com_get_hash_function(struct ena_com_dev *ena_dev, + enum ena_admin_hash_functions *func, + u8 *key) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_get_feat_resp get_resp; + struct ena_admin_feature_rss_flow_hash_control *hash_key = + rss->hash_key; + int rc; + + rc = ena_com_get_feature_ex(ena_dev, &get_resp, + ENA_ADMIN_RSS_HASH_FUNCTION, + rss->hash_key_dma_addr, + sizeof(*rss->hash_key)); + if (unlikely(rc)) + return rc; + + rss->hash_func = (enum ena_admin_hash_functions)get_resp.u.flow_hash_func.selected_func; + if (func) + *func = rss->hash_func; + + if (key) + memcpy(key, hash_key->key, hash_key->keys_num << 2); + + return 0; +} + +int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev, + enum ena_admin_flow_hash_proto proto, + u16 *fields) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_get_feat_resp get_resp; + int rc; + + rc = ena_com_get_feature_ex(ena_dev, &get_resp, + ENA_ADMIN_RSS_HASH_INPUT, + rss->hash_ctrl_dma_addr, + sizeof(*rss->hash_ctrl)); + if (unlikely(rc)) + return rc; + + if (fields) + *fields = rss->hash_ctrl->selected_fields[proto].fields; + + return 0; +} + +int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_feature_rss_hash_control *hash_ctrl = rss->hash_ctrl; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + int ret; + + if (!ena_com_check_supported_feature_id(ena_dev, + ENA_ADMIN_RSS_HASH_INPUT)) { + ena_trc_info("Feature %d isn't supported\n", + ENA_ADMIN_RSS_HASH_INPUT); + return ENA_COM_PERMISSION; + } + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.aq_common_descriptor.flags = + ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK; + cmd.feat_common.feature_id = ENA_ADMIN_RSS_HASH_INPUT; + cmd.u.flow_hash_input.enabled_input_sort = + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK | + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK; + + ret = ena_com_mem_addr_set(ena_dev, + &cmd.control_buffer.address, + rss->hash_ctrl_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + cmd.control_buffer.length = sizeof(*hash_ctrl); + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + if (unlikely(ret)) { + ena_trc_err("Failed to set hash input. error: %d\n", ret); + ret = ENA_COM_INVAL; + } + + return 0; +} + +int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_feature_rss_hash_control *hash_ctrl = + rss->hash_ctrl; + u16 available_fields = 0; + int rc, i; + + /* Get the supported hash input */ + rc = ena_com_get_hash_ctrl(ena_dev, (enum ena_admin_flow_hash_proto)0, NULL); + if (unlikely(rc)) + return rc; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_TCP4].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA | + ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_UDP4].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA | + ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_TCP6].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA | + ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_UDP6].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA | + ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP6].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields = + ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA; + + hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields = + ENA_ADMIN_RSS_L2_DA | ENA_ADMIN_RSS_L2_SA; + + for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; i++) { + available_fields = hash_ctrl->selected_fields[i].fields & + hash_ctrl->supported_fields[i].fields; + if (available_fields != hash_ctrl->selected_fields[i].fields) { + ena_trc_err("hash control doesn't support all the desire configuration. proto %x supported %x selected %x\n", + i, hash_ctrl->supported_fields[i].fields, + hash_ctrl->selected_fields[i].fields); + return ENA_COM_PERMISSION; + } + } + + rc = ena_com_set_hash_ctrl(ena_dev); + + /* In case of failure, restore the old hash ctrl */ + if (unlikely(rc)) + ena_com_get_hash_ctrl(ena_dev, (enum ena_admin_flow_hash_proto)0, NULL); + + return rc; +} + +int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev, + enum ena_admin_flow_hash_proto proto, + u16 hash_fields) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_feature_rss_hash_control *hash_ctrl = rss->hash_ctrl; + u16 supported_fields; + int rc; + + if (proto > ENA_ADMIN_RSS_PROTO_NUM) { + ena_trc_err("Invalid proto num (%u)\n", proto); + return ENA_COM_INVAL; + } + + /* Get the ctrl table */ + rc = ena_com_get_hash_ctrl(ena_dev, proto, NULL); + if (unlikely(rc)) + return rc; + + /* Make sure all the fields are supported */ + supported_fields = hash_ctrl->supported_fields[proto].fields; + if ((hash_fields & supported_fields) != hash_fields) { + ena_trc_err("proto %d doesn't support the required fields %x. supports only: %x\n", + proto, hash_fields, supported_fields); + } + + hash_ctrl->selected_fields[proto].fields = hash_fields; + + rc = ena_com_set_hash_ctrl(ena_dev); + + /* In case of failure, restore the old hash ctrl */ + if (unlikely(rc)) + ena_com_get_hash_ctrl(ena_dev, (enum ena_admin_flow_hash_proto)0, NULL); + + return 0; +} + +int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev, + u16 entry_idx, u16 entry_value) +{ + struct ena_rss *rss = &ena_dev->rss; + + if (unlikely(entry_idx >= (1 << rss->tbl_log_size))) + return ENA_COM_INVAL; + + if (unlikely((entry_value > ENA_TOTAL_NUM_QUEUES))) + return ENA_COM_INVAL; + + rss->host_rss_ind_tbl[entry_idx] = entry_value; + + return 0; +} + +int ena_com_indirect_table_set(struct ena_com_dev *ena_dev) +{ + struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue; + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + int ret = 0; + + if (!ena_com_check_supported_feature_id( + ena_dev, + ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG)) { + ena_trc_info("Feature %d isn't supported\n", + ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG); + return ENA_COM_PERMISSION; + } + + ret = ena_com_ind_tbl_convert_to_device(ena_dev); + if (ret) { + ena_trc_err("Failed to convert host indirection table to device table\n"); + return ret; + } + + memset(&cmd, 0x0, sizeof(cmd)); + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.aq_common_descriptor.flags = + ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK; + cmd.feat_common.feature_id = ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG; + cmd.u.ind_table.size = rss->tbl_log_size; + cmd.u.ind_table.inline_index = 0xFFFFFFFF; + + ret = ena_com_mem_addr_set(ena_dev, + &cmd.control_buffer.address, + rss->rss_ind_tbl_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + cmd.control_buffer.length = (1 << rss->tbl_log_size) * + sizeof(struct ena_admin_rss_ind_table_entry); + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + + if (unlikely(ret)) { + ena_trc_err("Failed to set indirect table. error: %d\n", ret); + return ENA_COM_INVAL; + } + + return 0; +} + +int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl) +{ + struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_get_feat_resp get_resp; + u32 tbl_size; + int i, rc; + + tbl_size = (1 << rss->tbl_log_size) * + sizeof(struct ena_admin_rss_ind_table_entry); + + rc = ena_com_get_feature_ex(ena_dev, &get_resp, + ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG, + rss->rss_ind_tbl_dma_addr, + tbl_size); + if (unlikely(rc)) + return rc; + + if (!ind_tbl) + return 0; + + rc = ena_com_ind_tbl_convert_from_device(ena_dev); + if (unlikely(rc)) + return rc; + + for (i = 0; i < (1 << rss->tbl_log_size); i++) + ind_tbl[i] = rss->host_rss_ind_tbl[i]; + + return 0; +} + +int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 indr_tbl_log_size) +{ + int rc; + + memset(&ena_dev->rss, 0x0, sizeof(ena_dev->rss)); + + rc = ena_com_indirect_table_allocate(ena_dev, indr_tbl_log_size); + if (unlikely(rc)) + goto err_indr_tbl; + + rc = ena_com_hash_key_allocate(ena_dev); + if (unlikely(rc)) + goto err_hash_key; + + rc = ena_com_hash_ctrl_init(ena_dev); + if (unlikely(rc)) + goto err_hash_ctrl; + + return 0; + +err_hash_ctrl: + ena_com_hash_key_destroy(ena_dev); +err_hash_key: + ena_com_indirect_table_destroy(ena_dev); +err_indr_tbl: + + return rc; +} + +int ena_com_rss_destroy(struct ena_com_dev *ena_dev) +{ + ena_com_indirect_table_destroy(ena_dev); + ena_com_hash_key_destroy(ena_dev); + ena_com_hash_ctrl_destroy(ena_dev); + + memset(&ena_dev->rss, 0x0, sizeof(ena_dev->rss)); + + return 0; +} + +int ena_com_allocate_host_attribute(struct ena_com_dev *ena_dev, + u32 debug_area_size) +{ + struct ena_host_attribute *host_attr = &ena_dev->host_attr; + int rc; + + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + SZ_4K, + host_attr->host_info, + host_attr->host_info_dma_addr, + host_attr->host_info_dma_handle); + if (unlikely(!host_attr->host_info)) + return ENA_COM_NO_MEM; + + if (debug_area_size) { + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, + debug_area_size, + host_attr->debug_area_virt_addr, + host_attr->debug_area_dma_addr, + host_attr->debug_area_dma_handle); + if (unlikely(!host_attr->debug_area_virt_addr)) { + rc = ENA_COM_NO_MEM; + goto err; + } + } + + host_attr->debug_area_size = debug_area_size; + + return 0; +err: + + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + SZ_4K, + host_attr->host_info, + host_attr->host_info_dma_addr, + host_attr->host_info_dma_handle); + host_attr->host_info = NULL; + return rc; +} + +void ena_com_delete_host_attribute(struct ena_com_dev *ena_dev) +{ + struct ena_host_attribute *host_attr = &ena_dev->host_attr; + + if (host_attr->host_info) { + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + SZ_4K, + host_attr->host_info, + host_attr->host_info_dma_addr, + host_attr->host_info_dma_handle); + host_attr->host_info = NULL; + } + + if (host_attr->debug_area_virt_addr) { + ENA_MEM_FREE_COHERENT(ena_dev->dmadev, + host_attr->debug_area_size, + host_attr->debug_area_virt_addr, + host_attr->debug_area_dma_addr, + host_attr->debug_area_dma_handle); + host_attr->debug_area_virt_addr = NULL; + } +} + +int ena_com_set_host_attributes(struct ena_com_dev *ena_dev) +{ + struct ena_host_attribute *host_attr = &ena_dev->host_attr; + struct ena_com_admin_queue *admin_queue; + struct ena_admin_set_feat_cmd cmd; + struct ena_admin_set_feat_resp resp; + + int ret = 0; + + if (unlikely(!ena_dev)) { + ena_trc_err("%s : ena_dev is NULL\n", __func__); + return ENA_COM_NO_DEVICE; + } + + if (!ena_com_check_supported_feature_id(ena_dev, + ENA_ADMIN_HOST_ATTR_CONFIG)) { + ena_trc_warn("Set host attribute isn't supported\n"); + return ENA_COM_PERMISSION; + } + + memset(&cmd, 0x0, sizeof(cmd)); + admin_queue = &ena_dev->admin_queue; + + cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE; + cmd.feat_common.feature_id = ENA_ADMIN_HOST_ATTR_CONFIG; + + ret = ena_com_mem_addr_set(ena_dev, + &cmd.u.host_attr.debug_ba, + host_attr->debug_area_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + ret = ena_com_mem_addr_set(ena_dev, + &cmd.u.host_attr.os_info_ba, + host_attr->host_info_dma_addr); + if (unlikely(ret)) { + ena_trc_err("memory address set failed\n"); + return ret; + } + + cmd.u.host_attr.debug_area_size = host_attr->debug_area_size; + + ret = ena_com_execute_admin_command(admin_queue, + (struct ena_admin_aq_entry *)&cmd, + sizeof(cmd), + (struct ena_admin_acq_entry *)&resp, + sizeof(resp)); + + if (unlikely(ret)) + ena_trc_err("Failed to set host attributes: %d\n", ret); + + return ret; +} + +/* Interrupt moderation */ +bool ena_com_interrupt_moderation_supported(struct ena_com_dev *ena_dev) +{ + return ena_com_check_supported_feature_id( + ena_dev, + ENA_ADMIN_INTERRUPT_MODERATION); +} + +int +ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev, + u32 tx_coalesce_usecs) +{ + if (!ena_dev->intr_delay_resolution) { + ena_trc_err("Illegal interrupt delay granularity value\n"); + return ENA_COM_FAULT; + } + + ena_dev->intr_moder_tx_interval = tx_coalesce_usecs / + ena_dev->intr_delay_resolution; + + return 0; +} + +int +ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev, + u32 rx_coalesce_usecs) +{ + if (!ena_dev->intr_delay_resolution) { + ena_trc_err("Illegal interrupt delay granularity value\n"); + return ENA_COM_FAULT; + } + + /* We use LOWEST entry of moderation table for storing + * nonadaptive interrupt coalescing values + */ + ena_dev->intr_moder_tbl[ENA_INTR_MODER_LOWEST].intr_moder_interval = + rx_coalesce_usecs / ena_dev->intr_delay_resolution; + + return 0; +} + +void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev) +{ + if (ena_dev->intr_moder_tbl) + ENA_MEM_FREE(ena_dev->dmadev, ena_dev->intr_moder_tbl); + ena_dev->intr_moder_tbl = NULL; +} + +int ena_com_init_interrupt_moderation(struct ena_com_dev *ena_dev) +{ + struct ena_admin_get_feat_resp get_resp; + u32 delay_resolution; + int rc; + + rc = ena_com_get_feature(ena_dev, &get_resp, + ENA_ADMIN_INTERRUPT_MODERATION); + + if (rc) { + if (rc == ENA_COM_PERMISSION) { + ena_trc_info("Feature %d isn't supported\n", + ENA_ADMIN_INTERRUPT_MODERATION); + rc = 0; + } else { + ena_trc_err("Failed to get interrupt moderation admin cmd. rc: %d\n", + rc); + } + + /* no moderation supported, disable adaptive support */ + ena_com_disable_adaptive_moderation(ena_dev); + return rc; + } + + rc = ena_com_init_interrupt_moderation_table(ena_dev); + if (rc) + goto err; + + /* if moderation is supported by device we set adaptive moderation */ + delay_resolution = get_resp.u.intr_moderation.intr_delay_resolution; + ena_com_update_intr_delay_resolution(ena_dev, delay_resolution); + ena_com_enable_adaptive_moderation(ena_dev); + + return 0; +err: + ena_com_destroy_interrupt_moderation(ena_dev); + return rc; +} + +void +ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev) +{ + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + + if (!intr_moder_tbl) + return; + + intr_moder_tbl[ENA_INTR_MODER_LOWEST].intr_moder_interval = + ENA_INTR_LOWEST_USECS; + intr_moder_tbl[ENA_INTR_MODER_LOWEST].pkts_per_interval = + ENA_INTR_LOWEST_PKTS; + intr_moder_tbl[ENA_INTR_MODER_LOWEST].bytes_per_interval = + ENA_INTR_LOWEST_BYTES; + + intr_moder_tbl[ENA_INTR_MODER_LOW].intr_moder_interval = + ENA_INTR_LOW_USECS; + intr_moder_tbl[ENA_INTR_MODER_LOW].pkts_per_interval = + ENA_INTR_LOW_PKTS; + intr_moder_tbl[ENA_INTR_MODER_LOW].bytes_per_interval = + ENA_INTR_LOW_BYTES; + + intr_moder_tbl[ENA_INTR_MODER_MID].intr_moder_interval = + ENA_INTR_MID_USECS; + intr_moder_tbl[ENA_INTR_MODER_MID].pkts_per_interval = + ENA_INTR_MID_PKTS; + intr_moder_tbl[ENA_INTR_MODER_MID].bytes_per_interval = + ENA_INTR_MID_BYTES; + + intr_moder_tbl[ENA_INTR_MODER_HIGH].intr_moder_interval = + ENA_INTR_HIGH_USECS; + intr_moder_tbl[ENA_INTR_MODER_HIGH].pkts_per_interval = + ENA_INTR_HIGH_PKTS; + intr_moder_tbl[ENA_INTR_MODER_HIGH].bytes_per_interval = + ENA_INTR_HIGH_BYTES; + + intr_moder_tbl[ENA_INTR_MODER_HIGHEST].intr_moder_interval = + ENA_INTR_HIGHEST_USECS; + intr_moder_tbl[ENA_INTR_MODER_HIGHEST].pkts_per_interval = + ENA_INTR_HIGHEST_PKTS; + intr_moder_tbl[ENA_INTR_MODER_HIGHEST].bytes_per_interval = + ENA_INTR_HIGHEST_BYTES; +} + +unsigned int +ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev) +{ + return ena_dev->intr_moder_tx_interval; +} + +unsigned int +ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev) +{ + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + + if (intr_moder_tbl) + return intr_moder_tbl[ENA_INTR_MODER_LOWEST].intr_moder_interval; + + return 0; +} + +void ena_com_init_intr_moderation_entry(struct ena_com_dev *ena_dev, + enum ena_intr_moder_level level, + struct ena_intr_moder_entry *entry) +{ + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + + if (level >= ENA_INTR_MAX_NUM_OF_LEVELS) + return; + + intr_moder_tbl[level].intr_moder_interval = entry->intr_moder_interval; + if (ena_dev->intr_delay_resolution) + intr_moder_tbl[level].intr_moder_interval /= + ena_dev->intr_delay_resolution; + intr_moder_tbl[level].pkts_per_interval = entry->pkts_per_interval; + intr_moder_tbl[level].bytes_per_interval = entry->bytes_per_interval; +} + +void ena_com_get_intr_moderation_entry(struct ena_com_dev *ena_dev, + enum ena_intr_moder_level level, + struct ena_intr_moder_entry *entry) +{ + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + + if (level >= ENA_INTR_MAX_NUM_OF_LEVELS) + return; + + entry->intr_moder_interval = intr_moder_tbl[level].intr_moder_interval; + if (ena_dev->intr_delay_resolution) + entry->intr_moder_interval *= ena_dev->intr_delay_resolution; + entry->pkts_per_interval = + intr_moder_tbl[level].pkts_per_interval; + entry->bytes_per_interval = intr_moder_tbl[level].bytes_per_interval; +} diff --git a/drivers/net/ena/base/ena_com.h b/drivers/net/ena/base/ena_com.h new file mode 100644 index 00000000..19e53ffb --- /dev/null +++ b/drivers/net/ena/base/ena_com.h @@ -0,0 +1,1052 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef ENA_COM +#define ENA_COM + +#include "ena_plat.h" +#include "ena_common_defs.h" +#include "ena_admin_defs.h" +#include "ena_eth_io_defs.h" +#include "ena_regs_defs.h" +#if defined(__linux__) && !defined(__KERNEL__) +#include <rte_lcore.h> +#include <rte_spinlock.h> +#define __iomem +#endif + +#define ENA_MAX_NUM_IO_QUEUES 128U +/* We need to queues for each IO (on for Tx and one for Rx) */ +#define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES)) + +#define ENA_MAX_HANDLERS 256 + +#define ENA_MAX_PHYS_ADDR_SIZE_BITS 48 + +/* Unit in usec */ +#define ENA_REG_READ_TIMEOUT 200000 + +#define ADMIN_SQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aq_entry)) +#define ADMIN_CQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_acq_entry)) +#define ADMIN_AENQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aenq_entry)) + +/*****************************************************************************/ +/*****************************************************************************/ +/* ENA adaptive interrupt moderation settings */ + +#define ENA_INTR_LOWEST_USECS (0) +#define ENA_INTR_LOWEST_PKTS (3) +#define ENA_INTR_LOWEST_BYTES (2 * 1524) + +#define ENA_INTR_LOW_USECS (32) +#define ENA_INTR_LOW_PKTS (12) +#define ENA_INTR_LOW_BYTES (16 * 1024) + +#define ENA_INTR_MID_USECS (80) +#define ENA_INTR_MID_PKTS (48) +#define ENA_INTR_MID_BYTES (64 * 1024) + +#define ENA_INTR_HIGH_USECS (128) +#define ENA_INTR_HIGH_PKTS (96) +#define ENA_INTR_HIGH_BYTES (128 * 1024) + +#define ENA_INTR_HIGHEST_USECS (192) +#define ENA_INTR_HIGHEST_PKTS (128) +#define ENA_INTR_HIGHEST_BYTES (192 * 1024) + +#define ENA_INTR_INITIAL_TX_INTERVAL_USECS 196 +#define ENA_INTR_INITIAL_RX_INTERVAL_USECS 4 +#define ENA_INTR_DELAY_OLD_VALUE_WEIGHT 6 +#define ENA_INTR_DELAY_NEW_VALUE_WEIGHT 4 + +enum ena_intr_moder_level { + ENA_INTR_MODER_LOWEST = 0, + ENA_INTR_MODER_LOW, + ENA_INTR_MODER_MID, + ENA_INTR_MODER_HIGH, + ENA_INTR_MODER_HIGHEST, + ENA_INTR_MAX_NUM_OF_LEVELS, +}; + +struct ena_intr_moder_entry { + unsigned int intr_moder_interval; + unsigned int pkts_per_interval; + unsigned int bytes_per_interval; +}; + +enum queue_direction { + ENA_COM_IO_QUEUE_DIRECTION_TX, + ENA_COM_IO_QUEUE_DIRECTION_RX +}; + +struct ena_com_buf { + dma_addr_t paddr; /**< Buffer physical address */ + u16 len; /**< Buffer length in bytes */ +}; + +struct ena_com_rx_buf_info { + u16 len; + u16 req_id; +}; + +struct ena_com_io_desc_addr { + void __iomem *pbuf_dev_addr; /* LLQ address */ + void *virt_addr; + dma_addr_t phys_addr; + ena_mem_handle_t mem_handle; +}; + +struct ena_com_tx_meta { + u16 mss; + u16 l3_hdr_len; + u16 l3_hdr_offset; + u16 l3_outer_hdr_len; /* In words */ + u16 l3_outer_hdr_offset; + u16 l4_hdr_len; /* In words */ +}; + +struct ena_com_io_cq { + struct ena_com_io_desc_addr cdesc_addr; + + u32 __iomem *db_addr; + + /* Interrupt unmask register */ + u32 __iomem *unmask_reg; + + /* The completion queue head doorbell register */ + uint32_t __iomem *cq_head_db_reg; + + /* The value to write to the above register to unmask + * the interrupt of this queue + */ + u32 msix_vector; + + enum queue_direction direction; + + /* holds the number of cdesc of the current packet */ + u16 cur_rx_pkt_cdesc_count; + /* save the firt cdesc idx of the current packet */ + u16 cur_rx_pkt_cdesc_start_idx; + + u16 q_depth; + /* Caller qid */ + u16 qid; + + /* Device queue index */ + u16 idx; + u16 head; + u16 last_head_update; + u8 phase; + u8 cdesc_entry_size_in_bytes; + +} ____cacheline_aligned; + +struct ena_com_io_sq { + struct ena_com_io_desc_addr desc_addr; + + u32 __iomem *db_addr; + u8 __iomem *header_addr; + + enum queue_direction direction; + enum ena_admin_placement_policy_type mem_queue_type; + + u32 msix_vector; + struct ena_com_tx_meta cached_tx_meta; + + u16 q_depth; + u16 qid; + + u16 idx; + u16 tail; + u16 next_to_comp; + u16 tx_max_header_size; + u8 phase; + u8 desc_entry_size; + u8 dma_addr_bits; +} ____cacheline_aligned; + +struct ena_com_admin_cq { + struct ena_admin_acq_entry *entries; + ena_mem_handle_t mem_handle; + dma_addr_t dma_addr; + + u16 head; + u8 phase; +}; + +struct ena_com_admin_sq { + struct ena_admin_aq_entry *entries; + ena_mem_handle_t mem_handle; + dma_addr_t dma_addr; + + u32 __iomem *db_addr; + + u16 head; + u16 tail; + u8 phase; + +}; + +struct ena_com_stats_admin { + u32 aborted_cmd; + u32 submitted_cmd; + u32 completed_cmd; + u32 out_of_space; + u32 no_completion; +}; + +struct ena_com_admin_queue { + void *q_dmadev; + ena_spinlock_t q_lock; /* spinlock for the admin queue */ + struct ena_comp_ctx *comp_ctx; + u16 q_depth; + struct ena_com_admin_cq cq; + struct ena_com_admin_sq sq; + + /* Indicate if the admin queue should poll for completion */ + bool polling; + + u16 curr_cmd_id; + + /* Indicate that the ena was initialized and can + * process new admin commands + */ + bool running_state; + + /* Count the number of outstanding admin commands */ + ena_atomic32_t outstanding_cmds; + + struct ena_com_stats_admin stats; +}; + +struct ena_aenq_handlers; + +struct ena_com_aenq { + u16 head; + u8 phase; + struct ena_admin_aenq_entry *entries; + dma_addr_t dma_addr; + ena_mem_handle_t mem_handle; + u16 q_depth; + struct ena_aenq_handlers *aenq_handlers; +}; + +struct ena_com_mmio_read { + struct ena_admin_ena_mmio_req_read_less_resp *read_resp; + dma_addr_t read_resp_dma_addr; + ena_mem_handle_t read_resp_mem_handle; + u16 seq_num; + bool readless_supported; + /* spin lock to ensure a single outstanding read */ + ena_spinlock_t lock; +}; + +struct ena_rss { + /* Indirect table */ + u16 *host_rss_ind_tbl; + struct ena_admin_rss_ind_table_entry *rss_ind_tbl; + dma_addr_t rss_ind_tbl_dma_addr; + ena_mem_handle_t rss_ind_tbl_mem_handle; + u16 tbl_log_size; + + /* Hash key */ + enum ena_admin_hash_functions hash_func; + struct ena_admin_feature_rss_flow_hash_control *hash_key; + dma_addr_t hash_key_dma_addr; + ena_mem_handle_t hash_key_mem_handle; + u32 hash_init_val; + + /* Flow Control */ + struct ena_admin_feature_rss_hash_control *hash_ctrl; + dma_addr_t hash_ctrl_dma_addr; + ena_mem_handle_t hash_ctrl_mem_handle; + +}; + +struct ena_host_attribute { + /* Debug area */ + u8 *debug_area_virt_addr; + dma_addr_t debug_area_dma_addr; + ena_mem_handle_t debug_area_dma_handle; + u32 debug_area_size; + + /* Host information */ + struct ena_admin_host_info *host_info; + dma_addr_t host_info_dma_addr; + ena_mem_handle_t host_info_dma_handle; +}; + +/* Each ena_dev is a PCI function. */ +struct ena_com_dev { + struct ena_com_admin_queue admin_queue; + struct ena_com_aenq aenq; + struct ena_com_io_cq io_cq_queues[ENA_TOTAL_NUM_QUEUES]; + struct ena_com_io_sq io_sq_queues[ENA_TOTAL_NUM_QUEUES]; + void __iomem *reg_bar; + void __iomem *mem_bar; + void *dmadev; + + enum ena_admin_placement_policy_type tx_mem_queue_type; + + u16 stats_func; /* Selected function for extended statistic dump */ + u16 stats_queue; /* Selected queue for extended statistic dump */ + + u16 tx_max_header_size; + + struct ena_com_mmio_read mmio_read; + + struct ena_rss rss; + u32 supported_features; + u32 dma_addr_bits; + + struct ena_host_attribute host_attr; + bool adaptive_coalescing; + u16 intr_delay_resolution; + u32 intr_moder_tx_interval; + struct ena_intr_moder_entry *intr_moder_tbl; +}; + +struct ena_com_dev_get_features_ctx { + struct ena_admin_queue_feature_desc max_queues; + struct ena_admin_device_attr_feature_desc dev_attr; + struct ena_admin_feature_aenq_desc aenq; + struct ena_admin_feature_offload_desc offload; +}; + +typedef void (*ena_aenq_handler)(void *data, + struct ena_admin_aenq_entry *aenq_e); + +/* Holds aenq handlers. Indexed by AENQ event group */ +struct ena_aenq_handlers { + ena_aenq_handler handlers[ENA_MAX_HANDLERS]; + ena_aenq_handler unimplemented_handler; +}; + +/*****************************************************************************/ +/*****************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/* ena_com_mmio_reg_read_request_init - Init the mmio reg read mechanism + * @ena_dev: ENA communication layer struct + * + * Initialize the register read mechanism. + * + * @note: This method must be the first stage in the initialization sequence. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev); + +/* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism + * @ena_dev: ENA communication layer struct + * @realess_supported: readless mode (enable/disable) + */ +void ena_com_set_mmio_read_mode(struct ena_com_dev *ena_dev, + bool readless_supported); + +/* ena_com_mmio_reg_read_request_write_dev_addr - Write the mmio reg read return + * value physical address. + * @ena_dev: ENA communication layer struct + */ +void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev); + +/* ena_com_mmio_reg_read_request_destroy - Destroy the mmio reg read mechanism + * @ena_dev: ENA communication layer struct + */ +void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev); + +/* ena_com_admin_init - Init the admin and the async queues + * @ena_dev: ENA communication layer struct + * @aenq_handlers: Those handlers to be called upon event. + * @init_spinlock: Indicate if this method should init the admin spinlock or + * the spinlock was init before (for example, in a case of FLR). + * + * Initialize the admin submission and completion queues. + * Initialize the asynchronous events notification queues. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_admin_init(struct ena_com_dev *ena_dev, + struct ena_aenq_handlers *aenq_handlers, + bool init_spinlock); + +/* ena_com_admin_destroy - Destroy the admin and the async events queues. + * @ena_dev: ENA communication layer struct + * + * @note: Before calling this method, the caller must validate that the device + * won't send any additional admin completions/aenq. + * To achieve that, a FLR is recommended. + */ +void ena_com_admin_destroy(struct ena_com_dev *ena_dev); + +/* ena_com_dev_reset - Perform device FLR to the device. + * @ena_dev: ENA communication layer struct + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_dev_reset(struct ena_com_dev *ena_dev); + +/* ena_com_create_io_queue - Create io queue. + * @ena_dev: ENA communication layer struct + * @qid - the caller virtual queue id. + * @direction - the queue direction (Rx/Tx) + * @mem_queue_type - Indicate if this queue is LLQ or regular queue + * (relevant only for Tx queue) + * @msix_vector - MSI-X vector + * @queue_size - queue size + * + * Create the submission and the completion queues for queue id - qid. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_create_io_queue(struct ena_com_dev *ena_dev, u16 qid, + enum queue_direction direction, + enum ena_admin_placement_policy_type mem_queue_type, + u32 msix_vector, + u16 queue_size); + +/* ena_com_admin_destroy - Destroy IO queue with the queue id - qid. + * @ena_dev: ENA communication layer struct + */ +void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid); + +/* ena_com_get_io_handlers - Return the io queue handlers + * @ena_dev: ENA communication layer struct + * @qid - the caller virtual queue id. + * @io_sq - IO submission queue handler + * @io_cq - IO completion queue handler. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid, + struct ena_com_io_sq **io_sq, + struct ena_com_io_cq **io_cq); + +/* ena_com_admin_aenq_enable - ENAble asynchronous event notifications + * @ena_dev: ENA communication layer struct + * + * After this method, aenq event can be received via AENQ. + */ +void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev); + +/* ena_com_set_admin_running_state - Set the state of the admin queue + * @ena_dev: ENA communication layer struct + * + * Change the state of the admin queue (enable/disable) + */ +void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state); + +/* ena_com_get_admin_running_state - Get the admin queue state + * @ena_dev: ENA communication layer struct + * + * Retrieve the state of the admin queue (enable/disable) + * + * @return - current polling mode (enable/disable) + */ +bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev); + +/* ena_com_set_admin_polling_mode - Set the admin completion queue polling mode + * @ena_dev: ENA communication layer struct + * @polling: ENAble/Disable polling mode + * + * Set the admin completion mode. + */ +void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling); + +/* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode + * @ena_dev: ENA communication layer struct + * + * Get the admin completion mode. + * If polling mode is on, ena_com_execute_admin_command will perform a + * polling on the admin completion queue for the commands completion, + * otherwise it will wait on wait event. + * + * @return state + */ +bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev); + +/* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler + * @ena_dev: ENA communication layer struct + * + * This method go over the admin completion queue and wake up all the pending + * threads that wait on the commands wait event. + * + * @note: Should be called after MSI-X interrupt. + */ +void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev); + +/* ena_com_aenq_intr_handler - AENQ interrupt handler + * @ena_dev: ENA communication layer struct + * + * This method go over the async event notification queue and call the proper + * aenq handler. + */ +void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data); + +/* ena_com_abort_admin_commands - Abort all the outstanding admin commands. + * @ena_dev: ENA communication layer struct + * + * This method aborts all the outstanding admin commands. + * The called should then call ena_com_wait_for_abort_completion to make sure + * all the commands were completed. + */ +void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev); + +/* ena_com_wait_for_abort_completion - Wait for admin commands abort. + * @ena_dev: ENA communication layer struct + * + * This method wait until all the outstanding admin commands will be completed. + */ +void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev); + +/* ena_com_validate_version - Validate the device parameters + * @ena_dev: ENA communication layer struct + * + * This method validate the device parameters are the same as the saved + * parameters in ena_dev. + * This method is useful after device reset, to validate the device mac address + * and the device offloads are the same as before the reset. + * + * @return - 0 on success negative value otherwise. + */ +int ena_com_validate_version(struct ena_com_dev *ena_dev); + +/* ena_com_get_link_params - Retrieve physical link parameters. + * @ena_dev: ENA communication layer struct + * @resp: Link parameters + * + * Retrieve the physical link parameters, + * like speed, auto-negotiation and full duplex support. + * + * @return - 0 on Success negative value otherwise. + */ +int ena_com_get_link_params(struct ena_com_dev *ena_dev, + struct ena_admin_get_feat_resp *resp); + +/* ena_com_get_dma_width - Retrieve physical dma address width the device + * supports. + * @ena_dev: ENA communication layer struct + * + * Retrieve the maximum physical address bits the device can handle. + * + * @return: > 0 on Success and negative value otherwise. + */ +int ena_com_get_dma_width(struct ena_com_dev *ena_dev); + +/* ena_com_set_aenq_config - Set aenq groups configurations + * @ena_dev: ENA communication layer struct + * @groups flag: bit fields flags of enum ena_admin_aenq_group. + * + * Configure which aenq event group the driver would like to receive. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag); + +/* ena_com_get_dev_attr_feat - Get device features + * @ena_dev: ENA communication layer struct + * @get_feat_ctx: returned context that contain the get features. + * + * @return: 0 on Success and negative value otherwise. + */ +int +ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, + struct ena_com_dev_get_features_ctx *get_feat_ctx); + +/* ena_com_get_dev_basic_stats - Get device basic statistics + * @ena_dev: ENA communication layer struct + * @stats: stats return value + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev, + struct ena_admin_basic_stats *stats); + +/* ena_com_set_dev_mtu - Configure the device mtu. + * @ena_dev: ENA communication layer struct + * @mtu: mtu value + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu); + +/* ena_com_get_offload_settings - Retrieve the device offloads capabilities + * @ena_dev: ENA communication layer struct + * @offlad: offload return value + * + * @return: 0 on Success and negative value otherwise. + */ +int +ena_com_get_offload_settings(struct ena_com_dev *ena_dev, + struct ena_admin_feature_offload_desc *offload); + +/* ena_com_rss_init - Init RSS + * @ena_dev: ENA communication layer struct + * @log_size: indirection log size + * + * Allocate RSS/RFS resources. + * The caller then can configure rss using ena_com_set_hash_function, + * ena_com_set_hash_ctrl and ena_com_indirect_table_set. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); + +/* ena_com_rss_destroy - Destroy rss + * @ena_dev: ENA communication layer struct + * + * Free all the RSS/RFS resources. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_rss_destroy(struct ena_com_dev *ena_dev); + +/* ena_com_fill_hash_function - Fill RSS hash function + * @ena_dev: ENA communication layer struct + * @func: The hash function (Toeplitz or crc) + * @key: Hash key (for toeplitz hash) + * @key_len: key length (max length 10 DW) + * @init_val: initial value for the hash function + * + * Fill the ena_dev resources with the desire hash function, hash key, key_len + * and key initial value (if needed by the hash function). + * To flush the key into the device the caller should call + * ena_com_set_hash_function. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, + enum ena_admin_hash_functions func, + const u8 *key, u16 key_len, u32 init_val); + +/* ena_com_set_hash_function - Flush the hash function and it dependencies to + * the device. + * @ena_dev: ENA communication layer struct + * + * Flush the hash function and it dependencies (key, key length and + * initial value) if needed. + * + * @note: Prior to this method the caller should call ena_com_fill_hash_function + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_hash_function(struct ena_com_dev *ena_dev); + +/* ena_com_get_hash_function - Retrieve the hash function and the hash key + * from the device. + * @ena_dev: ENA communication layer struct + * @func: hash function + * @key: hash key + * + * Retrieve the hash function and the hash key from the device. + * + * @note: If the caller called ena_com_fill_hash_function but didn't flash + * it to the device, the new configuration will be lost. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_get_hash_function(struct ena_com_dev *ena_dev, + enum ena_admin_hash_functions *func, + u8 *key); + +/* ena_com_fill_hash_ctrl - Fill RSS hash control + * @ena_dev: ENA communication layer struct. + * @proto: The protocol to configure. + * @hash_fields: bit mask of ena_admin_flow_hash_fields + * + * Fill the ena_dev resources with the desire hash control (the ethernet + * fields that take part of the hash) for a specific protocol. + * To flush the hash control to the device, the caller should call + * ena_com_set_hash_ctrl. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev, + enum ena_admin_flow_hash_proto proto, + u16 hash_fields); + +/* ena_com_set_hash_ctrl - Flush the hash control resources to the device. + * @ena_dev: ENA communication layer struct + * + * Flush the hash control (the ethernet fields that take part of the hash) + * + * @note: Prior to this method the caller should call ena_com_fill_hash_ctrl. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev); + +/* ena_com_get_hash_ctrl - Retrieve the hash control from the device. + * @ena_dev: ENA communication layer struct + * @proto: The protocol to retrieve. + * @fields: bit mask of ena_admin_flow_hash_fields. + * + * Retrieve the hash control from the device. + * + * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash + * it to the device, the new configuration will be lost. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev, + enum ena_admin_flow_hash_proto proto, + u16 *fields); + +/* ena_com_set_default_hash_ctrl - Set the hash control to a default + * configuration. + * @ena_dev: ENA communication layer struct + * + * Fill the ena_dev resources with the default hash control configuration. + * To flush the hash control to the device, the caller should call + * ena_com_set_hash_ctrl. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev); + +/* ena_com_indirect_table_fill_entry - Fill a single entry in the RSS + * indirection table + * @ena_dev: ENA communication layer struct. + * @entry_idx - indirection table entry. + * @entry_value - redirection value + * + * Fill a single entry of the RSS indirection table in the ena_dev resources. + * To flush the indirection table to the device, the called should call + * ena_com_indirect_table_set. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev, + u16 entry_idx, u16 entry_value); + +/* ena_com_indirect_table_set - Flush the indirection table to the device. + * @ena_dev: ENA communication layer struct + * + * Flush the indirection hash control to the device. + * Prior to this method the caller should call ena_com_indirect_table_fill_entry + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_indirect_table_set(struct ena_com_dev *ena_dev); + +/* ena_com_indirect_table_get - Retrieve the indirection table from the device. + * @ena_dev: ENA communication layer struct + * @ind_tbl: indirection table + * + * Retrieve the RSS indirection table from the device. + * + * @note: If the caller called ena_com_indirect_table_fill_entry but didn't + * flash it to the device, the new configuration will be lost. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl); + +/* ena_com_allocate_host_attribute - Allocate host attributes resources. + * @ena_dev: ENA communication layer struct + * @debug_area_size: Debug aread size + * + * Allocate host info and debug area. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_allocate_host_attribute(struct ena_com_dev *ena_dev, + u32 debug_area_size); + +/* ena_com_allocate_host_attribute - Free the host attributes resources. + * @ena_dev: ENA communication layer struct + * + * Free the allocate host info and debug area. + */ +void ena_com_delete_host_attribute(struct ena_com_dev *ena_dev); + +/* ena_com_set_host_attributes - Update the device with the host + * attributes base address. + * @ena_dev: ENA communication layer struct + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_set_host_attributes(struct ena_com_dev *ena_dev); + +/* ena_com_create_io_cq - Create io completion queue. + * @ena_dev: ENA communication layer struct + * @io_cq - io completion queue handler + + * Create IO completion queue. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_create_io_cq(struct ena_com_dev *ena_dev, + struct ena_com_io_cq *io_cq); + +/* ena_com_destroy_io_cq - Destroy io completion queue. + * @ena_dev: ENA communication layer struct + * @io_cq - io completion queue handler + + * Destroy IO completion queue. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev, + struct ena_com_io_cq *io_cq); + +/* ena_com_execute_admin_command - Execute admin command + * @admin_queue: admin queue. + * @cmd: the admin command to execute. + * @cmd_size: the command size. + * @cmd_completion: command completion return value. + * @cmd_comp_size: command completion size. + + * Submit an admin command and then wait until the device will return a + * completion. + * The completion will be copyed into cmd_comp. + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue, + struct ena_admin_aq_entry *cmd, + size_t cmd_size, + struct ena_admin_acq_entry *cmd_comp, + size_t cmd_comp_size); + +/* ena_com_init_interrupt_moderation - Init interrupt moderation + * @ena_dev: ENA communication layer struct + * + * @return - 0 on success, negative value on failure. + */ +int ena_com_init_interrupt_moderation(struct ena_com_dev *ena_dev); + +/* ena_com_destroy_interrupt_moderation - Destroy interrupt moderation resources + * @ena_dev: ENA communication layer struct + */ +void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev); + +/* ena_com_interrupt_moderation_supported - Return if interrupt moderation + * capability is supported by the device. + * + * @return - supported or not. + */ +bool ena_com_interrupt_moderation_supported(struct ena_com_dev *ena_dev); + +/* ena_com_config_default_interrupt_moderation_table - Restore the interrupt + * moderation table back to the default parameters. + * @ena_dev: ENA communication layer struct + */ +void +ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev); + +/* ena_com_update_nonadaptive_moderation_interval_tx - Update the + * non-adaptive interval in Tx direction. + * @ena_dev: ENA communication layer struct + * @tx_coalesce_usecs: Interval in usec. + * + * @return - 0 on success, negative value on failure. + */ +int +ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev, + u32 tx_coalesce_usecs); + +/* ena_com_update_nonadaptive_moderation_interval_rx - Update the + * non-adaptive interval in Rx direction. + * @ena_dev: ENA communication layer struct + * @rx_coalesce_usecs: Interval in usec. + * + * @return - 0 on success, negative value on failure. + */ +int +ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev, + u32 rx_coalesce_usecs); + +/* ena_com_get_nonadaptive_moderation_interval_tx - Retrieve the + * non-adaptive interval in Tx direction. + * @ena_dev: ENA communication layer struct + * + * @return - interval in usec + */ +unsigned int +ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev); + +/* ena_com_get_nonadaptive_moderation_interval_rx - Retrieve the + * non-adaptive interval in Rx direction. + * @ena_dev: ENA communication layer struct + * + * @return - interval in usec + */ +unsigned int +ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev); + +/* ena_com_init_intr_moderation_entry - Update a single entry in the interrupt + * moderation table. + * @ena_dev: ENA communication layer struct + * @level: Interrupt moderation table level + * @entry: Entry value + * + * Update a single entry in the interrupt moderation table. + */ +void ena_com_init_intr_moderation_entry(struct ena_com_dev *ena_dev, + enum ena_intr_moder_level level, + struct ena_intr_moder_entry *entry); + +/* ena_com_get_intr_moderation_entry - Init ena_intr_moder_entry. + * @ena_dev: ENA communication layer struct + * @level: Interrupt moderation table level + * @entry: Entry to fill. + * + * Initialize the entry according to the adaptive interrupt moderation table. + */ +void ena_com_get_intr_moderation_entry(struct ena_com_dev *ena_dev, + enum ena_intr_moder_level level, + struct ena_intr_moder_entry *entry); + +static inline bool +ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_dev) +{ + return ena_dev->adaptive_coalescing; +} + +static inline void +ena_com_enable_adaptive_moderation(struct ena_com_dev *ena_dev) +{ + ena_dev->adaptive_coalescing = true; +} + +static inline void +ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_dev) +{ + ena_dev->adaptive_coalescing = false; +} + +/* ena_com_calculate_interrupt_delay - Calculate new interrupt delay + * @ena_dev: ENA communication layer struct + * @pkts: Number of packets since the last update + * @bytes: Number of bytes received since the last update. + * @smoothed_interval: Returned interval + * @moder_tbl_idx: Current table level as input update new level as return + * value. + */ +static inline void +ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev, + unsigned int pkts, + unsigned int bytes, + unsigned int *smoothed_interval, + unsigned int *moder_tbl_idx) +{ + enum ena_intr_moder_level curr_moder_idx, new_moder_idx; + struct ena_intr_moder_entry *curr_moder_entry; + struct ena_intr_moder_entry *pred_moder_entry; + struct ena_intr_moder_entry *new_moder_entry; + struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; + unsigned int interval; + + /* We apply adaptive moderation on Rx path only. + * Tx uses static interrupt moderation. + */ + if (!pkts || !bytes) + /* Tx interrupt, or spurious interrupt, + * in both cases we just use same delay values + */ + return; + + curr_moder_idx = (enum ena_intr_moder_level)*moder_tbl_idx; + if (unlikely(curr_moder_idx >= ENA_INTR_MAX_NUM_OF_LEVELS)) { + ena_trc_err("Wrong moderation index %u\n", curr_moder_idx); + return; + } + + curr_moder_entry = &intr_moder_tbl[curr_moder_idx]; + new_moder_idx = curr_moder_idx; + + if (curr_moder_idx == ENA_INTR_MODER_LOWEST) { + if ((pkts > curr_moder_entry->pkts_per_interval) || + (bytes > curr_moder_entry->bytes_per_interval)) + new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx + 1); + } else { + pred_moder_entry = &intr_moder_tbl[curr_moder_idx - 1]; + + if ((pkts <= pred_moder_entry->pkts_per_interval) || + (bytes <= pred_moder_entry->bytes_per_interval)) + new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx - 1); + else if ((pkts > curr_moder_entry->pkts_per_interval) || + (bytes > curr_moder_entry->bytes_per_interval)) { + if (curr_moder_idx != ENA_INTR_MODER_HIGHEST) + new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx + 1); + } + } + new_moder_entry = &intr_moder_tbl[new_moder_idx]; + + interval = new_moder_entry->intr_moder_interval; + *smoothed_interval = ( + (interval * ENA_INTR_DELAY_NEW_VALUE_WEIGHT + + ENA_INTR_DELAY_OLD_VALUE_WEIGHT * (*smoothed_interval)) + 5) / + 10; + + *moder_tbl_idx = new_moder_idx; +} + +/* ena_com_update_intr_reg - Prepare interrupt register + * @intr_reg: interrupt register to update. + * @rx_delay_interval: Rx interval in usecs + * @tx_delay_interval: Tx interval in usecs + * @unmask: unask enable/disable + * + * Prepare interrupt update register with the supplied parameters. + */ +static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, + u32 rx_delay_interval, + u32 tx_delay_interval, + bool unmask) +{ + intr_reg->intr_control = 0; + intr_reg->intr_control |= rx_delay_interval & + ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; + + intr_reg->intr_control |= + (tx_delay_interval << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT) + & ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; + + if (unmask) + intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; +} + +int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff, + u32 len); + +int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev, + u32 funct_queue); + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ +#endif /* !(ENA_COM) */ diff --git a/drivers/net/ena/base/ena_defs/ena_admin_defs.h b/drivers/net/ena/base/ena_defs/ena_admin_defs.h new file mode 100644 index 00000000..fe412469 --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_admin_defs.h @@ -0,0 +1,1979 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_ADMIN_H_ +#define _ENA_ADMIN_H_ + +/* admin commands opcodes */ +enum ena_admin_aq_opcode { + /* create submission queue */ + ENA_ADMIN_CREATE_SQ = 1, + + /* destroy submission queue */ + ENA_ADMIN_DESTROY_SQ = 2, + + /* create completion queue */ + ENA_ADMIN_CREATE_CQ = 3, + + /* destroy completion queue */ + ENA_ADMIN_DESTROY_CQ = 4, + + /* get capabilities of particular feature */ + ENA_ADMIN_GET_FEATURE = 8, + + /* get capabilities of particular feature */ + ENA_ADMIN_SET_FEATURE = 9, + + /* get statistics */ + ENA_ADMIN_GET_STATS = 11, +}; + +/* privileged amdin commands opcodes */ +enum ena_admin_aq_opcode_privileged { + /* get device capabilities */ + ENA_ADMIN_IDENTIFY = 48, + + /* configure device */ + ENA_ADMIN_CONFIGURE_PF_DEVICE = 49, + + /* setup SRIOV PCIe Virtual Function capabilities */ + ENA_ADMIN_SETUP_VF = 50, + + /* load firmware to the controller */ + ENA_ADMIN_LOAD_FIRMWARE = 52, + + /* commit previously loaded firmare */ + ENA_ADMIN_COMMIT_FIRMWARE = 53, + + /* quiesce virtual function */ + ENA_ADMIN_QUIESCE_VF = 54, + + /* load virtual function from migrates context */ + ENA_ADMIN_MIGRATE_VF = 55, +}; + +/* admin command completion status codes */ +enum ena_admin_aq_completion_status { + /* Request completed successfully */ + ENA_ADMIN_SUCCESS = 0, + + /* no resources to satisfy request */ + ENA_ADMIN_RESOURCE_ALLOCATION_FAILURE = 1, + + /* Bad opcode in request descriptor */ + ENA_ADMIN_BAD_OPCODE = 2, + + /* Unsupported opcode in request descriptor */ + ENA_ADMIN_UNSUPPORTED_OPCODE = 3, + + /* Wrong request format */ + ENA_ADMIN_MALFORMED_REQUEST = 4, + + /* One of parameters is not valid. Provided in ACQ entry + * extended_status + */ + ENA_ADMIN_ILLEGAL_PARAMETER = 5, + + /* unexpected error */ + ENA_ADMIN_UNKNOWN_ERROR = 6, +}; + +/* get/set feature subcommands opcodes */ +enum ena_admin_aq_feature_id { + /* list of all supported attributes/capabilities in the ENA */ + ENA_ADMIN_DEVICE_ATTRIBUTES = 1, + + /* max number of supported queues per for every queues type */ + ENA_ADMIN_MAX_QUEUES_NUM = 2, + + /* low latency queues capabilities (max entry size, depth) */ + ENA_ADMIN_LLQ_CONFIG = 3, + + /* power management capabilities */ + ENA_ADMIN_POWER_MANAGEMENT_CONFIG = 4, + + /* MAC address filters support, multicast, broadcast, and + * promiscuous + */ + ENA_ADMIN_MAC_FILTERS_CONFIG = 5, + + /* VLAN membership, frame format, etc. */ + ENA_ADMIN_VLAN_CONFIG = 6, + + /* Available size for various on-chip memory resources, accessible + * by the driver + */ + ENA_ADMIN_ON_DEVICE_MEMORY_CONFIG = 7, + + /* Receive Side Scaling (RSS) function */ + ENA_ADMIN_RSS_HASH_FUNCTION = 10, + + /* stateless TCP/UDP/IP offload capabilities. */ + ENA_ADMIN_STATELESS_OFFLOAD_CONFIG = 11, + + /* Multiple tuples flow table configuration */ + ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG = 12, + + /* max MTU, current MTU */ + ENA_ADMIN_MTU = 14, + + /* Receive Side Scaling (RSS) hash input */ + ENA_ADMIN_RSS_HASH_INPUT = 18, + + /* overlay tunnels configuration */ + ENA_ADMIN_TUNNEL_CONFIG = 19, + + /* interrupt moderation parameters */ + ENA_ADMIN_INTERRUPT_MODERATION = 20, + + /* 1588v2 and Timing configuration */ + ENA_ADMIN_1588_CONFIG = 21, + + /* Packet Header format templates configuration for input and + * output parsers + */ + ENA_ADMIN_PKT_HEADER_TEMPLATES_CONFIG = 23, + + /* AENQ configuration */ + ENA_ADMIN_AENQ_CONFIG = 26, + + /* Link configuration */ + ENA_ADMIN_LINK_CONFIG = 27, + + /* Host attributes configuration */ + ENA_ADMIN_HOST_ATTR_CONFIG = 28, + + /* Number of valid opcodes */ + ENA_ADMIN_FEATURES_OPCODE_NUM = 32, +}; + +/* descriptors and headers placement */ +enum ena_admin_placement_policy_type { + /* descriptors and headers are in OS memory */ + ENA_ADMIN_PLACEMENT_POLICY_HOST = 1, + + /* descriptors and headers in device memory (a.k.a Low Latency + * Queue) + */ + ENA_ADMIN_PLACEMENT_POLICY_DEV = 3, +}; + +/* link speeds */ +enum ena_admin_link_types { + ENA_ADMIN_LINK_SPEED_1G = 0x1, + + ENA_ADMIN_LINK_SPEED_2_HALF_G = 0x2, + + ENA_ADMIN_LINK_SPEED_5G = 0x4, + + ENA_ADMIN_LINK_SPEED_10G = 0x8, + + ENA_ADMIN_LINK_SPEED_25G = 0x10, + + ENA_ADMIN_LINK_SPEED_40G = 0x20, + + ENA_ADMIN_LINK_SPEED_50G = 0x40, + + ENA_ADMIN_LINK_SPEED_100G = 0x80, + + ENA_ADMIN_LINK_SPEED_200G = 0x100, + + ENA_ADMIN_LINK_SPEED_400G = 0x200, +}; + +/* completion queue update policy */ +enum ena_admin_completion_policy_type { + /* cqe for each sq descriptor */ + ENA_ADMIN_COMPLETION_POLICY_DESC = 0, + + /* cqe upon request in sq descriptor */ + ENA_ADMIN_COMPLETION_POLICY_DESC_ON_DEMAND = 1, + + /* current queue head pointer is updated in OS memory upon sq + * descriptor request + */ + ENA_ADMIN_COMPLETION_POLICY_HEAD_ON_DEMAND = 2, + + /* current queue head pointer is updated in OS memory for each sq + * descriptor + */ + ENA_ADMIN_COMPLETION_POLICY_HEAD = 3, +}; + +/* type of get statistics command */ +enum ena_admin_get_stats_type { + /* Basic statistics */ + ENA_ADMIN_GET_STATS_TYPE_BASIC = 0, + + /* Extended statistics */ + ENA_ADMIN_GET_STATS_TYPE_EXTENDED = 1, +}; + +/* scope of get statistics command */ +enum ena_admin_get_stats_scope { + ENA_ADMIN_SPECIFIC_QUEUE = 0, + + ENA_ADMIN_ETH_TRAFFIC = 1, +}; + +/* ENA Admin Queue (AQ) common descriptor */ +struct ena_admin_aq_common_desc { + /* word 0 : */ + /* command identificator to associate it with the completion + * 11:0 : command_id + * 15:12 : reserved12 + */ + uint16_t command_id; + + /* as appears in ena_aq_opcode */ + uint8_t opcode; + + /* 0 : phase + * 1 : ctrl_data - control buffer address valid + * 2 : ctrl_data_indirect - control buffer address + * points to list of pages with addresses of control + * buffers + * 7:3 : reserved3 + */ + uint8_t flags; +}; + +/* used in ena_aq_entry. Can point directly to control data, or to a page + * list chunk. Used also at the end of indirect mode page list chunks, for + * chaining. + */ +struct ena_admin_ctrl_buff_info { + /* word 0 : indicates length of the buffer pointed by + * control_buffer_address. + */ + uint32_t length; + + /* words 1:2 : points to control buffer (direct or indirect) */ + struct ena_common_mem_addr address; +}; + +/* submission queue full identification */ +struct ena_admin_sq { + /* word 0 : */ + /* queue id */ + uint16_t sq_idx; + + /* 4:0 : reserved + * 7:5 : sq_direction - 0x1 - Tx; 0x2 - Rx + */ + uint8_t sq_identity; + + uint8_t reserved1; +}; + +/* AQ entry format */ +struct ena_admin_aq_entry { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* words 1:3 : */ + union { + /* command specific inline data */ + uint32_t inline_data_w1[3]; + + /* words 1:3 : points to control buffer (direct or + * indirect, chained if needed) + */ + struct ena_admin_ctrl_buff_info control_buffer; + } u; + + /* command specific inline data */ + uint32_t inline_data_w4[12]; +}; + +/* ENA Admin Completion Queue (ACQ) common descriptor */ +struct ena_admin_acq_common_desc { + /* word 0 : */ + /* command identifier to associate it with the aq descriptor + * 11:0 : command_id + * 15:12 : reserved12 + */ + uint16_t command; + + /* status of request execution */ + uint8_t status; + + /* 0 : phase + * 7:1 : reserved1 + */ + uint8_t flags; + + /* word 1 : */ + /* provides additional info */ + uint16_t extended_status; + + /* submission queue head index, serves as a hint what AQ entries can + * be revoked + */ + uint16_t sq_head_indx; +}; + +/* ACQ entry format */ +struct ena_admin_acq_entry { + /* words 0:1 : */ + struct ena_admin_acq_common_desc acq_common_descriptor; + + /* response type specific data */ + uint32_t response_specific_data[14]; +}; + +/* ENA AQ Create Submission Queue command. Placed in control buffer pointed + * by AQ entry + */ +struct ena_admin_aq_create_sq_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* word 1 : */ + /* 4:0 : reserved0_w1 + * 7:5 : sq_direction - 0x1 - Tx, 0x2 - Rx + */ + uint8_t sq_identity; + + uint8_t reserved8_w1; + + /* 3:0 : placement_policy - Describing where the SQ + * descriptor ring and the SQ packet headers reside: + * 0x1 - descriptors and headers are in OS memory, + * 0x3 - descriptors and headers in device memory + * (a.k.a Low Latency Queue) + * 6:4 : completion_policy - Describing what policy + * to use for generation completion entry (cqe) in + * the CQ associated with this SQ: 0x0 - cqe for each + * sq descriptor, 0x1 - cqe upon request in sq + * descriptor, 0x2 - current queue head pointer is + * updated in OS memory upon sq descriptor request + * 0x3 - current queue head pointer is updated in OS + * memory for each sq descriptor + * 7 : reserved15_w1 + */ + uint8_t sq_caps_2; + + /* 0 : is_physically_contiguous - Described if the + * queue ring memory is allocated in physical + * contiguous pages or split. + * 7:1 : reserved17_w1 + */ + uint8_t sq_caps_3; + + /* word 2 : */ + /* associated completion queue id. This CQ must be created prior to + * SQ creation + */ + uint16_t cq_idx; + + /* submission queue depth in entries */ + uint16_t sq_depth; + + /* words 3:4 : SQ physical base address in OS memory. This field + * should not be used for Low Latency queues. Has to be page + * aligned. + */ + struct ena_common_mem_addr sq_ba; + + /* words 5:6 : specifies queue head writeback location in OS + * memory. Valid if completion_policy is set to + * completion_policy_head_on_demand or completion_policy_head. Has + * to be cache aligned + */ + struct ena_common_mem_addr sq_head_writeback; + + /* word 7 : reserved word */ + uint32_t reserved0_w7; + + /* word 8 : reserved word */ + uint32_t reserved0_w8; +}; + +/* submission queue direction */ +enum ena_admin_sq_direction { + ENA_ADMIN_SQ_DIRECTION_TX = 1, + + ENA_ADMIN_SQ_DIRECTION_RX = 2, +}; + +/* ENA Response for Create SQ Command. Appears in ACQ entry as + * response_specific_data + */ +struct ena_admin_acq_create_sq_resp_desc { + /* words 0:1 : Common Admin Queue completion descriptor */ + struct ena_admin_acq_common_desc acq_common_desc; + + /* word 2 : */ + /* sq identifier */ + uint16_t sq_idx; + + uint16_t reserved; + + /* word 3 : queue doorbell address as and offset to PCIe MMIO REG + * BAR + */ + uint32_t sq_doorbell_offset; + + /* word 4 : low latency queue ring base address as an offset to + * PCIe MMIO LLQ_MEM BAR + */ + uint32_t llq_descriptors_offset; + + /* word 5 : low latency queue headers' memory as an offset to PCIe + * MMIO LLQ_MEM BAR + */ + uint32_t llq_headers_offset; +}; + +/* ENA AQ Destroy Submission Queue command. Placed in control buffer + * pointed by AQ entry + */ +struct ena_admin_aq_destroy_sq_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* words 1 : */ + struct ena_admin_sq sq; +}; + +/* ENA Response for Destroy SQ Command. Appears in ACQ entry as + * response_specific_data + */ +struct ena_admin_acq_destroy_sq_resp_desc { + /* words 0:1 : Common Admin Queue completion descriptor */ + struct ena_admin_acq_common_desc acq_common_desc; +}; + +/* ENA AQ Create Completion Queue command */ +struct ena_admin_aq_create_cq_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* word 1 : */ + /* 4:0 : reserved5 + * 5 : interrupt_mode_enabled - if set, cq operates + * in interrupt mode, otherwise - polling + * 7:6 : reserved6 + */ + uint8_t cq_caps_1; + + /* 4:0 : cq_entry_size_words - size of CQ entry in + * 32-bit words, valid values: 4, 8. + * 7:5 : reserved7 + */ + uint8_t cq_caps_2; + + /* completion queue depth in # of entries. must be power of 2 */ + uint16_t cq_depth; + + /* word 2 : msix vector assigned to this cq */ + uint32_t msix_vector; + + /* words 3:4 : cq physical base address in OS memory. CQ must be + * physically contiguous + */ + struct ena_common_mem_addr cq_ba; +}; + +/* ENA Response for Create CQ Command. Appears in ACQ entry as response + * specific data + */ +struct ena_admin_acq_create_cq_resp_desc { + /* words 0:1 : Common Admin Queue completion descriptor */ + struct ena_admin_acq_common_desc acq_common_desc; + + /* word 2 : */ + /* cq identifier */ + uint16_t cq_idx; + + /* actual cq depth in # of entries */ + uint16_t cq_actual_depth; + + /* word 3 : doorbell address as an offset to PCIe MMIO REG BAR */ + uint32_t cq_doorbell_offset; + + /* word 4 : completion head doorbell address as an offset to PCIe + * MMIO REG BAR + */ + uint32_t cq_head_db_offset; + + /* word 5 : interrupt unmask register address as an offset into + * PCIe MMIO REG BAR + */ + uint32_t cq_interrupt_unmask_register; +}; + +/* ENA AQ Destroy Completion Queue command. Placed in control buffer + * pointed by AQ entry + */ +struct ena_admin_aq_destroy_cq_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* word 1 : */ + /* associated queue id. */ + uint16_t cq_idx; + + uint16_t reserved1; +}; + +/* ENA Response for Destroy CQ Command. Appears in ACQ entry as + * response_specific_data + */ +struct ena_admin_acq_destroy_cq_resp_desc { + /* words 0:1 : Common Admin Queue completion descriptor */ + struct ena_admin_acq_common_desc acq_common_desc; +}; + +/* ENA AQ Get Statistics command. Extended statistics are placed in control + * buffer pointed by AQ entry + */ +struct ena_admin_aq_get_stats_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* words 1:3 : */ + union { + /* command specific inline data */ + uint32_t inline_data_w1[3]; + + /* words 1:3 : points to control buffer (direct or + * indirect, chained if needed) + */ + struct ena_admin_ctrl_buff_info control_buffer; + } u; + + /* word 4 : */ + /* stats type as defined in enum ena_admin_get_stats_type */ + uint8_t type; + + /* stats scope defined in enum ena_admin_get_stats_scope */ + uint8_t scope; + + uint16_t reserved3; + + /* word 5 : */ + /* queue id. used when scope is specific_queue */ + uint16_t queue_idx; + + /* device id, value 0xFFFF means mine. only privileged device can get + * stats of other device + */ + uint16_t device_id; +}; + +/* Basic Statistics Command. */ +struct ena_admin_basic_stats { + /* word 0 : */ + uint32_t tx_bytes_low; + + /* word 1 : */ + uint32_t tx_bytes_high; + + /* word 2 : */ + uint32_t tx_pkts_low; + + /* word 3 : */ + uint32_t tx_pkts_high; + + /* word 4 : */ + uint32_t rx_bytes_low; + + /* word 5 : */ + uint32_t rx_bytes_high; + + /* word 6 : */ + uint32_t rx_pkts_low; + + /* word 7 : */ + uint32_t rx_pkts_high; + + /* word 8 : */ + uint32_t rx_drops_low; + + /* word 9 : */ + uint32_t rx_drops_high; +}; + +/* ENA Response for Get Statistics Command. Appears in ACQ entry as + * response_specific_data + */ +struct ena_admin_acq_get_stats_resp { + /* words 0:1 : Common Admin Queue completion descriptor */ + struct ena_admin_acq_common_desc acq_common_desc; + + /* words 2:11 : */ + struct ena_admin_basic_stats basic_stats; +}; + +/* ENA Get/Set Feature common descriptor. Appears as inline word in + * ena_aq_entry + */ +struct ena_admin_get_set_feature_common_desc { + /* word 0 : */ + /* 1:0 : select - 0x1 - current value; 0x3 - default + * value + * 7:3 : reserved3 + */ + uint8_t flags; + + /* as appears in ena_feature_id */ + uint8_t feature_id; + + /* reserved16 */ + uint16_t reserved16; +}; + +/* ENA Device Attributes Feature descriptor. */ +struct ena_admin_device_attr_feature_desc { + /* word 0 : implementation id */ + uint32_t impl_id; + + /* word 1 : device version */ + uint32_t device_version; + + /* word 2 : bit map of which bits are supported value of 1 + * indicated that this feature is supported and can perform SET/GET + * for it + */ + uint32_t supported_features; + + /* word 3 : */ + uint32_t reserved3; + + /* word 4 : Indicates how many bits are used physical address + * access. + */ + uint32_t phys_addr_width; + + /* word 5 : Indicates how many bits are used virtual address access. */ + uint32_t virt_addr_width; + + /* unicast MAC address (in Network byte order) */ + uint8_t mac_addr[6]; + + uint8_t reserved7[2]; + + /* word 8 : Max supported MTU value */ + uint32_t max_mtu; +}; + +/* ENA Max Queues Feature descriptor. */ +struct ena_admin_queue_feature_desc { + /* word 0 : Max number of submission queues (including LLQs) */ + uint32_t max_sq_num; + + /* word 1 : Max submission queue depth */ + uint32_t max_sq_depth; + + /* word 2 : Max number of completion queues */ + uint32_t max_cq_num; + + /* word 3 : Max completion queue depth */ + uint32_t max_cq_depth; + + /* word 4 : Max number of LLQ submission queues */ + uint32_t max_llq_num; + + /* word 5 : Max submission queue depth of LLQ */ + uint32_t max_llq_depth; + + /* word 6 : Max header size */ + uint32_t max_header_size; + + /* word 7 : */ + /* Maximum Descriptors number, including meta descriptors, allowed + * for a single Tx packet + */ + uint16_t max_packet_tx_descs; + + /* Maximum Descriptors number allowed for a single Rx packet */ + uint16_t max_packet_rx_descs; +}; + +/* ENA MTU Set Feature descriptor. */ +struct ena_admin_set_feature_mtu_desc { + /* word 0 : mtu size including L2 */ + uint32_t mtu; +}; + +/* ENA host attributes Set Feature descriptor. */ +struct ena_admin_set_feature_host_attr_desc { + /* words 0:1 : host OS info base address in OS memory. host info is + * 4KB of physically contiguous + */ + struct ena_common_mem_addr os_info_ba; + + /* words 2:3 : host debug area base address in OS memory. debug + * area must be physically contiguous + */ + struct ena_common_mem_addr debug_ba; + + /* word 4 : debug area size */ + uint32_t debug_area_size; +}; + +/* ENA Interrupt Moderation Get Feature descriptor. */ +struct ena_admin_feature_intr_moder_desc { + /* word 0 : */ + /* interrupt delay granularity in usec */ + uint16_t intr_delay_resolution; + + uint16_t reserved; +}; + +/* ENA Link Get Feature descriptor. */ +struct ena_admin_get_feature_link_desc { + /* word 0 : Link speed in Mb */ + uint32_t speed; + + /* word 1 : supported speeds (bit field of enum ena_admin_link + * types) + */ + uint32_t supported; + + /* word 2 : */ + /* 0 : autoneg - auto negotiation + * 1 : duplex - Full Duplex + * 31:2 : reserved2 + */ + uint32_t flags; +}; + +/* ENA AENQ Feature descriptor. */ +struct ena_admin_feature_aenq_desc { + /* word 0 : bitmask for AENQ groups the device can report */ + uint32_t supported_groups; + + /* word 1 : bitmask for AENQ groups to report */ + uint32_t enabled_groups; +}; + +/* ENA Stateless Offload Feature descriptor. */ +struct ena_admin_feature_offload_desc { + /* word 0 : */ + /* Trasmit side stateless offload + * 0 : TX_L3_csum_ipv4 - IPv4 checksum + * 1 : TX_L4_ipv4_csum_part - TCP/UDP over IPv4 + * checksum, the checksum field should be initialized + * with pseudo header checksum + * 2 : TX_L4_ipv4_csum_full - TCP/UDP over IPv4 + * checksum + * 3 : TX_L4_ipv6_csum_part - TCP/UDP over IPv6 + * checksum, the checksum field should be initialized + * with pseudo header checksum + * 4 : TX_L4_ipv6_csum_full - TCP/UDP over IPv6 + * checksum + * 5 : tso_ipv4 - TCP/IPv4 Segmentation Offloading + * 6 : tso_ipv6 - TCP/IPv6 Segmentation Offloading + * 7 : tso_ecn - TCP Segmentation with ECN + */ + uint32_t tx; + + /* word 1 : */ + /* Receive side supported stateless offload + * 0 : RX_L3_csum_ipv4 - IPv4 checksum + * 1 : RX_L4_ipv4_csum - TCP/UDP/IPv4 checksum + * 2 : RX_L4_ipv6_csum - TCP/UDP/IPv6 checksum + * 3 : RX_hash - Hash calculation + */ + uint32_t rx_supported; + + /* word 2 : */ + /* Receive side enabled stateless offload */ + uint32_t rx_enabled; +}; + +/* hash functions */ +enum ena_admin_hash_functions { + /* Toeplitz hash */ + ENA_ADMIN_TOEPLITZ = 1, + + /* CRC32 hash */ + ENA_ADMIN_CRC32 = 2, +}; + +/* ENA RSS flow hash control buffer structure */ +struct ena_admin_feature_rss_flow_hash_control { + /* word 0 : number of valid keys */ + uint32_t keys_num; + + /* word 1 : */ + uint32_t reserved; + + /* Toeplitz keys */ + uint32_t key[10]; +}; + +/* ENA RSS Flow Hash Function */ +struct ena_admin_feature_rss_flow_hash_function { + /* word 0 : */ + /* supported hash functions + * 7:0 : funcs - supported hash functions (bitmask + * accroding to ena_admin_hash_functions) + */ + uint32_t supported_func; + + /* word 1 : */ + /* selected hash func + * 7:0 : selected_func - selected hash function + * (bitmask accroding to ena_admin_hash_functions) + */ + uint32_t selected_func; + + /* word 2 : initial value */ + uint32_t init_val; +}; + +/* RSS flow hash protocols */ +enum ena_admin_flow_hash_proto { + /* tcp/ipv4 */ + ENA_ADMIN_RSS_TCP4 = 0, + + /* udp/ipv4 */ + ENA_ADMIN_RSS_UDP4 = 1, + + /* tcp/ipv6 */ + ENA_ADMIN_RSS_TCP6 = 2, + + /* udp/ipv6 */ + ENA_ADMIN_RSS_UDP6 = 3, + + /* ipv4 not tcp/udp */ + ENA_ADMIN_RSS_IP4 = 4, + + /* ipv6 not tcp/udp */ + ENA_ADMIN_RSS_IP6 = 5, + + /* fragmented ipv4 */ + ENA_ADMIN_RSS_IP4_FRAG = 6, + + /* not ipv4/6 */ + ENA_ADMIN_RSS_NOT_IP = 7, + + /* max number of protocols */ + ENA_ADMIN_RSS_PROTO_NUM = 16, +}; + +/* RSS flow hash fields */ +enum ena_admin_flow_hash_fields { + /* Ethernet Dest Addr */ + ENA_ADMIN_RSS_L2_DA = 0, + + /* Ethernet Src Addr */ + ENA_ADMIN_RSS_L2_SA = 1, + + /* ipv4/6 Dest Addr */ + ENA_ADMIN_RSS_L3_DA = 2, + + /* ipv4/6 Src Addr */ + ENA_ADMIN_RSS_L3_SA = 5, + + /* tcp/udp Dest Port */ + ENA_ADMIN_RSS_L4_DP = 6, + + /* tcp/udp Src Port */ + ENA_ADMIN_RSS_L4_SP = 7, +}; + +/* hash input fields for flow protocol */ +struct ena_admin_proto_input { + /* word 0 : */ + /* flow hash fields (bitwise according to ena_admin_flow_hash_fields) */ + uint16_t fields; + + /* 0 : inner - for tunneled packet, select the fields + * from inner header + */ + uint16_t flags; +}; + +/* ENA RSS hash control buffer structure */ +struct ena_admin_feature_rss_hash_control { + /* supported input fields */ + struct ena_admin_proto_input supported_fields[ENA_ADMIN_RSS_PROTO_NUM]; + + /* selected input fields */ + struct ena_admin_proto_input selected_fields[ENA_ADMIN_RSS_PROTO_NUM]; + + /* supported input fields for inner header */ + struct ena_admin_proto_input supported_inner_fields[ENA_ADMIN_RSS_PROTO_NUM]; + + /* selected input fields */ + struct ena_admin_proto_input selected_inner_fields[ENA_ADMIN_RSS_PROTO_NUM]; +}; + +/* ENA RSS flow hash input */ +struct ena_admin_feature_rss_flow_hash_input { + /* word 0 : */ + /* supported hash input sorting + * 1 : L3_sort - support swap L3 addresses if DA + * smaller than SA + * 2 : L4_sort - support swap L4 ports if DP smaller + * SP + */ + uint16_t supported_input_sort; + + /* enabled hash input sorting + * 1 : enable_L3_sort - enable swap L3 addresses if + * DA smaller than SA + * 2 : enable_L4_sort - enable swap L4 ports if DP + * smaller than SP + */ + uint16_t enabled_input_sort; +}; + +/* Operating system type */ +enum ena_admin_os_type { + /* Linux OS */ + ENA_ADMIN_OS_LINUX = 1, + + /* Windows OS */ + ENA_ADMIN_OS_WIN = 2, + + /* DPDK OS */ + ENA_ADMIN_OS_DPDK = 3, + + /* FreeBSD OS */ + ENA_ADMIN_OS_FREE_BSD = 4, + + /* PXE OS */ + ENA_ADMIN_OS_PXE = 5, +}; + +/* host info */ +struct ena_admin_host_info { + /* word 0 : OS type defined in enum ena_os_type */ + uint32_t os_type; + + /* os distribution string format */ + uint8_t os_dist_str[128]; + + /* word 33 : OS distribution numeric format */ + uint32_t os_dist; + + /* kernel version string format */ + uint8_t kernel_ver_str[32]; + + /* word 42 : Kernel version numeric format */ + uint32_t kernel_ver; + + /* word 43 : */ + /* driver version + * 7:0 : major - major + * 15:8 : minor - minor + * 23:16 : sub_minor - sub minor + */ + uint32_t driver_version; + + /* features bitmap */ + uint32_t supported_network_features[4]; +}; + +/* ENA RSS indirection table entry */ +struct ena_admin_rss_ind_table_entry { + /* word 0 : */ + /* cq identifier */ + uint16_t cq_idx; + + uint16_t reserved; +}; + +/* ENA RSS indirection table */ +struct ena_admin_feature_rss_ind_table { + /* word 0 : */ + /* min supported table size (2^min_size) */ + uint16_t min_size; + + /* max supported table size (2^max_size) */ + uint16_t max_size; + + /* word 1 : */ + /* table size (2^size) */ + uint16_t size; + + uint16_t reserved; + + /* word 2 : index of the inline entry. 0xFFFFFFFF means invalid */ + uint32_t inline_index; + + /* words 3 : used for updating single entry, ignored when setting + * the entire table through the control buffer. + */ + struct ena_admin_rss_ind_table_entry inline_entry; +}; + +/* ENA Get Feature command */ +struct ena_admin_get_feat_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* words 1:3 : points to control buffer (direct or indirect, + * chained if needed) + */ + struct ena_admin_ctrl_buff_info control_buffer; + + /* words 4 : */ + struct ena_admin_get_set_feature_common_desc feat_common; + + /* words 5:15 : */ + union { + /* raw words */ + uint32_t raw[11]; + } u; +}; + +/* ENA Get Feature command response */ +struct ena_admin_get_feat_resp { + /* words 0:1 : */ + struct ena_admin_acq_common_desc acq_common_desc; + + /* words 2:15 : */ + union { + /* raw words */ + uint32_t raw[14]; + + /* words 2:10 : Get Device Attributes */ + struct ena_admin_device_attr_feature_desc dev_attr; + + /* words 2:5 : Max queues num */ + struct ena_admin_queue_feature_desc max_queue; + + /* words 2:3 : AENQ configuration */ + struct ena_admin_feature_aenq_desc aenq; + + /* words 2:4 : Get Link configuration */ + struct ena_admin_get_feature_link_desc link; + + /* words 2:4 : offload configuration */ + struct ena_admin_feature_offload_desc offload; + + /* words 2:4 : rss flow hash function */ + struct ena_admin_feature_rss_flow_hash_function flow_hash_func; + + /* words 2 : rss flow hash input */ + struct ena_admin_feature_rss_flow_hash_input flow_hash_input; + + /* words 2:3 : rss indirection table */ + struct ena_admin_feature_rss_ind_table ind_table; + + /* words 2 : interrupt moderation configuration */ + struct ena_admin_feature_intr_moder_desc intr_moderation; + } u; +}; + +/* ENA Set Feature command */ +struct ena_admin_set_feat_cmd { + /* words 0 : */ + struct ena_admin_aq_common_desc aq_common_descriptor; + + /* words 1:3 : points to control buffer (direct or indirect, + * chained if needed) + */ + struct ena_admin_ctrl_buff_info control_buffer; + + /* words 4 : */ + struct ena_admin_get_set_feature_common_desc feat_common; + + /* words 5:15 : */ + union { + /* raw words */ + uint32_t raw[11]; + + /* words 5 : mtu size */ + struct ena_admin_set_feature_mtu_desc mtu; + + /* words 5:7 : host attributes */ + struct ena_admin_set_feature_host_attr_desc host_attr; + + /* words 5:6 : AENQ configuration */ + struct ena_admin_feature_aenq_desc aenq; + + /* words 5:7 : rss flow hash function */ + struct ena_admin_feature_rss_flow_hash_function flow_hash_func; + + /* words 5 : rss flow hash input */ + struct ena_admin_feature_rss_flow_hash_input flow_hash_input; + + /* words 5:6 : rss indirection table */ + struct ena_admin_feature_rss_ind_table ind_table; + } u; +}; + +/* ENA Set Feature command response */ +struct ena_admin_set_feat_resp { + /* words 0:1 : */ + struct ena_admin_acq_common_desc acq_common_desc; + + /* words 2:15 : */ + union { + /* raw words */ + uint32_t raw[14]; + } u; +}; + +/* ENA Asynchronous Event Notification Queue descriptor. */ +struct ena_admin_aenq_common_desc { + /* word 0 : */ + uint16_t group; + + uint16_t syndrom; + + /* word 1 : */ + /* 0 : phase */ + uint8_t flags; + + uint8_t reserved1[3]; + + /* word 2 : Timestamp LSB */ + uint32_t timestamp_low; + + /* word 3 : Timestamp MSB */ + uint32_t timestamp_high; +}; + +/* asynchronous event notification groups */ +enum ena_admin_aenq_group { + /* Link State Change */ + ENA_ADMIN_LINK_CHANGE = 0, + + ENA_ADMIN_FATAL_ERROR = 1, + + ENA_ADMIN_WARNING = 2, + + ENA_ADMIN_NOTIFICATION = 3, + + ENA_ADMIN_KEEP_ALIVE = 4, + + ENA_ADMIN_AENQ_GROUPS_NUM = 5, +}; + +/* syndorm of AENQ notification group */ +enum ena_admin_aenq_notification_syndrom { + ENA_ADMIN_SUSPEND = 0, + + ENA_ADMIN_RESUME = 1, +}; + +/* ENA Asynchronous Event Notification generic descriptor. */ +struct ena_admin_aenq_entry { + /* words 0:3 : */ + struct ena_admin_aenq_common_desc aenq_common_desc; + + /* command specific inline data */ + uint32_t inline_data_w4[12]; +}; + +/* ENA Asynchronous Event Notification Queue Link Change descriptor. */ +struct ena_admin_aenq_link_change_desc { + /* words 0:3 : */ + struct ena_admin_aenq_common_desc aenq_common_desc; + + /* word 4 : */ + /* 0 : link_status */ + uint32_t flags; +}; + +/* ENA MMIO Readless response interface */ +struct ena_admin_ena_mmio_req_read_less_resp { + /* word 0 : */ + /* request id */ + uint16_t req_id; + + /* register offset */ + uint16_t reg_off; + + /* word 1 : value is valid when poll is cleared */ + uint32_t reg_val; +}; + +/* aq_common_desc */ +#define ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK GENMASK(11, 0) +#define ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK BIT(0) +#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT 1 +#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK BIT(1) +#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT 2 +#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK BIT(2) + +/* sq */ +#define ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT 5 +#define ENA_ADMIN_SQ_SQ_DIRECTION_MASK GENMASK(7, 5) + +/* acq_common_desc */ +#define ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK GENMASK(11, 0) +#define ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK BIT(0) + +/* aq_create_sq_cmd */ +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT 5 +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK GENMASK(7, 5) +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK GENMASK(3, 0) +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT 4 +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK GENMASK(6, 4) +#define ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK BIT(0) + +/* aq_create_cq_cmd */ +#define ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT 5 +#define ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK BIT(5) +#define ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK GENMASK(4, 0) + +/* get_set_feature_common_desc */ +#define ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK GENMASK(1, 0) + +/* get_feature_link_desc */ +#define ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK BIT(0) +#define ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT 1 +#define ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK BIT(1) + +/* feature_offload_desc */ +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK BIT(0) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT 1 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK BIT(1) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT 2 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK BIT(2) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT 3 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK BIT(3) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT 4 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK BIT(4) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT 5 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK BIT(5) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT 6 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK BIT(6) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT 7 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK BIT(7) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK BIT(0) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT 1 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK BIT(1) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT 2 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK BIT(2) +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_SHIFT 3 +#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK BIT(3) + +/* feature_rss_flow_hash_function */ +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK GENMASK(7, 0) +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK \ + GENMASK(7, 0) + +/* proto_input */ +#define ENA_ADMIN_PROTO_INPUT_INNER_MASK BIT(0) + +/* feature_rss_flow_hash_input */ +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT 1 +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK BIT(1) +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT 2 +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK BIT(2) +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT 1 +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK BIT(1) +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT 2 +#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK BIT(2) + +/* host_info */ +#define ENA_ADMIN_HOST_INFO_MAJOR_MASK GENMASK(7, 0) +#define ENA_ADMIN_HOST_INFO_MINOR_SHIFT 8 +#define ENA_ADMIN_HOST_INFO_MINOR_MASK GENMASK(15, 8) +#define ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT 16 +#define ENA_ADMIN_HOST_INFO_SUB_MINOR_MASK GENMASK(23, 16) + +/* aenq_common_desc */ +#define ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK BIT(0) + +/* aenq_link_change_desc */ +#define ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK BIT(0) + +#if !defined(ENA_DEFS_LINUX_MAINLINE) +static inline uint16_t +get_ena_admin_aq_common_desc_command_id( + const struct ena_admin_aq_common_desc *p) +{ + return p->command_id & ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK; +} + +static inline void +set_ena_admin_aq_common_desc_command_id(struct ena_admin_aq_common_desc *p, + uint16_t val) +{ + p->command_id |= val & ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK; +} + +static inline uint8_t +get_ena_admin_aq_common_desc_phase(const struct ena_admin_aq_common_desc *p) +{ + return p->flags & ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK; +} + +static inline void +set_ena_admin_aq_common_desc_phase(struct ena_admin_aq_common_desc *p, + uint8_t val) +{ + p->flags |= val & ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK; +} + +static inline uint8_t +get_ena_admin_aq_common_desc_ctrl_data( + const struct ena_admin_aq_common_desc *p) +{ + return (p->flags & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK) >> + ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT; +} + +static inline void +set_ena_admin_aq_common_desc_ctrl_data(struct ena_admin_aq_common_desc *p, + uint8_t val) +{ + p->flags |= (val << ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT) + & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK; +} + +static inline uint8_t +get_ena_admin_aq_common_desc_ctrl_data_indirect( + const struct ena_admin_aq_common_desc *p) +{ + return (p->flags & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK) + >> ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT; +} + +static inline void +set_ena_admin_aq_common_desc_ctrl_data_indirect( + struct ena_admin_aq_common_desc *p, + uint8_t val) +{ + p->flags |= (val << ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT) + & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK; +} + +static inline uint8_t +get_ena_admin_sq_sq_direction(const struct ena_admin_sq *p) +{ + return (p->sq_identity & ENA_ADMIN_SQ_SQ_DIRECTION_MASK) + >> ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT; +} + +static inline void +set_ena_admin_sq_sq_direction(struct ena_admin_sq *p, uint8_t val) +{ + p->sq_identity |= (val << ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT) & + ENA_ADMIN_SQ_SQ_DIRECTION_MASK; +} + +static inline uint16_t +get_ena_admin_acq_common_desc_command_id( + const struct ena_admin_acq_common_desc *p) +{ + return p->command & ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK; +} + +static inline void +set_ena_admin_acq_common_desc_command_id(struct ena_admin_acq_common_desc *p, + uint16_t val) +{ + p->command |= val & ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK; +} + +static inline uint8_t +get_ena_admin_acq_common_desc_phase(const struct ena_admin_acq_common_desc *p) +{ + return p->flags & ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK; +} + +static inline void +set_ena_admin_acq_common_desc_phase(struct ena_admin_acq_common_desc *p, + uint8_t val) +{ + p->flags |= val & ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_sq_cmd_sq_direction( + const struct ena_admin_aq_create_sq_cmd *p) +{ + return (p->sq_identity & ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK) + >> ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT; +} + +static inline void +set_ena_admin_aq_create_sq_cmd_sq_direction( + struct ena_admin_aq_create_sq_cmd *p, + uint8_t val) +{ + p->sq_identity |= (val << + ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT) + & ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_sq_cmd_placement_policy( + const struct ena_admin_aq_create_sq_cmd *p) +{ + return p->sq_caps_2 & ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK; +} + +static inline void +set_ena_admin_aq_create_sq_cmd_placement_policy( + struct ena_admin_aq_create_sq_cmd *p, + uint8_t val) +{ + p->sq_caps_2 |= val & ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_sq_cmd_completion_policy( + const struct ena_admin_aq_create_sq_cmd *p) +{ + return (p->sq_caps_2 + & ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK) + >> ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT; +} + +static inline void +set_ena_admin_aq_create_sq_cmd_completion_policy( + struct ena_admin_aq_create_sq_cmd *p, + uint8_t val) +{ + p->sq_caps_2 |= + (val << ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT) + & ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_sq_cmd_is_physically_contiguous( + const struct ena_admin_aq_create_sq_cmd *p) +{ + return p->sq_caps_3 & + ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK; +} + +static inline void +set_ena_admin_aq_create_sq_cmd_is_physically_contiguous( + struct ena_admin_aq_create_sq_cmd *p, + uint8_t val) +{ + p->sq_caps_3 |= val & + ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_cq_cmd_interrupt_mode_enabled( + const struct ena_admin_aq_create_cq_cmd *p) +{ + return (p->cq_caps_1 & + ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK) + >> ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT; +} + +static inline void +set_ena_admin_aq_create_cq_cmd_interrupt_mode_enabled( + struct ena_admin_aq_create_cq_cmd *p, + uint8_t val) +{ + p->cq_caps_1 |= + (val << ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT) + & ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK; +} + +static inline uint8_t +get_ena_admin_aq_create_cq_cmd_cq_entry_size_words( + const struct ena_admin_aq_create_cq_cmd *p) +{ + return p->cq_caps_2 + & ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK; +} + +static inline void +set_ena_admin_aq_create_cq_cmd_cq_entry_size_words( + struct ena_admin_aq_create_cq_cmd *p, + uint8_t val) +{ + p->cq_caps_2 |= + val & ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK; +} + +static inline uint8_t +get_ena_admin_get_set_feature_common_desc_select( + const struct ena_admin_get_set_feature_common_desc *p) +{ + return p->flags & ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK; +} + +static inline void +set_ena_admin_get_set_feature_common_desc_select( + struct ena_admin_get_set_feature_common_desc *p, + uint8_t val) +{ + p->flags |= val & ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK; +} + +static inline uint32_t +get_ena_admin_get_feature_link_desc_autoneg( + const struct ena_admin_get_feature_link_desc *p) +{ + return p->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK; +} + +static inline void +set_ena_admin_get_feature_link_desc_autoneg( + struct ena_admin_get_feature_link_desc *p, + uint32_t val) +{ + p->flags |= val & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK; +} + +static inline uint32_t +get_ena_admin_get_feature_link_desc_duplex( + const struct ena_admin_get_feature_link_desc *p) +{ + return (p->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK) + >> ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT; +} + +static inline void +set_ena_admin_get_feature_link_desc_duplex( + struct ena_admin_get_feature_link_desc *p, + uint32_t val) +{ + p->flags |= (val << ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT) + & ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_TX_L3_csum_ipv4( + const struct ena_admin_feature_offload_desc *p) +{ + return p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK; +} + +static inline void +set_ena_admin_feature_offload_desc_TX_L3_csum_ipv4( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= val & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_part( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_part( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_full( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_full( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_part( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_part( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_full( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_full( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_tso_ipv4( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_tso_ipv4( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_tso_ipv6( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_tso_ipv6( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_tso_ecn( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_tso_ecn( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_RX_L3_csum_ipv4( + const struct ena_admin_feature_offload_desc *p) +{ + return p->rx_supported & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK; +} + +static inline void +set_ena_admin_feature_offload_desc_RX_L3_csum_ipv4( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->rx_supported |= + val & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_RX_L4_ipv4_csum( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->rx_supported & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_RX_L4_ipv4_csum( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->rx_supported |= + (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_RX_L4_ipv6_csum( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->rx_supported & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_RX_L4_ipv6_csum( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->rx_supported |= + (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK; +} + +static inline uint32_t +get_ena_admin_feature_offload_desc_RX_hash( + const struct ena_admin_feature_offload_desc *p) +{ + return (p->rx_supported & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK) + >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_SHIFT; +} + +static inline void +set_ena_admin_feature_offload_desc_RX_hash( + struct ena_admin_feature_offload_desc *p, + uint32_t val) +{ + p->rx_supported |= + (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_SHIFT) + & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK; +} + +static inline uint32_t +get_ena_admin_feature_rss_flow_hash_function_funcs( + const struct ena_admin_feature_rss_flow_hash_function *p) +{ + return p->supported_func & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_function_funcs( + struct ena_admin_feature_rss_flow_hash_function *p, + uint32_t val) +{ + p->supported_func |= + val & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK; +} + +static inline uint32_t +get_ena_admin_feature_rss_flow_hash_function_selected_func( + const struct ena_admin_feature_rss_flow_hash_function *p) +{ + return p->selected_func & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_function_selected_func( + struct ena_admin_feature_rss_flow_hash_function *p, + uint32_t val) +{ + p->selected_func |= + val & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK; +} + +static inline uint16_t +get_ena_admin_proto_input_inner(const struct ena_admin_proto_input *p) +{ + return p->flags & ENA_ADMIN_PROTO_INPUT_INNER_MASK; +} + +static inline void +set_ena_admin_proto_input_inner(struct ena_admin_proto_input *p, uint16_t val) +{ + p->flags |= val & ENA_ADMIN_PROTO_INPUT_INNER_MASK; +} + +static inline uint16_t +get_ena_admin_feature_rss_flow_hash_input_L3_sort( + const struct ena_admin_feature_rss_flow_hash_input *p) +{ + return (p->supported_input_sort & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK) + >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_input_L3_sort( + struct ena_admin_feature_rss_flow_hash_input *p, + uint16_t val) +{ + p->supported_input_sort |= + (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT) + & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK; +} + +static inline uint16_t +get_ena_admin_feature_rss_flow_hash_input_L4_sort( + const struct ena_admin_feature_rss_flow_hash_input *p) +{ + return (p->supported_input_sort & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK) + >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_input_L4_sort( + struct ena_admin_feature_rss_flow_hash_input *p, + uint16_t val) +{ + p->supported_input_sort |= + (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT) + & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK; +} + +static inline uint16_t +get_ena_admin_feature_rss_flow_hash_input_enable_L3_sort( + const struct ena_admin_feature_rss_flow_hash_input *p) +{ + return (p->enabled_input_sort & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK) + >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_input_enable_L3_sort( + struct ena_admin_feature_rss_flow_hash_input *p, + uint16_t val) +{ + p->enabled_input_sort |= + (val << + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT) + & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK; +} + +static inline uint16_t +get_ena_admin_feature_rss_flow_hash_input_enable_L4_sort( + const struct ena_admin_feature_rss_flow_hash_input *p) +{ + return (p->enabled_input_sort & + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK) + >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT; +} + +static inline void +set_ena_admin_feature_rss_flow_hash_input_enable_L4_sort( + struct ena_admin_feature_rss_flow_hash_input *p, + uint16_t val) +{ + p->enabled_input_sort |= + (val << + ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT) + & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK; +} + +static inline uint32_t +get_ena_admin_host_info_major(const struct ena_admin_host_info *p) +{ + return p->driver_version & ENA_ADMIN_HOST_INFO_MAJOR_MASK; +} + +static inline void +set_ena_admin_host_info_major(struct ena_admin_host_info *p, uint32_t val) +{ + p->driver_version |= val & ENA_ADMIN_HOST_INFO_MAJOR_MASK; +} + +static inline uint32_t +get_ena_admin_host_info_minor(const struct ena_admin_host_info *p) +{ + return (p->driver_version & ENA_ADMIN_HOST_INFO_MINOR_MASK) + >> ENA_ADMIN_HOST_INFO_MINOR_SHIFT; +} + +static inline void +set_ena_admin_host_info_minor(struct ena_admin_host_info *p, uint32_t val) +{ + p->driver_version |= (val << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) + & ENA_ADMIN_HOST_INFO_MINOR_MASK; +} + +static inline uint32_t +get_ena_admin_host_info_sub_minor(const struct ena_admin_host_info *p) +{ + return (p->driver_version & ENA_ADMIN_HOST_INFO_SUB_MINOR_MASK) + >> ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT; +} + +static inline void +set_ena_admin_host_info_sub_minor(struct ena_admin_host_info *p, uint32_t val) +{ + p->driver_version |= (val << ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT) + & ENA_ADMIN_HOST_INFO_SUB_MINOR_MASK; +} + +static inline uint8_t +get_ena_admin_aenq_common_desc_phase( + const struct ena_admin_aenq_common_desc *p) +{ + return p->flags & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK; +} + +static inline void +set_ena_admin_aenq_common_desc_phase( + struct ena_admin_aenq_common_desc *p, + uint8_t val) +{ + p->flags |= val & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK; +} + +static inline uint32_t +get_ena_admin_aenq_link_change_desc_link_status( + const struct ena_admin_aenq_link_change_desc *p) +{ + return p->flags & ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK; +} + +static inline void +set_ena_admin_aenq_link_change_desc_link_status( + struct ena_admin_aenq_link_change_desc *p, + uint32_t val) +{ + p->flags |= val & ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK; +} + +#endif /* !defined(ENA_DEFS_LINUX_MAINLINE) */ +#endif /*_ENA_ADMIN_H_ */ diff --git a/drivers/net/ena/base/ena_defs/ena_common_defs.h b/drivers/net/ena/base/ena_defs/ena_common_defs.h new file mode 100644 index 00000000..95e0f389 --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_common_defs.h @@ -0,0 +1,54 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_COMMON_H_ +#define _ENA_COMMON_H_ + +/* spec version */ +#define ENA_COMMON_SPEC_VERSION_MAJOR 0 /* spec version major */ +#define ENA_COMMON_SPEC_VERSION_MINOR 10 /* spec version minor */ + +/* ENA operates with 48-bit memory addresses. ena_mem_addr_t */ +struct ena_common_mem_addr { + /* word 0 : low 32 bit of the memory address */ + uint32_t mem_addr_low; + + /* word 1 : */ + /* high 16 bits of the memory address */ + uint16_t mem_addr_high; + + /* MBZ */ + uint16_t reserved16; +}; + +#endif /*_ENA_COMMON_H_ */ diff --git a/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h b/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h new file mode 100644 index 00000000..a547033d --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h @@ -0,0 +1,1488 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_ETH_IO_H_ +#define _ENA_ETH_IO_H_ + +/* Layer 3 protocol index */ +enum ena_eth_io_l3_proto_index { + ENA_ETH_IO_L3_PROTO_UNKNOWN = 0, + + ENA_ETH_IO_L3_PROTO_IPV4 = 8, + + ENA_ETH_IO_L3_PROTO_IPV6 = 11, + + ENA_ETH_IO_L3_PROTO_FCOE = 21, + + ENA_ETH_IO_L3_PROTO_ROCE = 22, +}; + +/* Layer 4 protocol index */ +enum ena_eth_io_l4_proto_index { + ENA_ETH_IO_L4_PROTO_UNKNOWN = 0, + + ENA_ETH_IO_L4_PROTO_TCP = 12, + + ENA_ETH_IO_L4_PROTO_UDP = 13, + + ENA_ETH_IO_L4_PROTO_ROUTEABLE_ROCE = 23, +}; + +/* ENA IO Queue Tx descriptor */ +struct ena_eth_io_tx_desc { + /* word 0 : */ + /* length, request id and control flags + * 15:0 : length - Buffer length in bytes, must + * include any packet trailers that the ENA supposed + * to update like End-to-End CRC, Authentication GMAC + * etc. This length must not include the + * 'Push_Buffer' length. This length must not include + * the 4-byte added in the end for 802.3 Ethernet FCS + * 21:16 : req_id_hi - Request ID[15:10] + * 22 : reserved22 - MBZ + * 23 : meta_desc - MBZ + * 24 : phase + * 25 : reserved1 - MBZ + * 26 : first - Indicates first descriptor in + * transaction + * 27 : last - Indicates last descriptor in + * transaction + * 28 : comp_req - Indicates whether completion + * should be posted, after packet is transmitted. + * Valid only for first descriptor + * 30:29 : reserved29 - MBZ + * 31 : reserved31 - MBZ + */ + uint32_t len_ctrl; + + /* word 1 : */ + /* ethernet control + * 3:0 : l3_proto_idx - L3 protocol, if + * tunnel_ctrl[0] is set, then this is the inner + * packet L3. This field required when + * l3_csum_en,l3_csum or tso_en are set. + * 4 : DF - IPv4 DF, must be 0 if packet is IPv4 and + * DF flags of the IPv4 header is 0. Otherwise must + * be set to 1 + * 6:5 : reserved5 + * 7 : tso_en - Enable TSO, For TCP only. For packets + * with tunnel (tunnel_ctrl[0]=1), then the inner + * packet will be segmented while the outer tunnel is + * duplicated + * 12:8 : l4_proto_idx - L4 protocol, if + * tunnel_ctrl[0] is set, then this is the inner + * packet L4. This field need to be set when + * l4_csum_en or tso_en are set. + * 13 : l3_csum_en - enable IPv4 header checksum. if + * tunnel_ctrl[0] is set, then this will enable + * checksum for the inner packet IPv4 + * 14 : l4_csum_en - enable TCP/UDP checksum. if + * tunnel_ctrl[0] is set, then this will enable + * checksum on the inner packet TCP/UDP checksum + * 15 : ethernet_fcs_dis - when set, the controller + * will not append the 802.3 Ethernet Frame Check + * Sequence to the packet + * 16 : reserved16 + * 17 : l4_csum_partial - L4 partial checksum. when + * set to 0, the ENA calculates the L4 checksum, + * where the Destination Address required for the + * TCP/UDP pseudo-header is taken from the actual + * packet L3 header. when set to 1, the ENA doesn't + * calculate the sum of the pseudo-header, instead, + * the checksum field of the L4 is used instead. When + * TSO enabled, the checksum of the pseudo-header + * must not include the tcp length field. L4 partial + * checksum should be used for IPv6 packet that + * contains Routing Headers. + * 20:18 : tunnel_ctrl - Bit 0: tunneling exists, Bit + * 1: tunnel packet actually uses UDP as L4, Bit 2: + * tunnel packet L3 protocol: 0: IPv4 1: IPv6 + * 21 : ts_req - Indicates that the packet is IEEE + * 1588v2 packet requiring the timestamp + * 31:22 : req_id_lo - Request ID[9:0] + */ + uint32_t meta_ctrl; + + /* word 2 : Buffer address bits[31:0] */ + uint32_t buff_addr_lo; + + /* word 3 : */ + /* address high and header size + * 15:0 : addr_hi - Buffer Pointer[47:32] + * 23:16 : reserved16_w2 + * 31:24 : header_length - Header length. For Low + * Latency Queues, this fields indicates the number + * of bytes written to the headers' memory. For + * normal queues, if packet is TCP or UDP, and longer + * than max_header_size, then this field should be + * set to the sum of L4 header offset and L4 header + * size(without options), otherwise, this field + * should be set to 0. For both modes, this field + * must not exceed the max_header_size. + * max_header_size value is reported by the Max + * Queues Feature descriptor + */ + uint32_t buff_addr_hi_hdr_sz; +}; + +/* ENA IO Queue Tx Meta descriptor */ +struct ena_eth_io_tx_meta_desc { + /* word 0 : */ + /* length, request id and control flags + * 9:0 : req_id_lo - Request ID[9:0] + * 11:10 : outr_l3_off_hi - valid if + * tunnel_ctrl[0]=1. bits[4:3] of outer packet L3 + * offset + * 12 : reserved12 - MBZ + * 13 : reserved13 - MBZ + * 14 : ext_valid - if set, offset fields in Word2 + * are valid Also MSS High in Word 0 and Outer L3 + * Offset High in WORD 0 and bits [31:24] in Word 3 + * 15 : word3_valid - If set Crypto Info[23:0] of + * Word 3 is valid + * 19:16 : mss_hi_ptp + * 20 : eth_meta_type - 0: Tx Metadata Descriptor, 1: + * Extended Metadata Descriptor + * 21 : meta_store - Store extended metadata in queue + * cache + * 22 : reserved22 - MBZ + * 23 : meta_desc - MBO + * 24 : phase + * 25 : reserved25 - MBZ + * 26 : first - Indicates first descriptor in + * transaction + * 27 : last - Indicates last descriptor in + * transaction + * 28 : comp_req - Indicates whether completion + * should be posted, after packet is transmitted. + * Valid only for first descriptor + * 30:29 : reserved29 - MBZ + * 31 : reserved31 - MBZ + */ + uint32_t len_ctrl; + + /* word 1 : */ + /* word 1 + * 5:0 : req_id_hi + * 31:6 : reserved6 - MBZ + */ + uint32_t word1; + + /* word 2 : */ + /* word 2 + * 7:0 : l3_hdr_len - the header length L3 IP header. + * if tunnel_ctrl[0]=1, this is the IP header length + * of the inner packet. FIXME - check if includes IP + * options hdr_len + * 15:8 : l3_hdr_off - the offset of the first byte + * in the L3 header from the beginning of the to-be + * transmitted packet. if tunnel_ctrl[0]=1, this is + * the offset the L3 header of the inner packet + * 21:16 : l4_hdr_len_in_words - counts the L4 header + * length in words. there is an explicit assumption + * that L4 header appears right after L3 header and + * L4 offset is based on l3_hdr_off+l3_hdr_len FIXME + * - pls confirm + * 31:22 : mss_lo + */ + uint32_t word2; + + /* word 3 : */ + /* word 3 + * 23:0 : crypto_info + * 28:24 : outr_l3_hdr_len_words - valid if + * tunnel_ctrl[0]=1. Counts in words + * 31:29 : outr_l3_off_lo - valid if + * tunnel_ctrl[0]=1. bits[2:0] of outer packet L3 + * offset. Counts the offset of the tunnel IP header + * from beginning of the packet. NOTE: if the tunnel + * header requires CRC or checksum, it is expected to + * be done by the driver as it is not done by the HW + */ + uint32_t word3; +}; + +/* ENA IO Queue Tx completions descriptor */ +struct ena_eth_io_tx_cdesc { + /* word 0 : */ + /* Request ID[15:0] */ + uint16_t req_id; + + uint8_t status; + + /* flags + * 0 : phase + * 7:1 : reserved1 + */ + uint8_t flags; + + /* word 1 : */ + uint16_t sub_qid; + + /* indicates location of submission queue head */ + uint16_t sq_head_idx; +}; + +/* ENA IO Queue Rx descriptor */ +struct ena_eth_io_rx_desc { + /* word 0 : */ + /* In bytes. 0 means 64KB */ + uint16_t length; + + /* MBZ */ + uint8_t reserved2; + + /* control flags + * 0 : phase + * 1 : reserved1 - MBZ + * 2 : first - Indicates first descriptor in + * transaction + * 3 : last - Indicates last descriptor in transaction + * 4 : comp_req + * 5 : reserved5 - MBO + * 7:6 : reserved6 - MBZ + */ + uint8_t ctrl; + + /* word 1 : */ + uint16_t req_id; + + /* MBZ */ + uint16_t reserved6; + + /* word 2 : Buffer address bits[31:0] */ + uint32_t buff_addr_lo; + + /* word 3 : */ + /* Buffer Address bits[47:16] */ + uint16_t buff_addr_hi; + + /* MBZ */ + uint16_t reserved16_w3; +}; + +/* ENA IO Queue Rx Completion Base Descriptor (4-word format). Note: all + * ethernet parsing information are valid only when last=1 + */ +struct ena_eth_io_rx_cdesc_base { + /* word 0 : */ + /* 4:0 : l3_proto_idx - L3 protocol index + * 6:5 : src_vlan_cnt - Source VLAN count + * 7 : tunnel - Tunnel exists + * 12:8 : l4_proto_idx - L4 protocol index + * 13 : l3_csum_err - when set, either the L3 + * checksum error detected, or, the controller didn't + * validate the checksum, If tunnel exists, this + * result is for the inner packet. This bit is valid + * only when l3_proto_idx indicates IPv4 packet + * 14 : l4_csum_err - when set, either the L4 + * checksum error detected, or, the controller didn't + * validate the checksum. If tunnel exists, this + * result is for the inner packet. This bit is valid + * only when l4_proto_idx indicates TCP/UDP packet, + * and, ipv4_frag is not set + * 15 : ipv4_frag - Indicates IPv4 fragmented packet + * 17:16 : reserved16 + * 19:18 : reserved18 + * 20 : secured_pkt - Set if packet was handled by + * inline crypto engine + * 22:21 : crypto_status - bit 0 secured direction: + * 0: decryption, 1: encryption. bit 1 reserved + * 23 : reserved23 + * 24 : phase + * 25 : l3_csum2 - second checksum engine result + * 26 : first - Indicates first descriptor in + * transaction + * 27 : last - Indicates last descriptor in + * transaction + * 28 : inr_l4_csum - TCP/UDP checksum results for + * inner packet + * 29 : reserved29 + * 30 : buffer - 0: Metadata descriptor. 1: Buffer + * Descriptor was used + * 31 : reserved31 + */ + uint32_t status; + + /* word 1 : */ + uint16_t length; + + uint16_t req_id; + + /* word 2 : 32-bit hash result */ + uint32_t hash; + + /* word 3 : */ + /* submission queue number */ + uint16_t sub_qid; + + uint16_t reserved; +}; + +/* ENA IO Queue Rx Completion Descriptor (8-word format) */ +struct ena_eth_io_rx_cdesc_ext { + /* words 0:3 : Rx Completion Extended */ + struct ena_eth_io_rx_cdesc_base base; + + /* word 4 : Completed Buffer address bits[31:0] */ + uint32_t buff_addr_lo; + + /* word 5 : */ + /* the buffer address used bits[47:32] */ + uint16_t buff_addr_hi; + + uint16_t reserved16; + + /* word 6 : Reserved */ + uint32_t reserved_w6; + + /* word 7 : Reserved */ + uint32_t reserved_w7; +}; + +/* ENA Interrupt Unmask Register */ +struct ena_eth_io_intr_reg { + /* word 0 : */ + /* 14:0 : rx_intr_delay - rx interrupt delay value + * 29:15 : tx_intr_delay - tx interrupt delay value + * 30 : intr_unmask - if set, unmasks interrupt + * 31 : reserved + */ + uint32_t intr_control; +}; + +/* tx_desc */ +#define ENA_ETH_IO_TX_DESC_LENGTH_MASK GENMASK(15, 0) +#define ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT 16 +#define ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK GENMASK(21, 16) +#define ENA_ETH_IO_TX_DESC_META_DESC_SHIFT 23 +#define ENA_ETH_IO_TX_DESC_META_DESC_MASK BIT(23) +#define ENA_ETH_IO_TX_DESC_PHASE_SHIFT 24 +#define ENA_ETH_IO_TX_DESC_PHASE_MASK BIT(24) +#define ENA_ETH_IO_TX_DESC_FIRST_SHIFT 26 +#define ENA_ETH_IO_TX_DESC_FIRST_MASK BIT(26) +#define ENA_ETH_IO_TX_DESC_LAST_SHIFT 27 +#define ENA_ETH_IO_TX_DESC_LAST_MASK BIT(27) +#define ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT 28 +#define ENA_ETH_IO_TX_DESC_COMP_REQ_MASK BIT(28) +#define ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK GENMASK(3, 0) +#define ENA_ETH_IO_TX_DESC_DF_SHIFT 4 +#define ENA_ETH_IO_TX_DESC_DF_MASK BIT(4) +#define ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT 7 +#define ENA_ETH_IO_TX_DESC_TSO_EN_MASK BIT(7) +#define ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT 8 +#define ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK GENMASK(12, 8) +#define ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT 13 +#define ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK BIT(13) +#define ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT 14 +#define ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK BIT(14) +#define ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT 15 +#define ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK BIT(15) +#define ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT 17 +#define ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK BIT(17) +#define ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT 18 +#define ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK GENMASK(20, 18) +#define ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT 21 +#define ENA_ETH_IO_TX_DESC_TS_REQ_MASK BIT(21) +#define ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT 22 +#define ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK GENMASK(31, 22) +#define ENA_ETH_IO_TX_DESC_ADDR_HI_MASK GENMASK(15, 0) +#define ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT 24 +#define ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK GENMASK(31, 24) + +/* tx_meta_desc */ +#define ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK GENMASK(9, 0) +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT 10 +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK GENMASK(11, 10) +#define ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT 14 +#define ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK BIT(14) +#define ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT 15 +#define ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK BIT(15) +#define ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT 16 +#define ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK GENMASK(19, 16) +#define ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT 20 +#define ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK BIT(20) +#define ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT 21 +#define ENA_ETH_IO_TX_META_DESC_META_STORE_MASK BIT(21) +#define ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT 23 +#define ENA_ETH_IO_TX_META_DESC_META_DESC_MASK BIT(23) +#define ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT 24 +#define ENA_ETH_IO_TX_META_DESC_PHASE_MASK BIT(24) +#define ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT 26 +#define ENA_ETH_IO_TX_META_DESC_FIRST_MASK BIT(26) +#define ENA_ETH_IO_TX_META_DESC_LAST_SHIFT 27 +#define ENA_ETH_IO_TX_META_DESC_LAST_MASK BIT(27) +#define ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT 28 +#define ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK BIT(28) +#define ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK GENMASK(5, 0) +#define ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK GENMASK(7, 0) +#define ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT 8 +#define ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK GENMASK(15, 8) +#define ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT 16 +#define ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK GENMASK(21, 16) +#define ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT 22 +#define ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK GENMASK(31, 22) +#define ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK GENMASK(23, 0) +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT 24 +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK GENMASK(28, 24) +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT 29 +#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK GENMASK(31, 29) + +/* tx_cdesc */ +#define ENA_ETH_IO_TX_CDESC_PHASE_MASK BIT(0) + +/* rx_desc */ +#define ENA_ETH_IO_RX_DESC_PHASE_MASK BIT(0) +#define ENA_ETH_IO_RX_DESC_FIRST_SHIFT 2 +#define ENA_ETH_IO_RX_DESC_FIRST_MASK BIT(2) +#define ENA_ETH_IO_RX_DESC_LAST_SHIFT 3 +#define ENA_ETH_IO_RX_DESC_LAST_MASK BIT(3) +#define ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT 4 +#define ENA_ETH_IO_RX_DESC_COMP_REQ_MASK BIT(4) + +/* rx_cdesc_base */ +#define ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK GENMASK(4, 0) +#define ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT 5 +#define ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK GENMASK(6, 5) +#define ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT 7 +#define ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK BIT(7) +#define ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT 8 +#define ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK GENMASK(12, 8) +#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT 13 +#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK BIT(13) +#define ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT 14 +#define ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK BIT(14) +#define ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT 15 +#define ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK BIT(15) +#define ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT 20 +#define ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK BIT(20) +#define ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT 21 +#define ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK GENMASK(22, 21) +#define ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT 24 +#define ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK BIT(24) +#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT 25 +#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK BIT(25) +#define ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT 26 +#define ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK BIT(26) +#define ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT 27 +#define ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK BIT(27) +#define ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT 28 +#define ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK BIT(28) +#define ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT 30 +#define ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK BIT(30) + +/* intr_reg */ +#define ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK GENMASK(14, 0) +#define ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT 15 +#define ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK GENMASK(29, 15) +#define ENA_ETH_IO_INTR_REG_INTR_UNMASK_SHIFT 30 +#define ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK BIT(30) + +#if !defined(ENA_DEFS_LINUX_MAINLINE) +static inline uint32_t get_ena_eth_io_tx_desc_length( + const struct ena_eth_io_tx_desc *p) +{ + return p->len_ctrl & ENA_ETH_IO_TX_DESC_LENGTH_MASK; +} + +static inline void set_ena_eth_io_tx_desc_length( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= val & ENA_ETH_IO_TX_DESC_LENGTH_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_req_id_hi( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK) + >> ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_req_id_hi( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT) + & ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_meta_desc( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_META_DESC_MASK) + >> ENA_ETH_IO_TX_DESC_META_DESC_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_meta_desc( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_META_DESC_SHIFT) + & ENA_ETH_IO_TX_DESC_META_DESC_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_phase( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_PHASE_MASK) + >> ENA_ETH_IO_TX_DESC_PHASE_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_phase( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) + & ENA_ETH_IO_TX_DESC_PHASE_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_first( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_FIRST_MASK) + >> ENA_ETH_IO_TX_DESC_FIRST_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_first( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_FIRST_SHIFT) + & ENA_ETH_IO_TX_DESC_FIRST_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_last( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_LAST_MASK) + >> ENA_ETH_IO_TX_DESC_LAST_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_last( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_LAST_SHIFT) + & ENA_ETH_IO_TX_DESC_LAST_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_comp_req( + const struct ena_eth_io_tx_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_DESC_COMP_REQ_MASK) + >> ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_comp_req( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT) + & ENA_ETH_IO_TX_DESC_COMP_REQ_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_l3_proto_idx( + const struct ena_eth_io_tx_desc *p) +{ + return p->meta_ctrl & ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK; +} + +static inline void set_ena_eth_io_tx_desc_l3_proto_idx( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= val & ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_DF( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_DF_MASK) + >> ENA_ETH_IO_TX_DESC_DF_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_DF( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_DF_SHIFT) + & ENA_ETH_IO_TX_DESC_DF_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_tso_en( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TSO_EN_MASK) + >> ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_tso_en( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT) + & ENA_ETH_IO_TX_DESC_TSO_EN_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_l4_proto_idx( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK) + >> ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_l4_proto_idx( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT) + & ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_l3_csum_en( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK) + >> ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_l3_csum_en( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT) + & ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_l4_csum_en( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK) + >> ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_l4_csum_en( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT) + & ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_ethernet_fcs_dis( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK) + >> ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_ethernet_fcs_dis( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT) + & ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_l4_csum_partial( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK) + >> ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_l4_csum_partial( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT) + & ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_tunnel_ctrl( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK) + >> ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_tunnel_ctrl( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT) + & ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_ts_req( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TS_REQ_MASK) + >> ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_ts_req( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT) + & ENA_ETH_IO_TX_DESC_TS_REQ_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_req_id_lo( + const struct ena_eth_io_tx_desc *p) +{ + return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK) + >> ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_req_id_lo( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->meta_ctrl |= + (val << ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) + & ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_addr_hi( + const struct ena_eth_io_tx_desc *p) +{ + return p->buff_addr_hi_hdr_sz & ENA_ETH_IO_TX_DESC_ADDR_HI_MASK; +} + +static inline void set_ena_eth_io_tx_desc_addr_hi( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->buff_addr_hi_hdr_sz |= val & ENA_ETH_IO_TX_DESC_ADDR_HI_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_desc_header_length( + const struct ena_eth_io_tx_desc *p) +{ + return (p->buff_addr_hi_hdr_sz & ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK) + >> ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT; +} + +static inline void set_ena_eth_io_tx_desc_header_length( + struct ena_eth_io_tx_desc *p, + uint32_t val) +{ + p->buff_addr_hi_hdr_sz |= + (val << ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) + & ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_req_id_lo( + const struct ena_eth_io_tx_meta_desc *p) +{ + return p->len_ctrl & ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK; +} + +static inline void set_ena_eth_io_tx_meta_desc_req_id_lo( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= val & ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_off_hi( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK) + >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_outr_l3_off_hi( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT) + & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_ext_valid( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK) + >> ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_ext_valid( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT) + & ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_word3_valid( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK) + >> ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_word3_valid( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT) + & ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_mss_hi_ptp( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK) + >> ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_mss_hi_ptp( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT) + & ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_eth_meta_type( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK) + >> ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_eth_meta_type( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT) + & ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_meta_store( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_META_STORE_MASK) + >> ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_meta_store( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT) + & ENA_ETH_IO_TX_META_DESC_META_STORE_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_meta_desc( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_META_DESC_MASK) + >> ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_meta_desc( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT) + & ENA_ETH_IO_TX_META_DESC_META_DESC_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_phase( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_PHASE_MASK) + >> ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_phase( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) + & ENA_ETH_IO_TX_META_DESC_PHASE_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_first( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_FIRST_MASK) + >> ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_first( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT) + & ENA_ETH_IO_TX_META_DESC_FIRST_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_last( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_LAST_MASK) + >> ENA_ETH_IO_TX_META_DESC_LAST_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_last( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_LAST_SHIFT) + & ENA_ETH_IO_TX_META_DESC_LAST_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_comp_req( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK) + >> ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_comp_req( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->len_ctrl |= + (val << ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT) + & ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_req_id_hi( + const struct ena_eth_io_tx_meta_desc *p) +{ + return p->word1 & ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK; +} + +static inline void set_ena_eth_io_tx_meta_desc_req_id_hi( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word1 |= val & ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_l3_hdr_len( + const struct ena_eth_io_tx_meta_desc *p) +{ + return p->word2 & ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK; +} + +static inline void set_ena_eth_io_tx_meta_desc_l3_hdr_len( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word2 |= val & ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_l3_hdr_off( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->word2 & ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK) + >> ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_l3_hdr_off( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word2 |= + (val << ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) + & ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_l4_hdr_len_in_words( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->word2 & ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK) + >> ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_l4_hdr_len_in_words( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word2 |= + (val << ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) + & ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_mss_lo( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->word2 & ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK) + >> ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_mss_lo( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word2 |= + (val << ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) + & ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_crypto_info( + const struct ena_eth_io_tx_meta_desc *p) +{ + return p->word3 & ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK; +} + +static inline void set_ena_eth_io_tx_meta_desc_crypto_info( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word3 |= val & ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_hdr_len_words( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->word3 & ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK) + >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_outr_l3_hdr_len_words( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word3 |= + (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT) + & ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK; +} + +static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_off_lo( + const struct ena_eth_io_tx_meta_desc *p) +{ + return (p->word3 & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK) + >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT; +} + +static inline void set_ena_eth_io_tx_meta_desc_outr_l3_off_lo( + struct ena_eth_io_tx_meta_desc *p, + uint32_t val) +{ + p->word3 |= + (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT) + & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK; +} + +static inline uint8_t get_ena_eth_io_tx_cdesc_phase( + const struct ena_eth_io_tx_cdesc *p) +{ + return p->flags & ENA_ETH_IO_TX_CDESC_PHASE_MASK; +} + +static inline void set_ena_eth_io_tx_cdesc_phase( + struct ena_eth_io_tx_cdesc *p, + uint8_t val) +{ + p->flags |= val & ENA_ETH_IO_TX_CDESC_PHASE_MASK; +} + +static inline uint8_t get_ena_eth_io_rx_desc_phase( + const struct ena_eth_io_rx_desc *p) +{ + return p->ctrl & ENA_ETH_IO_RX_DESC_PHASE_MASK; +} + +static inline void set_ena_eth_io_rx_desc_phase( + struct ena_eth_io_rx_desc *p, + uint8_t val) +{ + p->ctrl |= val & ENA_ETH_IO_RX_DESC_PHASE_MASK; +} + +static inline uint8_t get_ena_eth_io_rx_desc_first( + const struct ena_eth_io_rx_desc *p) +{ + return (p->ctrl & ENA_ETH_IO_RX_DESC_FIRST_MASK) + >> ENA_ETH_IO_RX_DESC_FIRST_SHIFT; +} + +static inline void set_ena_eth_io_rx_desc_first( + struct ena_eth_io_rx_desc *p, + uint8_t val) +{ + p->ctrl |= + (val << ENA_ETH_IO_RX_DESC_FIRST_SHIFT) + & ENA_ETH_IO_RX_DESC_FIRST_MASK; +} + +static inline uint8_t get_ena_eth_io_rx_desc_last( + const struct ena_eth_io_rx_desc *p) +{ + return (p->ctrl & ENA_ETH_IO_RX_DESC_LAST_MASK) + >> ENA_ETH_IO_RX_DESC_LAST_SHIFT; +} + +static inline void set_ena_eth_io_rx_desc_last( + struct ena_eth_io_rx_desc *p, + uint8_t val) +{ + p->ctrl |= + (val << ENA_ETH_IO_RX_DESC_LAST_SHIFT) + & ENA_ETH_IO_RX_DESC_LAST_MASK; +} + +static inline uint8_t get_ena_eth_io_rx_desc_comp_req( + const struct ena_eth_io_rx_desc *p) +{ + return (p->ctrl & ENA_ETH_IO_RX_DESC_COMP_REQ_MASK) + >> ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT; +} + +static inline void set_ena_eth_io_rx_desc_comp_req( + struct ena_eth_io_rx_desc *p, + uint8_t val) +{ + p->ctrl |= + (val << ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT) + & ENA_ETH_IO_RX_DESC_COMP_REQ_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_proto_idx( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK; +} + +static inline void set_ena_eth_io_rx_cdesc_base_l3_proto_idx( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= val & ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_src_vlan_cnt( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_src_vlan_cnt( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_tunnel( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_tunnel( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_l4_proto_idx( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_l4_proto_idx( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_csum_err( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_l3_csum_err( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_l4_csum_err( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_l4_csum_err( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_ipv4_frag( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_ipv4_frag( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_secured_pkt( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_secured_pkt( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_crypto_status( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_crypto_status( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_phase( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_phase( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_csum2( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_l3_csum2( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_first( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_first( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_last( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_last( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_inr_l4_csum( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_inr_l4_csum( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK; +} + +static inline uint32_t get_ena_eth_io_rx_cdesc_base_buffer( + const struct ena_eth_io_rx_cdesc_base *p) +{ + return (p->status & ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK) + >> ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT; +} + +static inline void set_ena_eth_io_rx_cdesc_base_buffer( + struct ena_eth_io_rx_cdesc_base *p, + uint32_t val) +{ + p->status |= + (val << ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT) + & ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK; +} + +static inline uint32_t get_ena_eth_io_intr_reg_rx_intr_delay( + const struct ena_eth_io_intr_reg *p) +{ + return p->intr_control & ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; +} + +static inline void set_ena_eth_io_intr_reg_rx_intr_delay( + struct ena_eth_io_intr_reg *p, + uint32_t val) +{ + p->intr_control |= val & ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; +} + +static inline uint32_t get_ena_eth_io_intr_reg_tx_intr_delay( + const struct ena_eth_io_intr_reg *p) +{ + return (p->intr_control & ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK) + >> ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT; +} + +static inline void set_ena_eth_io_intr_reg_tx_intr_delay( + struct ena_eth_io_intr_reg *p, + uint32_t val) +{ + p->intr_control |= + (val << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT) + & ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK; +} + +static inline uint32_t get_ena_eth_io_intr_reg_intr_unmask( + const struct ena_eth_io_intr_reg *p) +{ + return (p->intr_control & ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK) + >> ENA_ETH_IO_INTR_REG_INTR_UNMASK_SHIFT; +} + +static inline void set_ena_eth_io_intr_reg_intr_unmask( + struct ena_eth_io_intr_reg *p, + uint32_t val) +{ + p->intr_control |= + (val << ENA_ETH_IO_INTR_REG_INTR_UNMASK_SHIFT) + & ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; +} + +#endif /* !defined(ENA_DEFS_LINUX_MAINLINE) */ +#endif /*_ENA_ETH_IO_H_ */ diff --git a/drivers/net/ena/base/ena_defs/ena_gen_info.h b/drivers/net/ena/base/ena_defs/ena_gen_info.h new file mode 100644 index 00000000..4abdffed --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_gen_info.h @@ -0,0 +1,35 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#define ENA_GEN_DATE "Mon Feb 15 14:33:08 IST 2016" +#define ENA_GEN_COMMIT "c71ec25" diff --git a/drivers/net/ena/base/ena_defs/ena_includes.h b/drivers/net/ena/base/ena_defs/ena_includes.h new file mode 100644 index 00000000..a86c876f --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_includes.h @@ -0,0 +1,39 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "ena_common_defs.h" +#include "ena_regs_defs.h" +#include "ena_admin_defs.h" +#include "ena_eth_io_defs.h" +#include "ena_efa_admin_defs.h" +#include "ena_efa_io_defs.h" diff --git a/drivers/net/ena/base/ena_defs/ena_regs_defs.h b/drivers/net/ena/base/ena_defs/ena_regs_defs.h new file mode 100644 index 00000000..d0241278 --- /dev/null +++ b/drivers/net/ena/base/ena_defs/ena_regs_defs.h @@ -0,0 +1,135 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_REGS_H_ +#define _ENA_REGS_H_ + +/* ena_registers offsets */ +#define ENA_REGS_VERSION_OFF 0x0 +#define ENA_REGS_CONTROLLER_VERSION_OFF 0x4 +#define ENA_REGS_CAPS_OFF 0x8 +#define ENA_REGS_CAPS_EXT_OFF 0xc +#define ENA_REGS_AQ_BASE_LO_OFF 0x10 +#define ENA_REGS_AQ_BASE_HI_OFF 0x14 +#define ENA_REGS_AQ_CAPS_OFF 0x18 +#define ENA_REGS_ACQ_BASE_LO_OFF 0x20 +#define ENA_REGS_ACQ_BASE_HI_OFF 0x24 +#define ENA_REGS_ACQ_CAPS_OFF 0x28 +#define ENA_REGS_AQ_DB_OFF 0x2c +#define ENA_REGS_ACQ_TAIL_OFF 0x30 +#define ENA_REGS_AENQ_CAPS_OFF 0x34 +#define ENA_REGS_AENQ_BASE_LO_OFF 0x38 +#define ENA_REGS_AENQ_BASE_HI_OFF 0x3c +#define ENA_REGS_AENQ_HEAD_DB_OFF 0x40 +#define ENA_REGS_AENQ_TAIL_OFF 0x44 +#define ENA_REGS_INTR_MASK_OFF 0x4c +#define ENA_REGS_DEV_CTL_OFF 0x54 +#define ENA_REGS_DEV_STS_OFF 0x58 +#define ENA_REGS_MMIO_REG_READ_OFF 0x5c +#define ENA_REGS_MMIO_RESP_LO_OFF 0x60 +#define ENA_REGS_MMIO_RESP_HI_OFF 0x64 +#define ENA_REGS_RSS_IND_ENTRY_UPDATE_OFF 0x68 + +/* version register */ +#define ENA_REGS_VERSION_MINOR_VERSION_MASK 0xff +#define ENA_REGS_VERSION_MAJOR_VERSION_SHIFT 8 +#define ENA_REGS_VERSION_MAJOR_VERSION_MASK 0xff00 + +/* controller_version register */ +#define ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK 0xff +#define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT 8 +#define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK 0xff00 +#define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT 16 +#define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK 0xff0000 +#define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT 24 +#define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK 0xff000000 + +/* caps register */ +#define ENA_REGS_CAPS_CONTIGUOUS_QUEUE_REQUIRED_MASK 0x1 +#define ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT 1 +#define ENA_REGS_CAPS_RESET_TIMEOUT_MASK 0x3e +#define ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT 8 +#define ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK 0xff00 + +/* aq_caps register */ +#define ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK 0xffff +#define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT 16 +#define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK 0xffff0000 + +/* acq_caps register */ +#define ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK 0xffff +#define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT 16 +#define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK 0xffff0000 + +/* aenq_caps register */ +#define ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK 0xffff +#define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT 16 +#define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK 0xffff0000 + +/* dev_ctl register */ +#define ENA_REGS_DEV_CTL_DEV_RESET_MASK 0x1 +#define ENA_REGS_DEV_CTL_AQ_RESTART_SHIFT 1 +#define ENA_REGS_DEV_CTL_AQ_RESTART_MASK 0x2 +#define ENA_REGS_DEV_CTL_QUIESCENT_SHIFT 2 +#define ENA_REGS_DEV_CTL_QUIESCENT_MASK 0x4 +#define ENA_REGS_DEV_CTL_IO_RESUME_SHIFT 3 +#define ENA_REGS_DEV_CTL_IO_RESUME_MASK 0x8 + +/* dev_sts register */ +#define ENA_REGS_DEV_STS_READY_MASK 0x1 +#define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_SHIFT 1 +#define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_MASK 0x2 +#define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_SHIFT 2 +#define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_MASK 0x4 +#define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_SHIFT 3 +#define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK 0x8 +#define ENA_REGS_DEV_STS_RESET_FINISHED_SHIFT 4 +#define ENA_REGS_DEV_STS_RESET_FINISHED_MASK 0x10 +#define ENA_REGS_DEV_STS_FATAL_ERROR_SHIFT 5 +#define ENA_REGS_DEV_STS_FATAL_ERROR_MASK 0x20 +#define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_SHIFT 6 +#define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_MASK 0x40 +#define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_SHIFT 7 +#define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_MASK 0x80 + +/* mmio_reg_read register */ +#define ENA_REGS_MMIO_REG_READ_REQ_ID_MASK 0xffff +#define ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT 16 +#define ENA_REGS_MMIO_REG_READ_REG_OFF_MASK 0xffff0000 + +/* rss_ind_entry_update register */ +#define ENA_REGS_RSS_IND_ENTRY_UPDATE_INDEX_MASK 0xffff +#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_SHIFT 16 +#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_MASK 0xffff0000 + +#endif /*_ENA_REGS_H_ */ diff --git a/drivers/net/ena/base/ena_eth_com.c b/drivers/net/ena/base/ena_eth_com.c new file mode 100644 index 00000000..459e0bbb --- /dev/null +++ b/drivers/net/ena/base/ena_eth_com.c @@ -0,0 +1,508 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "ena_eth_com.h" + +static inline struct ena_eth_io_rx_cdesc_base *ena_com_get_next_rx_cdesc( + struct ena_com_io_cq *io_cq) +{ + struct ena_eth_io_rx_cdesc_base *cdesc; + u16 expected_phase, head_masked; + u16 desc_phase; + + head_masked = io_cq->head & (io_cq->q_depth - 1); + expected_phase = io_cq->phase; + + cdesc = (struct ena_eth_io_rx_cdesc_base *) + ((unsigned char *)io_cq->cdesc_addr.virt_addr + + (head_masked * io_cq->cdesc_entry_size_in_bytes)); + + desc_phase = (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT; + + if (desc_phase != expected_phase) + return NULL; + + return cdesc; +} + +static inline void ena_com_cq_inc_head(struct ena_com_io_cq *io_cq) +{ + io_cq->head++; + + /* Switch phase bit in case of wrap around */ + if (unlikely((io_cq->head & (io_cq->q_depth - 1)) == 0)) + io_cq->phase = 1 - io_cq->phase; +} + +static inline void *get_sq_desc(struct ena_com_io_sq *io_sq) +{ + u16 tail_masked; + u32 offset; + + tail_masked = io_sq->tail & (io_sq->q_depth - 1); + + offset = tail_masked * io_sq->desc_entry_size; + + return (unsigned char *)io_sq->desc_addr.virt_addr + offset; +} + +static inline void ena_com_copy_curr_sq_desc_to_dev(struct ena_com_io_sq *io_sq) +{ + u16 tail_masked = io_sq->tail & (io_sq->q_depth - 1); + u32 offset = tail_masked * io_sq->desc_entry_size; + + /* In case this queue isn't a LLQ */ + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) + return; + + memcpy_toio((unsigned char *)io_sq->desc_addr.pbuf_dev_addr + offset, + (unsigned char *)io_sq->desc_addr.virt_addr + offset, + io_sq->desc_entry_size); +} + +static inline void ena_com_sq_update_tail(struct ena_com_io_sq *io_sq) +{ + io_sq->tail++; + + /* Switch phase bit in case of wrap around */ + if (unlikely((io_sq->tail & (io_sq->q_depth - 1)) == 0)) + io_sq->phase = 1 - io_sq->phase; +} + +static inline int ena_com_write_header(struct ena_com_io_sq *io_sq, + u8 *head_src, u16 header_len) +{ + u16 tail_masked = io_sq->tail & (io_sq->q_depth - 1); + u8 __iomem *dev_head_addr = + io_sq->header_addr + (tail_masked * io_sq->tx_max_header_size); + + if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) + return 0; + + ENA_ASSERT(io_sq->header_addr, "header address is NULL\n"); + + memcpy_toio(dev_head_addr, head_src, header_len); + + return 0; +} + +static inline struct ena_eth_io_rx_cdesc_base * + ena_com_rx_cdesc_idx_to_ptr(struct ena_com_io_cq *io_cq, u16 idx) +{ + idx &= (io_cq->q_depth - 1); + return (struct ena_eth_io_rx_cdesc_base *) + ((unsigned char *)io_cq->cdesc_addr.virt_addr + + idx * io_cq->cdesc_entry_size_in_bytes); +} + +static inline int ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq, + u16 *first_cdesc_idx, + u16 *nb_hw_desc) +{ + struct ena_eth_io_rx_cdesc_base *cdesc; + u16 count = 0, head_masked; + u32 last = 0; + + do { + cdesc = ena_com_get_next_rx_cdesc(io_cq); + if (!cdesc) + break; + + ena_com_cq_inc_head(io_cq); + count++; + last = (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT; + } while (!last); + + if (last) { + *first_cdesc_idx = io_cq->cur_rx_pkt_cdesc_start_idx; + count += io_cq->cur_rx_pkt_cdesc_count; + + head_masked = io_cq->head & (io_cq->q_depth - 1); + + io_cq->cur_rx_pkt_cdesc_count = 0; + io_cq->cur_rx_pkt_cdesc_start_idx = head_masked; + + ena_trc_dbg("ena q_id: %d packets were completed. first desc idx %u descs# %d\n", + io_cq->qid, *first_cdesc_idx, count); + } else { + io_cq->cur_rx_pkt_cdesc_count += count; + count = 0; + } + + *nb_hw_desc = count; + return 0; +} + +static inline bool ena_com_meta_desc_changed(struct ena_com_io_sq *io_sq, + struct ena_com_tx_ctx *ena_tx_ctx) +{ + int rc; + + if (ena_tx_ctx->meta_valid) { + rc = memcmp(&io_sq->cached_tx_meta, + &ena_tx_ctx->ena_meta, + sizeof(struct ena_com_tx_meta)); + + if (unlikely(rc != 0)) + return true; + } + + return false; +} + +static inline void ena_com_create_and_store_tx_meta_desc( + struct ena_com_io_sq *io_sq, + struct ena_com_tx_ctx *ena_tx_ctx) +{ + struct ena_eth_io_tx_meta_desc *meta_desc = NULL; + struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta; + + meta_desc = get_sq_desc(io_sq); + memset(meta_desc, 0x0, sizeof(struct ena_eth_io_tx_meta_desc)); + + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_DESC_MASK; + + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK; + + /* bits 0-9 of the mss */ + meta_desc->word2 |= (ena_meta->mss << + ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) & + ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK; + /* bits 10-13 of the mss */ + meta_desc->len_ctrl |= ((ena_meta->mss >> 10) << + ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT) & + ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK; + + /* Extended meta desc */ + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK; + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_STORE_MASK; + meta_desc->len_ctrl |= (io_sq->phase << + ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) & + ENA_ETH_IO_TX_META_DESC_PHASE_MASK; + + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_FIRST_MASK; + meta_desc->word2 |= ena_meta->l3_hdr_len & + ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK; + meta_desc->word2 |= (ena_meta->l3_hdr_offset << + ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) & + ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK; + + meta_desc->word2 |= (ena_meta->l4_hdr_len << + ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) & + ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK; + + meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_STORE_MASK; + + /* Cached the meta desc */ + memcpy(&io_sq->cached_tx_meta, ena_meta, + sizeof(struct ena_com_tx_meta)); + + ena_com_copy_curr_sq_desc_to_dev(io_sq); + ena_com_sq_update_tail(io_sq); +} + +static inline void ena_com_rx_set_flags(struct ena_com_rx_ctx *ena_rx_ctx, + struct ena_eth_io_rx_cdesc_base *cdesc) +{ + ena_rx_ctx->l3_proto = (enum ena_eth_io_l3_proto_index)(cdesc->status & + ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK); + ena_rx_ctx->l4_proto = (enum ena_eth_io_l4_proto_index) + ((cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT); + ena_rx_ctx->l3_csum_err = + (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT; + ena_rx_ctx->l4_csum_err = + (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT; + ena_rx_ctx->hash = cdesc->hash; + ena_rx_ctx->frag = + (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT; + + ena_trc_dbg("ena_rx_ctx->l3_proto %d ena_rx_ctx->l4_proto %d\nena_rx_ctx->l3_csum_err %d ena_rx_ctx->l4_csum_err %d\nhash frag %d frag: %d cdesc_status: %x\n", + ena_rx_ctx->l3_proto, + ena_rx_ctx->l4_proto, + ena_rx_ctx->l3_csum_err, + ena_rx_ctx->l4_csum_err, + ena_rx_ctx->hash, + ena_rx_ctx->frag, + cdesc->status); +} + +/*****************************************************************************/ +/***************************** API **********************************/ +/*****************************************************************************/ + +int ena_com_prepare_tx(struct ena_com_io_sq *io_sq, + struct ena_com_tx_ctx *ena_tx_ctx, + int *nb_hw_desc) +{ + struct ena_eth_io_tx_desc *desc = NULL; + struct ena_com_buf *ena_bufs = ena_tx_ctx->ena_bufs; + void *push_header = ena_tx_ctx->push_header; + u16 header_len = ena_tx_ctx->header_len; + u16 num_bufs = ena_tx_ctx->num_bufs; + int total_desc, i, rc; + bool have_meta; + u64 addr_hi; + + ENA_ASSERT(io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX, + "wrong Q type"); + + /* num_bufs +1 for potential meta desc */ + if (ena_com_sq_empty_space(io_sq) < (num_bufs + 1)) { + ena_trc_err("Not enough space in the tx queue\n"); + return ENA_COM_NO_MEM; + } + + if (unlikely(header_len > io_sq->tx_max_header_size)) { + ena_trc_err("header size is too large %d max header: %d\n", + header_len, io_sq->tx_max_header_size); + return ENA_COM_INVAL; + } + + /* start with pushing the header (if needed) */ + rc = ena_com_write_header(io_sq, push_header, header_len); + if (unlikely(rc)) + return rc; + + have_meta = ena_tx_ctx->meta_valid && ena_com_meta_desc_changed(io_sq, + ena_tx_ctx); + if (have_meta) + ena_com_create_and_store_tx_meta_desc(io_sq, ena_tx_ctx); + + /* If the caller doesn't want send packets */ + if (unlikely(!num_bufs && !header_len)) { + *nb_hw_desc = have_meta ? 0 : 1; + return 0; + } + + desc = get_sq_desc(io_sq); + memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc)); + + /* Set first desc when we don't have meta descriptor */ + if (!have_meta) + desc->len_ctrl |= ENA_ETH_IO_TX_DESC_FIRST_MASK; + + desc->buff_addr_hi_hdr_sz |= (header_len << + ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) & + ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK; + desc->len_ctrl |= (io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) & + ENA_ETH_IO_TX_DESC_PHASE_MASK; + + desc->len_ctrl |= ENA_ETH_IO_TX_DESC_COMP_REQ_MASK; + + /* Bits 0-9 */ + desc->meta_ctrl |= (ena_tx_ctx->req_id << + ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) & + ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK; + + desc->meta_ctrl |= (ena_tx_ctx->df << + ENA_ETH_IO_TX_DESC_DF_SHIFT) & + ENA_ETH_IO_TX_DESC_DF_MASK; + + /* Bits 10-15 */ + desc->len_ctrl |= ((ena_tx_ctx->req_id >> 10) << + ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT) & + ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK; + + if (ena_tx_ctx->meta_valid) { + desc->meta_ctrl |= (ena_tx_ctx->tso_enable << + ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT) & + ENA_ETH_IO_TX_DESC_TSO_EN_MASK; + desc->meta_ctrl |= ena_tx_ctx->l3_proto & + ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK; + desc->meta_ctrl |= (ena_tx_ctx->l4_proto << + ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT) & + ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK; + desc->meta_ctrl |= (ena_tx_ctx->l3_csum_enable << + ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT) & + ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK; + desc->meta_ctrl |= (ena_tx_ctx->l4_csum_enable << + ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT) & + ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK; + desc->meta_ctrl |= (ena_tx_ctx->l4_csum_partial << + ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT) & + ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK; + } + + for (i = 0; i < num_bufs; i++) { + /* The first desc share the same desc as the header */ + if (likely(i != 0)) { + ena_com_copy_curr_sq_desc_to_dev(io_sq); + ena_com_sq_update_tail(io_sq); + + desc = get_sq_desc(io_sq); + memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc)); + + desc->len_ctrl |= (io_sq->phase << + ENA_ETH_IO_TX_DESC_PHASE_SHIFT) & + ENA_ETH_IO_TX_DESC_PHASE_MASK; + } + + desc->len_ctrl |= ena_bufs->len & + ENA_ETH_IO_TX_DESC_LENGTH_MASK; + + addr_hi = ((ena_bufs->paddr & + GENMASK_ULL(io_sq->dma_addr_bits - 1, 32)) >> 32); + + desc->buff_addr_lo = (u32)ena_bufs->paddr; + desc->buff_addr_hi_hdr_sz |= addr_hi & + ENA_ETH_IO_TX_DESC_ADDR_HI_MASK; + ena_bufs++; + } + + /* set the last desc indicator */ + desc->len_ctrl |= ENA_ETH_IO_TX_DESC_LAST_MASK; + + ena_com_copy_curr_sq_desc_to_dev(io_sq); + + ena_com_sq_update_tail(io_sq); + + total_desc = ENA_MAX16(num_bufs, 1); + total_desc += have_meta ? 1 : 0; + + *nb_hw_desc = total_desc; + return 0; +} + +int ena_com_rx_pkt(struct ena_com_io_cq *io_cq, + struct ena_com_io_sq *io_sq, + struct ena_com_rx_ctx *ena_rx_ctx) +{ + struct ena_com_rx_buf_info *ena_buf = &ena_rx_ctx->ena_bufs[0]; + struct ena_eth_io_rx_cdesc_base *cdesc = NULL; + u16 cdesc_idx = 0; + u16 nb_hw_desc; + u16 i; + int rc; + + ENA_ASSERT(io_cq->direction == ENA_COM_IO_QUEUE_DIRECTION_RX, + "wrong Q type"); + + rc = ena_com_cdesc_rx_pkt_get(io_cq, &cdesc_idx, &nb_hw_desc); + if (rc || (nb_hw_desc == 0)) { + ena_rx_ctx->descs = nb_hw_desc; + return rc; + } + + ena_trc_dbg("fetch rx packet: queue %d completed desc: %d\n", + io_cq->qid, nb_hw_desc); + + if (unlikely(nb_hw_desc >= ena_rx_ctx->max_bufs)) { + ena_trc_err("Too many RX cdescs (%d) > MAX(%d)\n", + nb_hw_desc, ena_rx_ctx->max_bufs); + return ENA_COM_NO_SPACE; + } + + for (i = 0; i < nb_hw_desc; i++) { + cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx + i); + + ena_buf->len = cdesc->length; + ena_buf->req_id = cdesc->req_id; + ena_buf++; + } + + /* Update SQ head ptr */ + io_sq->next_to_comp += nb_hw_desc; + + ena_trc_dbg("[%s][QID#%d] Updating SQ head to: %d\n", __func__, + io_sq->qid, io_sq->next_to_comp); + + /* Get rx flags from the last pkt */ + ena_com_rx_set_flags(ena_rx_ctx, cdesc); + + ena_rx_ctx->descs = nb_hw_desc; + return 0; +} + +int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq, + struct ena_com_buf *ena_buf, + u16 req_id) +{ + struct ena_eth_io_rx_desc *desc; + + ENA_ASSERT(io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_RX, + "wrong Q type"); + + if (unlikely(ena_com_sq_empty_space(io_sq) == 0)) + return -1; + + desc = get_sq_desc(io_sq); + memset(desc, 0x0, sizeof(struct ena_eth_io_rx_desc)); + + desc->length = ena_buf->len; + + desc->ctrl |= ENA_ETH_IO_RX_DESC_FIRST_MASK; + desc->ctrl |= ENA_ETH_IO_RX_DESC_LAST_MASK; + desc->ctrl |= io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK; + desc->ctrl |= ENA_ETH_IO_RX_DESC_COMP_REQ_MASK; + + desc->req_id = req_id; + + desc->buff_addr_lo = (u32)ena_buf->paddr; + desc->buff_addr_hi = + ((ena_buf->paddr & + GENMASK_ULL(io_sq->dma_addr_bits - 1, 32)) >> 32); + + ena_com_sq_update_tail(io_sq); + + return 0; +} + +int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq, u16 *req_id) +{ + u8 expected_phase, cdesc_phase; + struct ena_eth_io_tx_cdesc *cdesc; + u16 masked_head; + + masked_head = io_cq->head & (io_cq->q_depth - 1); + expected_phase = io_cq->phase; + + cdesc = (struct ena_eth_io_tx_cdesc *) + ((unsigned char *)io_cq->cdesc_addr.virt_addr + + (masked_head * io_cq->cdesc_entry_size_in_bytes)); + + cdesc_phase = cdesc->flags & ENA_ETH_IO_TX_CDESC_PHASE_MASK; + if (cdesc_phase != expected_phase) + return -1; + + ena_com_cq_inc_head(io_cq); + + *req_id = cdesc->req_id; + + return 0; +} diff --git a/drivers/net/ena/base/ena_eth_com.h b/drivers/net/ena/base/ena_eth_com.h new file mode 100644 index 00000000..325d69c0 --- /dev/null +++ b/drivers/net/ena/base/ena_eth_com.h @@ -0,0 +1,153 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef ENA_ETH_COM_H_ +#define ENA_ETH_COM_H_ + +#if defined(__cplusplus) +extern "C" { +#endif +#include "ena_com.h" + +/* head update threshold in units of (queue size / ENA_COMP_HEAD_THRESH) */ +#define ENA_COMP_HEAD_THRESH 4 + +struct ena_com_tx_ctx { + struct ena_com_tx_meta ena_meta; + struct ena_com_buf *ena_bufs; + /* For LLQ, header buffer - pushed to the device mem space */ + void *push_header; + + enum ena_eth_io_l3_proto_index l3_proto; + enum ena_eth_io_l4_proto_index l4_proto; + u16 num_bufs; + u16 req_id; + /* For regular queue, indicate the size of the header + * For LLQ, indicate the size of the pushed buffer + */ + u16 header_len; + + u8 meta_valid; + u8 tso_enable; + u8 l3_csum_enable; + u8 l4_csum_enable; + u8 l4_csum_partial; + u8 df; /* Don't fragment */ +}; + +struct ena_com_rx_ctx { + struct ena_com_rx_buf_info *ena_bufs; + enum ena_eth_io_l3_proto_index l3_proto; + enum ena_eth_io_l4_proto_index l4_proto; + bool l3_csum_err; + bool l4_csum_err; + /* fragmented packet */ + bool frag; + u32 hash; + u16 descs; + int max_bufs; +}; + +int ena_com_prepare_tx(struct ena_com_io_sq *io_sq, + struct ena_com_tx_ctx *ena_tx_ctx, + int *nb_hw_desc); + +int ena_com_rx_pkt(struct ena_com_io_cq *io_cq, + struct ena_com_io_sq *io_sq, + struct ena_com_rx_ctx *ena_rx_ctx); + +int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq, + struct ena_com_buf *ena_buf, + u16 req_id); + +int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq, u16 *req_id); + +static inline void ena_com_unmask_intr(struct ena_com_io_cq *io_cq, + struct ena_eth_io_intr_reg *intr_reg) +{ + ENA_REG_WRITE32(intr_reg->intr_control, io_cq->unmask_reg); +} + +static inline int ena_com_sq_empty_space(struct ena_com_io_sq *io_sq) +{ + u16 tail, next_to_comp, cnt; + + next_to_comp = io_sq->next_to_comp; + tail = io_sq->tail; + cnt = tail - next_to_comp; + + return io_sq->q_depth - 1 - cnt; +} + +static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq) +{ + u16 tail; + + tail = io_sq->tail; + + ena_trc_dbg("write submission queue doorbell for queue: %d tail: %d\n", + io_sq->qid, tail); + + ENA_REG_WRITE32(tail, io_sq->db_addr); + + return 0; +} + +static inline int ena_com_update_dev_comp_head(struct ena_com_io_cq *io_cq) +{ + u16 unreported_comp, head; + bool need_update; + + head = io_cq->head; + unreported_comp = head - io_cq->last_head_update; + need_update = unreported_comp > (io_cq->q_depth / ENA_COMP_HEAD_THRESH); + + if (io_cq->cq_head_db_reg && need_update) { + ena_trc_dbg("Write completion queue doorbell for queue %d: head: %d\n", + io_cq->qid, head); + ENA_REG_WRITE32(head, io_cq->cq_head_db_reg); + io_cq->last_head_update = head; + } + + return 0; +} + +static inline void ena_com_comp_ack(struct ena_com_io_sq *io_sq, u16 elem) +{ + io_sq->next_to_comp += elem; +} + +#if defined(__cplusplus) +} +#endif +#endif /* ENA_ETH_COM_H_ */ diff --git a/drivers/net/ena/base/ena_plat.h b/drivers/net/ena/base/ena_plat.h new file mode 100644 index 00000000..b5b64545 --- /dev/null +++ b/drivers/net/ena/base/ena_plat.h @@ -0,0 +1,53 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef ENA_PLAT_H_ +#define ENA_PLAT_H_ + +#if defined(ENA_IPXE) +#include "ena_plat_ipxe.h" +#elif defined(__linux__) +#if defined(__KERNEL__) +#include "ena_plat_linux.h" +#else +#include "ena_plat_dpdk.h" +#endif +#elif defined(__FreeBSD__) +#include "ena_plat_dpdk.h" +#elif defined(_WIN32) +#include "ena_plat_windows.h" +#else +#error "Invalid platform" +#endif + +#endif /* ENA_PLAT_H_ */ diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h new file mode 100644 index 00000000..aab2ac86 --- /dev/null +++ b/drivers/net/ena/base/ena_plat_dpdk.h @@ -0,0 +1,220 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef DPDK_ENA_COM_ENA_PLAT_DPDK_H_ +#define DPDK_ENA_COM_ENA_PLAT_DPDK_H_ + +#include <stdbool.h> +#include <stdlib.h> +#include <pthread.h> +#include <stdint.h> +#include <string.h> +#include <errno.h> + +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_cycles.h> +#include <rte_log.h> +#include <rte_malloc.h> +#include <rte_memzone.h> +#include <rte_spinlock.h> + +#include <sys/time.h> + +typedef uint64_t u64; +typedef uint32_t u32; +typedef uint16_t u16; +typedef uint8_t u8; + +typedef uint64_t dma_addr_t; +#ifndef ETIME +#define ETIME ETIMEDOUT +#endif + +#define ena_atomic32_t rte_atomic32_t +#define ena_mem_handle_t void * + +#define SZ_256 (256) +#define SZ_4K (4096) + +#define ENA_COM_OK 0 +#define ENA_COM_NO_MEM -ENOMEM +#define ENA_COM_INVAL -EINVAL +#define ENA_COM_NO_SPACE -ENOSPC +#define ENA_COM_NO_DEVICE -ENODEV +#define ENA_COM_PERMISSION -EPERM +#define ENA_COM_TIMER_EXPIRED -ETIME +#define ENA_COM_FAULT -EFAULT + +#define ____cacheline_aligned __rte_cache_aligned + +#define ENA_ABORT() abort() + +#define ENA_MSLEEP(x) rte_delay_ms(x) +#define ENA_UDELAY(x) rte_delay_us(x) + +#define memcpy_toio memcpy +#define wmb rte_wmb +#define rmb rte_wmb +#define mb rte_mb +#define __iomem + +#define US_PER_S 1000000 +#define ENA_GET_SYSTEM_USECS() \ + (rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz()) + +#define ENA_ASSERT(cond, format, arg...) \ + do { \ + if (unlikely(!(cond))) { \ + printf("Assertion failed on %s:%s:%d: " format, \ + __FILE__, __func__, __LINE__, ##arg); \ + rte_exit(EXIT_FAILURE, "ASSERTION FAILED\n"); \ + } \ + } while (0) + +#define ENA_MAX32(x, y) RTE_MAX((x), (y)) +#define ENA_MAX16(x, y) RTE_MAX((x), (y)) +#define ENA_MAX8(x, y) RTE_MAX((x), (y)) +#define ENA_MIN32(x, y) RTE_MIN((x), (y)) +#define ENA_MIN16(x, y) RTE_MIN((x), (y)) +#define ENA_MIN8(x, y) RTE_MIN((x), (y)) + +#define U64_C(x) x ## ULL +#define BIT(nr) (1UL << (nr)) +#define BITS_PER_LONG (__SIZEOF_LONG__ * 8) +#define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) +#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l)) + +#ifdef RTE_LIBRTE_ENA_COM_DEBUG +#define ena_trc_dbg(format, arg...) \ + RTE_LOG(DEBUG, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_info(format, arg...) \ + RTE_LOG(INFO, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_warn(format, arg...) \ + RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_err(format, arg...) \ + RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#else +#define ena_trc_dbg(format, arg...) do { } while (0) +#define ena_trc_info(format, arg...) do { } while (0) +#define ena_trc_warn(format, arg...) do { } while (0) +#define ena_trc_err(format, arg...) do { } while (0) +#endif /* RTE_LIBRTE_ENA_COM_DEBUG */ + +/* Spinlock related methods */ +#define ena_spinlock_t rte_spinlock_t +#define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&spinlock) +#define ENA_SPINLOCK_LOCK(spinlock, flags) \ + ({(void)flags; rte_spinlock_lock(&spinlock); }) +#define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ + ({(void)flags; rte_spinlock_unlock(&(spinlock)); }) + +#define q_waitqueue_t \ + struct { \ + pthread_cond_t cond; \ + pthread_mutex_t mutex; \ + } + +#define ena_wait_queue_t q_waitqueue_t + +#define ENA_WAIT_EVENT_INIT(waitqueue) \ + do { \ + pthread_mutex_init(&(waitqueue).mutex, NULL); \ + pthread_cond_init(&(waitqueue).cond, NULL); \ + } while (0) + +#define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \ + do { \ + struct timespec wait; \ + struct timeval now; \ + unsigned long timeout_us; \ + gettimeofday(&now, NULL); \ + wait.tv_sec = now.tv_sec + timeout / 1000000UL; \ + timeout_us = timeout % 1000000UL; \ + wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \ + pthread_mutex_lock(&waitevent.mutex); \ + pthread_cond_timedwait(&waitevent.cond, \ + &waitevent.mutex, &wait); \ + pthread_mutex_unlock(&waitevent.mutex); \ + } while (0) +#define ENA_WAIT_EVENT_SIGNAL(waitevent) pthread_cond_signal(&waitevent.cond) +/* pthread condition doesn't need to be rearmed after usage */ +#define ENA_WAIT_EVENT_CLEAR(...) + +#define ena_wait_event_t ena_wait_queue_t +#define ENA_MIGHT_SLEEP() + +#define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle) \ + do { \ + const struct rte_memzone *mz; \ + char z_name[RTE_MEMZONE_NAMESIZE]; \ + (void)dmadev; (void)handle; \ + snprintf(z_name, sizeof(z_name), \ + "ena_alloc_%d", ena_alloc_cnt++); \ + mz = rte_memzone_reserve(z_name, size, SOCKET_ID_ANY, 0); \ + virt = mz->addr; \ + phys = mz->phys_addr; \ + } while (0) +#define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) \ + ({(void)size; rte_free(virt); }) +#define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1) +#define ENA_MEM_FREE(dmadev, ptr) ({(void)dmadev; rte_free(ptr); }) + +static inline void writel(u32 value, volatile void *addr) +{ + *(volatile u32 *)addr = value; +} + +static inline u32 readl(const volatile void *addr) +{ + return *(const volatile u32 *)addr; +} + +#define ENA_REG_WRITE32(value, reg) writel((value), (reg)) +#define ENA_REG_READ32(reg) readl((reg)) + +#define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr) +#define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr) +#define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val) +#define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr) + +#define msleep(x) rte_delay_us(x * 1000) +#define udelay(x) rte_delay_us(x) + +#define MAX_ERRNO 4095 +#define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO) +#define ERR_PTR(error) ((void *)(long)error) +#define PTR_ERR(error) ((long)(void *)error) +#define might_sleep() + +#endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */ diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c new file mode 100644 index 00000000..02af67a2 --- /dev/null +++ b/drivers/net/ena/ena_ethdev.c @@ -0,0 +1,1455 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_tcp.h> +#include <rte_atomic.h> +#include <rte_dev.h> +#include <rte_errno.h> + +#include "ena_ethdev.h" +#include "ena_logs.h" +#include "ena_platform.h" +#include "ena_com.h" +#include "ena_eth_com.h" + +#include <ena_common_defs.h> +#include <ena_regs_defs.h> +#include <ena_admin_defs.h> +#include <ena_eth_io_defs.h> + +#define ENA_IO_TXQ_IDX(q) (2 * (q)) +#define ENA_IO_RXQ_IDX(q) (2 * (q) + 1) +/*reverse version of ENA_IO_RXQ_IDX*/ +#define ENA_IO_RXQ_IDX_REV(q) ((q - 1) / 2) + +/* While processing submitted and completed descriptors (rx and tx path + * respectively) in a loop it is desired to: + * - perform batch submissions while populating sumbissmion queue + * - avoid blocking transmission of other packets during cleanup phase + * Hence the utilization ratio of 1/8 of a queue size. + */ +#define ENA_RING_DESCS_RATIO(ring_size) (ring_size / 8) + +#define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l) +#define TEST_BIT(val, bit_shift) (val & (1UL << bit_shift)) + +#define GET_L4_HDR_LEN(mbuf) \ + ((rte_pktmbuf_mtod_offset(mbuf, struct tcp_hdr *, \ + mbuf->l3_len + mbuf->l2_len)->data_off) >> 4) + +#define ENA_RX_RSS_TABLE_LOG_SIZE 7 +#define ENA_RX_RSS_TABLE_SIZE (1 << ENA_RX_RSS_TABLE_LOG_SIZE) +#define ENA_HASH_KEY_SIZE 40 + +/** Vendor ID used by Amazon devices */ +#define PCI_VENDOR_ID_AMAZON 0x1D0F +/** Amazon devices */ +#define PCI_DEVICE_ID_ENA_VF 0xEC20 +#define PCI_DEVICE_ID_ENA_LLQ_VF 0xEC21 + +static struct rte_pci_id pci_id_ena_map[] = { +#define RTE_PCI_DEV_ID_DECL_ENA(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, + + RTE_PCI_DEV_ID_DECL_ENA(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) + RTE_PCI_DEV_ID_DECL_ENA(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_LLQ_VF) + {.device_id = 0}, +}; + +static int ena_device_init(struct ena_com_dev *ena_dev, + struct ena_com_dev_get_features_ctx *get_feat_ctx); +static int ena_dev_configure(struct rte_eth_dev *dev); +static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, + uint16_t nb_desc, unsigned int socket_id, + const struct rte_eth_txconf *tx_conf); +static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, + uint16_t nb_desc, unsigned int socket_id, + const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mp); +static uint16_t eth_ena_recv_pkts(void *rx_queue, + struct rte_mbuf **rx_pkts, uint16_t nb_pkts); +static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count); +static void ena_init_rings(struct ena_adapter *adapter); +static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu); +static int ena_start(struct rte_eth_dev *dev); +static void ena_close(struct rte_eth_dev *dev); +static void ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats); +static void ena_rx_queue_release_all(struct rte_eth_dev *dev); +static void ena_tx_queue_release_all(struct rte_eth_dev *dev); +static void ena_rx_queue_release(void *queue); +static void ena_tx_queue_release(void *queue); +static void ena_rx_queue_release_bufs(struct ena_ring *ring); +static void ena_tx_queue_release_bufs(struct ena_ring *ring); +static int ena_link_update(struct rte_eth_dev *dev, + __rte_unused int wait_to_complete); +static int ena_queue_restart(struct ena_ring *ring); +static int ena_queue_restart_all(struct rte_eth_dev *dev, + enum ena_ring_type ring_type); +static void ena_stats_restart(struct rte_eth_dev *dev); +static void ena_infos_get(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_dev_info *dev_info); +static int ena_rss_reta_update(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size); +static int ena_rss_reta_query(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size); + +static struct eth_dev_ops ena_dev_ops = { + .dev_configure = ena_dev_configure, + .dev_infos_get = ena_infos_get, + .rx_queue_setup = ena_rx_queue_setup, + .tx_queue_setup = ena_tx_queue_setup, + .dev_start = ena_start, + .link_update = ena_link_update, + .stats_get = ena_stats_get, + .mtu_set = ena_mtu_set, + .rx_queue_release = ena_rx_queue_release, + .tx_queue_release = ena_tx_queue_release, + .dev_close = ena_close, + .reta_update = ena_rss_reta_update, + .reta_query = ena_rss_reta_query, +}; + +static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf, + struct ena_com_rx_ctx *ena_rx_ctx) +{ + uint64_t ol_flags = 0; + + if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP) + ol_flags |= PKT_TX_TCP_CKSUM; + else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP) + ol_flags |= PKT_TX_UDP_CKSUM; + + if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4) + ol_flags |= PKT_TX_IPV4; + else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) + ol_flags |= PKT_TX_IPV6; + + if (unlikely(ena_rx_ctx->l4_csum_err)) + ol_flags |= PKT_RX_L4_CKSUM_BAD; + if (unlikely(ena_rx_ctx->l3_csum_err)) + ol_flags |= PKT_RX_IP_CKSUM_BAD; + + mbuf->ol_flags = ol_flags; +} + +static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf, + struct ena_com_tx_ctx *ena_tx_ctx) +{ + struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta; + + if (mbuf->ol_flags & + (PKT_TX_L4_MASK | PKT_TX_IP_CKSUM | PKT_TX_TCP_SEG)) { + /* check if TSO is required */ + if (mbuf->ol_flags & PKT_TX_TCP_SEG) { + ena_tx_ctx->tso_enable = true; + + ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf); + } + + /* check if L3 checksum is needed */ + if (mbuf->ol_flags & PKT_TX_IP_CKSUM) + ena_tx_ctx->l3_csum_enable = true; + + if (mbuf->ol_flags & PKT_TX_IPV6) { + ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6; + } else { + ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4; + + /* set don't fragment (DF) flag */ + if (mbuf->packet_type & + (RTE_PTYPE_L4_NONFRAG + | RTE_PTYPE_INNER_L4_NONFRAG)) + ena_tx_ctx->df = true; + } + + /* check if L4 checksum is needed */ + switch (mbuf->ol_flags & PKT_TX_L4_MASK) { + case PKT_TX_TCP_CKSUM: + ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP; + ena_tx_ctx->l4_csum_enable = true; + break; + case PKT_TX_UDP_CKSUM: + ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP; + ena_tx_ctx->l4_csum_enable = true; + break; + default: + ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN; + ena_tx_ctx->l4_csum_enable = false; + break; + } + + ena_meta->mss = mbuf->tso_segsz; + ena_meta->l3_hdr_len = mbuf->l3_len; + ena_meta->l3_hdr_offset = mbuf->l2_len; + /* this param needed only for TSO */ + ena_meta->l3_outer_hdr_len = 0; + ena_meta->l3_outer_hdr_offset = 0; + + ena_tx_ctx->meta_valid = true; + } else { + ena_tx_ctx->meta_valid = false; + } +} + +static void ena_close(struct rte_eth_dev *dev) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + + adapter->state = ENA_ADAPTER_STATE_STOPPED; + + ena_rx_queue_release_all(dev); + ena_tx_queue_release_all(dev); +} + +static int ena_rss_reta_update(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + struct ena_com_dev *ena_dev = &adapter->ena_dev; + int ret, i; + u16 entry_value; + int conf_idx; + int idx; + + if ((reta_size == 0) || (reta_conf == NULL)) + return -EINVAL; + + if (reta_size > ENA_RX_RSS_TABLE_SIZE) { + RTE_LOG(WARNING, PMD, + "indirection table %d is bigger than supported (%d)\n", + reta_size, ENA_RX_RSS_TABLE_SIZE); + ret = -EINVAL; + goto err; + } + + for (i = 0 ; i < reta_size ; i++) { + /* each reta_conf is for 64 entries. + * to support 128 we use 2 conf of 64 + */ + conf_idx = i / RTE_RETA_GROUP_SIZE; + idx = i % RTE_RETA_GROUP_SIZE; + if (TEST_BIT(reta_conf[conf_idx].mask, idx)) { + entry_value = + ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]); + ret = ena_com_indirect_table_fill_entry(ena_dev, + i, + entry_value); + if (unlikely(ret && (ret != ENA_COM_PERMISSION))) { + RTE_LOG(ERR, PMD, + "Cannot fill indirect table\n"); + ret = -ENOTSUP; + goto err; + } + } + } + + ret = ena_com_indirect_table_set(ena_dev); + if (unlikely(ret && (ret != ENA_COM_PERMISSION))) { + RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n"); + ret = -ENOTSUP; + goto err; + } + + RTE_LOG(DEBUG, PMD, "%s(): RSS configured %d entries for port %d\n", + __func__, reta_size, adapter->rte_dev->data->port_id); +err: + return ret; +} + +/* Query redirection table. */ +static int ena_rss_reta_query(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + struct ena_com_dev *ena_dev = &adapter->ena_dev; + int ret; + int i; + u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0}; + int reta_conf_idx; + int reta_idx; + + if (reta_size == 0 || reta_conf == NULL || + (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL))) + return -EINVAL; + + ret = ena_com_indirect_table_get(ena_dev, indirect_table); + if (unlikely(ret && (ret != ENA_COM_PERMISSION))) { + RTE_LOG(ERR, PMD, "cannot get indirect table\n"); + ret = -ENOTSUP; + goto err; + } + + for (i = 0 ; i < reta_size ; i++) { + reta_conf_idx = i / RTE_RETA_GROUP_SIZE; + reta_idx = i % RTE_RETA_GROUP_SIZE; + if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx)) + reta_conf[reta_conf_idx].reta[reta_idx] = + ENA_IO_RXQ_IDX_REV(indirect_table[i]); + } +err: + return ret; +} + +static int ena_rss_init_default(struct ena_adapter *adapter) +{ + struct ena_com_dev *ena_dev = &adapter->ena_dev; + uint16_t nb_rx_queues = adapter->rte_dev->data->nb_rx_queues; + int rc, i; + u32 val; + + rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE); + if (unlikely(rc)) { + RTE_LOG(ERR, PMD, "Cannot init indirect table\n"); + goto err_rss_init; + } + + for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) { + val = i % nb_rx_queues; + rc = ena_com_indirect_table_fill_entry(ena_dev, i, + ENA_IO_RXQ_IDX(val)); + if (unlikely(rc && (rc != ENA_COM_PERMISSION))) { + RTE_LOG(ERR, PMD, "Cannot fill indirect table\n"); + goto err_fill_indir; + } + } + + rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL, + ENA_HASH_KEY_SIZE, 0xFFFFFFFF); + if (unlikely(rc && (rc != ENA_COM_PERMISSION))) { + RTE_LOG(INFO, PMD, "Cannot fill hash function\n"); + goto err_fill_indir; + } + + rc = ena_com_set_default_hash_ctrl(ena_dev); + if (unlikely(rc && (rc != ENA_COM_PERMISSION))) { + RTE_LOG(INFO, PMD, "Cannot fill hash control\n"); + goto err_fill_indir; + } + + rc = ena_com_indirect_table_set(ena_dev); + if (unlikely(rc && (rc != ENA_COM_PERMISSION))) { + RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n"); + goto err_fill_indir; + } + RTE_LOG(DEBUG, PMD, "RSS configured for port %d\n", + adapter->rte_dev->data->port_id); + + return 0; + +err_fill_indir: + ena_com_rss_destroy(ena_dev); +err_rss_init: + + return rc; +} + +static void ena_rx_queue_release_all(struct rte_eth_dev *dev) +{ + struct ena_ring **queues = (struct ena_ring **)dev->data->rx_queues; + int nb_queues = dev->data->nb_rx_queues; + int i; + + for (i = 0; i < nb_queues; i++) + ena_rx_queue_release(queues[i]); +} + +static void ena_tx_queue_release_all(struct rte_eth_dev *dev) +{ + struct ena_ring **queues = (struct ena_ring **)dev->data->tx_queues; + int nb_queues = dev->data->nb_tx_queues; + int i; + + for (i = 0; i < nb_queues; i++) + ena_tx_queue_release(queues[i]); +} + +static void ena_rx_queue_release(void *queue) +{ + struct ena_ring *ring = (struct ena_ring *)queue; + struct ena_adapter *adapter = ring->adapter; + int ena_qid; + + ena_assert_msg(ring->configured, + "API violation - releasing not configured queue"); + ena_assert_msg(ring->adapter->state != ENA_ADAPTER_STATE_RUNNING, + "API violation"); + + /* Destroy HW queue */ + ena_qid = ENA_IO_RXQ_IDX(ring->id); + ena_com_destroy_io_queue(&adapter->ena_dev, ena_qid); + + /* Free all bufs */ + ena_rx_queue_release_bufs(ring); + + /* Free ring resources */ + if (ring->rx_buffer_info) + rte_free(ring->rx_buffer_info); + ring->rx_buffer_info = NULL; + + ring->configured = 0; + + RTE_LOG(NOTICE, PMD, "RX Queue %d:%d released\n", + ring->port_id, ring->id); +} + +static void ena_tx_queue_release(void *queue) +{ + struct ena_ring *ring = (struct ena_ring *)queue; + struct ena_adapter *adapter = ring->adapter; + int ena_qid; + + ena_assert_msg(ring->configured, + "API violation. Releasing not configured queue"); + ena_assert_msg(ring->adapter->state != ENA_ADAPTER_STATE_RUNNING, + "API violation"); + + /* Destroy HW queue */ + ena_qid = ENA_IO_TXQ_IDX(ring->id); + ena_com_destroy_io_queue(&adapter->ena_dev, ena_qid); + + /* Free all bufs */ + ena_tx_queue_release_bufs(ring); + + /* Free ring resources */ + if (ring->tx_buffer_info) + rte_free(ring->tx_buffer_info); + + if (ring->empty_tx_reqs) + rte_free(ring->empty_tx_reqs); + + ring->empty_tx_reqs = NULL; + ring->tx_buffer_info = NULL; + + ring->configured = 0; + + RTE_LOG(NOTICE, PMD, "TX Queue %d:%d released\n", + ring->port_id, ring->id); +} + +static void ena_rx_queue_release_bufs(struct ena_ring *ring) +{ + unsigned int ring_mask = ring->ring_size - 1; + + while (ring->next_to_clean != ring->next_to_use) { + struct rte_mbuf *m = + ring->rx_buffer_info[ring->next_to_clean & ring_mask]; + + if (m) + __rte_mbuf_raw_free(m); + + ring->next_to_clean = + ENA_CIRC_INC(ring->next_to_clean, 1, ring->ring_size); + } +} + +static void ena_tx_queue_release_bufs(struct ena_ring *ring) +{ + unsigned int ring_mask = ring->ring_size - 1; + + while (ring->next_to_clean != ring->next_to_use) { + struct ena_tx_buffer *tx_buf = + &ring->tx_buffer_info[ring->next_to_clean & ring_mask]; + + if (tx_buf->mbuf) + rte_pktmbuf_free(tx_buf->mbuf); + + ring->next_to_clean = + ENA_CIRC_INC(ring->next_to_clean, 1, ring->ring_size); + } +} + +static int ena_link_update(struct rte_eth_dev *dev, + __rte_unused int wait_to_complete) +{ + struct rte_eth_link *link = &dev->data->dev_link; + + link->link_status = 1; + link->link_speed = ETH_SPEED_NUM_10G; + link->link_duplex = ETH_LINK_FULL_DUPLEX; + + return 0; +} + +static int ena_queue_restart_all(struct rte_eth_dev *dev, + enum ena_ring_type ring_type) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + struct ena_ring *queues = NULL; + int i = 0; + int rc = 0; + + queues = (ring_type == ENA_RING_TYPE_RX) ? + adapter->rx_ring : adapter->tx_ring; + + for (i = 0; i < adapter->num_queues; i++) { + if (queues[i].configured) { + if (ring_type == ENA_RING_TYPE_RX) { + ena_assert_msg( + dev->data->rx_queues[i] == &queues[i], + "Inconsistent state of rx queues\n"); + } else { + ena_assert_msg( + dev->data->tx_queues[i] == &queues[i], + "Inconsistent state of tx queues\n"); + } + + rc = ena_queue_restart(&queues[i]); + + if (rc) { + PMD_INIT_LOG(ERR, + "failed to restart queue %d type(%d)\n", + i, ring_type); + return -1; + } + } + } + + return 0; +} + +static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter) +{ + uint32_t max_frame_len = adapter->max_mtu; + + if (adapter->rte_eth_dev_data->dev_conf.rxmode.jumbo_frame == 1) + max_frame_len = + adapter->rte_eth_dev_data->dev_conf.rxmode.max_rx_pkt_len; + + return max_frame_len; +} + +static int ena_check_valid_conf(struct ena_adapter *adapter) +{ + uint32_t max_frame_len = ena_get_mtu_conf(adapter); + + if (max_frame_len > adapter->max_mtu) { + PMD_INIT_LOG(ERR, "Unsupported MTU of %d\n", max_frame_len); + return -1; + } + + return 0; +} + +static int +ena_calc_queue_size(struct ena_com_dev *ena_dev, + struct ena_com_dev_get_features_ctx *get_feat_ctx) +{ + uint32_t queue_size = ENA_DEFAULT_RING_SIZE; + + queue_size = RTE_MIN(queue_size, + get_feat_ctx->max_queues.max_cq_depth); + queue_size = RTE_MIN(queue_size, + get_feat_ctx->max_queues.max_sq_depth); + + if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) + queue_size = RTE_MIN(queue_size, + get_feat_ctx->max_queues.max_llq_depth); + + /* Round down to power of 2 */ + if (!rte_is_power_of_2(queue_size)) + queue_size = rte_align32pow2(queue_size >> 1); + + if (queue_size == 0) { + PMD_INIT_LOG(ERR, "Invalid queue size\n"); + return -EFAULT; + } + + return queue_size; +} + +static void ena_stats_restart(struct rte_eth_dev *dev) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + + rte_atomic64_init(&adapter->drv_stats->ierrors); + rte_atomic64_init(&adapter->drv_stats->oerrors); + rte_atomic64_init(&adapter->drv_stats->imcasts); + rte_atomic64_init(&adapter->drv_stats->rx_nombuf); +} + +static void ena_stats_get(struct rte_eth_dev *dev, + struct rte_eth_stats *stats) +{ + struct ena_admin_basic_stats ena_stats; + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + struct ena_com_dev *ena_dev = &adapter->ena_dev; + int rc; + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return; + + memset(&ena_stats, 0, sizeof(ena_stats)); + rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats); + if (unlikely(rc)) { + RTE_LOG(ERR, PMD, "Could not retrieve statistics from ENA"); + return; + } + + /* Set of basic statistics from ENA */ + stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high, + ena_stats.rx_pkts_low); + stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high, + ena_stats.tx_pkts_low); + stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high, + ena_stats.rx_bytes_low); + stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high, + ena_stats.tx_bytes_low); + stats->imissed = __MERGE_64B_H_L(ena_stats.rx_drops_high, + ena_stats.rx_drops_low); + + /* Driver related stats */ + stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors); + stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors); + stats->imcasts = rte_atomic64_read(&adapter->drv_stats->imcasts); + stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf); +} + +static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) +{ + struct ena_adapter *adapter; + struct ena_com_dev *ena_dev; + int rc = 0; + + ena_assert_msg(dev->data != NULL, "Uninitialized device"); + ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device"); + adapter = (struct ena_adapter *)(dev->data->dev_private); + + ena_dev = &adapter->ena_dev; + ena_assert_msg(ena_dev != NULL, "Uninitialized device"); + + if (mtu > ena_get_mtu_conf(adapter)) { + RTE_LOG(ERR, PMD, + "Given MTU (%d) exceeds maximum MTU supported (%d)\n", + mtu, ena_get_mtu_conf(adapter)); + rc = -EINVAL; + goto err; + } + + rc = ena_com_set_dev_mtu(ena_dev, mtu); + if (rc) + RTE_LOG(ERR, PMD, "Could not set MTU: %d\n", mtu); + else + RTE_LOG(NOTICE, PMD, "Set MTU: %d\n", mtu); + +err: + return rc; +} + +static int ena_start(struct rte_eth_dev *dev) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + int rc = 0; + + if (!(adapter->state == ENA_ADAPTER_STATE_CONFIG || + adapter->state == ENA_ADAPTER_STATE_STOPPED)) { + PMD_INIT_LOG(ERR, "API violation"); + return -1; + } + + rc = ena_check_valid_conf(adapter); + if (rc) + return rc; + + rc = ena_queue_restart_all(dev, ENA_RING_TYPE_RX); + if (rc) + return rc; + + rc = ena_queue_restart_all(dev, ENA_RING_TYPE_TX); + if (rc) + return rc; + + if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode & + ETH_MQ_RX_RSS_FLAG) { + rc = ena_rss_init_default(adapter); + if (rc) + return rc; + } + + ena_stats_restart(dev); + + adapter->state = ENA_ADAPTER_STATE_RUNNING; + + return 0; +} + +static int ena_queue_restart(struct ena_ring *ring) +{ + int rc; + + ena_assert_msg(ring->configured == 1, + "Trying to restart unconfigured queue\n"); + + ring->next_to_clean = 0; + ring->next_to_use = 0; + + if (ring->type == ENA_RING_TYPE_TX) + return 0; + + rc = ena_populate_rx_queue(ring, ring->ring_size - 1); + if ((unsigned int)rc != ring->ring_size - 1) { + PMD_INIT_LOG(ERR, "Failed to populate rx ring !\n"); + return (-1); + } + + return 0; +} + +static int ena_tx_queue_setup(struct rte_eth_dev *dev, + uint16_t queue_idx, + uint16_t nb_desc, + __rte_unused unsigned int socket_id, + __rte_unused const struct rte_eth_txconf *tx_conf) +{ + struct ena_ring *txq = NULL; + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + unsigned int i; + int ena_qid; + int rc; + struct ena_com_dev *ena_dev = &adapter->ena_dev; + + txq = &adapter->tx_ring[queue_idx]; + + if (txq->configured) { + RTE_LOG(CRIT, PMD, + "API violation. Queue %d is already configured\n", + queue_idx); + return -1; + } + + if (nb_desc > adapter->tx_ring_size) { + RTE_LOG(ERR, PMD, + "Unsupported size of TX queue (max size: %d)\n", + adapter->tx_ring_size); + return -EINVAL; + } + + ena_qid = ENA_IO_TXQ_IDX(queue_idx); + rc = ena_com_create_io_queue(ena_dev, ena_qid, + ENA_COM_IO_QUEUE_DIRECTION_TX, + ena_dev->tx_mem_queue_type, + -1 /* admin interrupts is not used */, + nb_desc); + if (rc) { + RTE_LOG(ERR, PMD, + "failed to create io TX queue #%d (qid:%d) rc: %d\n", + queue_idx, ena_qid, rc); + } + txq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid]; + txq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid]; + + txq->port_id = dev->data->port_id; + txq->next_to_clean = 0; + txq->next_to_use = 0; + txq->ring_size = nb_desc; + + txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info", + sizeof(struct ena_tx_buffer) * + txq->ring_size, + RTE_CACHE_LINE_SIZE); + if (!txq->tx_buffer_info) { + RTE_LOG(ERR, PMD, "failed to alloc mem for tx buffer info\n"); + return -ENOMEM; + } + + txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs", + sizeof(u16) * txq->ring_size, + RTE_CACHE_LINE_SIZE); + if (!txq->empty_tx_reqs) { + RTE_LOG(ERR, PMD, "failed to alloc mem for tx reqs\n"); + rte_free(txq->tx_buffer_info); + return -ENOMEM; + } + for (i = 0; i < txq->ring_size; i++) + txq->empty_tx_reqs[i] = i; + + /* Store pointer to this queue in upper layer */ + txq->configured = 1; + dev->data->tx_queues[queue_idx] = txq; + + return rc; +} + +static int ena_rx_queue_setup(struct rte_eth_dev *dev, + uint16_t queue_idx, + uint16_t nb_desc, + __rte_unused unsigned int socket_id, + __rte_unused const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mp) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + struct ena_ring *rxq = NULL; + uint16_t ena_qid = 0; + int rc = 0; + struct ena_com_dev *ena_dev = &adapter->ena_dev; + + rxq = &adapter->rx_ring[queue_idx]; + if (rxq->configured) { + RTE_LOG(CRIT, PMD, + "API violation. Queue %d is already configured\n", + queue_idx); + return -1; + } + + if (nb_desc > adapter->rx_ring_size) { + RTE_LOG(ERR, PMD, + "Unsupported size of RX queue (max size: %d)\n", + adapter->rx_ring_size); + return -EINVAL; + } + + ena_qid = ENA_IO_RXQ_IDX(queue_idx); + rc = ena_com_create_io_queue(ena_dev, ena_qid, + ENA_COM_IO_QUEUE_DIRECTION_RX, + ENA_ADMIN_PLACEMENT_POLICY_HOST, + -1 /* admin interrupts not used */, + nb_desc); + if (rc) + RTE_LOG(ERR, PMD, "failed to create io RX queue #%d rc: %d\n", + queue_idx, rc); + + rxq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid]; + rxq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid]; + + rxq->port_id = dev->data->port_id; + rxq->next_to_clean = 0; + rxq->next_to_use = 0; + rxq->ring_size = nb_desc; + rxq->mb_pool = mp; + + rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info", + sizeof(struct rte_mbuf *) * nb_desc, + RTE_CACHE_LINE_SIZE); + if (!rxq->rx_buffer_info) { + RTE_LOG(ERR, PMD, "failed to alloc mem for rx buffer info\n"); + return -ENOMEM; + } + + /* Store pointer to this queue in upper layer */ + rxq->configured = 1; + dev->data->rx_queues[queue_idx] = rxq; + + return rc; +} + +static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count) +{ + unsigned int i; + int rc; + unsigned int ring_size = rxq->ring_size; + unsigned int ring_mask = ring_size - 1; + int next_to_use = rxq->next_to_use & ring_mask; + struct rte_mbuf **mbufs = &rxq->rx_buffer_info[0]; + + if (unlikely(!count)) + return 0; + + ena_assert_msg((((ENA_CIRC_COUNT(rxq->next_to_use, rxq->next_to_clean, + rxq->ring_size)) + + count) < rxq->ring_size), "bad ring state"); + + count = RTE_MIN(count, ring_size - next_to_use); + + /* get resources for incoming packets */ + rc = rte_mempool_get_bulk(rxq->mb_pool, + (void **)(&mbufs[next_to_use]), count); + if (unlikely(rc < 0)) { + rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf); + PMD_RX_LOG(DEBUG, "there are no enough free buffers"); + return 0; + } + + for (i = 0; i < count; i++) { + struct rte_mbuf *mbuf = mbufs[next_to_use]; + struct ena_com_buf ebuf; + + rte_prefetch0(mbufs[((next_to_use + 4) & ring_mask)]); + /* prepare physical address for DMA transaction */ + ebuf.paddr = mbuf->buf_physaddr + RTE_PKTMBUF_HEADROOM; + ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM; + /* pass resource to device */ + rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq, + &ebuf, next_to_use); + if (unlikely(rc)) { + RTE_LOG(WARNING, PMD, "failed adding rx desc\n"); + break; + } + next_to_use = ENA_RX_RING_IDX_NEXT(next_to_use, ring_size); + } + + rte_wmb(); + rxq->next_to_use = next_to_use; + /* let HW know that it can fill buffers with data */ + ena_com_write_sq_doorbell(rxq->ena_com_io_sq); + + return i; +} + +static int ena_device_init(struct ena_com_dev *ena_dev, + struct ena_com_dev_get_features_ctx *get_feat_ctx) +{ + int rc; + + /* Initialize mmio registers */ + rc = ena_com_mmio_reg_read_request_init(ena_dev); + if (rc) { + RTE_LOG(ERR, PMD, "failed to init mmio read less\n"); + return rc; + } + + /* reset device */ + rc = ena_com_dev_reset(ena_dev); + if (rc) { + RTE_LOG(ERR, PMD, "cannot reset device\n"); + goto err_mmio_read_less; + } + + /* check FW version */ + rc = ena_com_validate_version(ena_dev); + if (rc) { + RTE_LOG(ERR, PMD, "device version is too low\n"); + goto err_mmio_read_less; + } + + ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev); + + /* ENA device administration layer init */ + rc = ena_com_admin_init(ena_dev, NULL, true); + if (rc) { + RTE_LOG(ERR, PMD, + "cannot initialize ena admin queue with device\n"); + goto err_mmio_read_less; + } + + /* To enable the msix interrupts the driver needs to know the number + * of queues. So the driver uses polling mode to retrieve this + * information. + */ + ena_com_set_admin_polling_mode(ena_dev, true); + + /* Get Device Attributes and features */ + rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx); + if (rc) { + RTE_LOG(ERR, PMD, + "cannot get attribute for ena device rc= %d\n", rc); + goto err_admin_init; + } + + return 0; + +err_admin_init: + ena_com_admin_destroy(ena_dev); + +err_mmio_read_less: + ena_com_mmio_reg_read_request_destroy(ena_dev); + + return rc; +} + +static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) +{ + struct rte_pci_device *pci_dev; + struct ena_adapter *adapter = + (struct ena_adapter *)(eth_dev->data->dev_private); + struct ena_com_dev *ena_dev = &adapter->ena_dev; + struct ena_com_dev_get_features_ctx get_feat_ctx; + int queue_size, rc; + + static int adapters_found; + + memset(adapter, 0, sizeof(struct ena_adapter)); + ena_dev = &adapter->ena_dev; + + eth_dev->dev_ops = &ena_dev_ops; + eth_dev->rx_pkt_burst = ð_ena_recv_pkts; + eth_dev->tx_pkt_burst = ð_ena_xmit_pkts; + adapter->rte_eth_dev_data = eth_dev->data; + adapter->rte_dev = eth_dev; + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + pci_dev = eth_dev->pci_dev; + adapter->pdev = pci_dev; + + PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n", + pci_dev->addr.domain, + pci_dev->addr.bus, + pci_dev->addr.devid, + pci_dev->addr.function); + + adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr; + adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr; + + /* Present ENA_MEM_BAR indicates available LLQ mode. + * Use corresponding policy + */ + if (adapter->dev_mem_base) + ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_DEV; + else if (adapter->regs) + ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST; + else + PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)\n", + ENA_REGS_BAR); + + ena_dev->reg_bar = adapter->regs; + ena_dev->dmadev = adapter->pdev; + + adapter->id_number = adapters_found; + + snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d", + adapter->id_number); + + /* device specific initialization routine */ + rc = ena_device_init(ena_dev, &get_feat_ctx); + if (rc) { + PMD_INIT_LOG(CRIT, "Failed to init ENA device\n"); + return -1; + } + + if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) { + if (get_feat_ctx.max_queues.max_llq_num == 0) { + PMD_INIT_LOG(ERR, + "Trying to use LLQ but llq_num is 0.\n" + "Fall back into regular queues.\n"); + ena_dev->tx_mem_queue_type = + ENA_ADMIN_PLACEMENT_POLICY_HOST; + adapter->num_queues = + get_feat_ctx.max_queues.max_sq_num; + } else { + adapter->num_queues = + get_feat_ctx.max_queues.max_llq_num; + } + } else { + adapter->num_queues = get_feat_ctx.max_queues.max_sq_num; + } + + queue_size = ena_calc_queue_size(ena_dev, &get_feat_ctx); + if ((queue_size <= 0) || (adapter->num_queues <= 0)) + return -EFAULT; + + adapter->tx_ring_size = queue_size; + adapter->rx_ring_size = queue_size; + + /* prepare ring structures */ + ena_init_rings(adapter); + + /* Set max MTU for this device */ + adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu; + + /* Copy MAC address and point DPDK to it */ + eth_dev->data->mac_addrs = (struct ether_addr *)adapter->mac_addr; + ether_addr_copy((struct ether_addr *)get_feat_ctx.dev_attr.mac_addr, + (struct ether_addr *)adapter->mac_addr); + + adapter->drv_stats = rte_zmalloc("adapter stats", + sizeof(*adapter->drv_stats), + RTE_CACHE_LINE_SIZE); + if (!adapter->drv_stats) { + RTE_LOG(ERR, PMD, "failed to alloc mem for adapter stats\n"); + return -ENOMEM; + } + + adapters_found++; + adapter->state = ENA_ADAPTER_STATE_INIT; + + return 0; +} + +static int ena_dev_configure(struct rte_eth_dev *dev) +{ + struct ena_adapter *adapter = + (struct ena_adapter *)(dev->data->dev_private); + + if (!(adapter->state == ENA_ADAPTER_STATE_INIT || + adapter->state == ENA_ADAPTER_STATE_STOPPED)) { + PMD_INIT_LOG(ERR, "Illegal adapter state: %d\n", + adapter->state); + return -1; + } + + switch (adapter->state) { + case ENA_ADAPTER_STATE_INIT: + case ENA_ADAPTER_STATE_STOPPED: + adapter->state = ENA_ADAPTER_STATE_CONFIG; + break; + case ENA_ADAPTER_STATE_CONFIG: + RTE_LOG(WARNING, PMD, + "Ivalid driver state while trying to configure device\n"); + break; + default: + break; + } + + return 0; +} + +static void ena_init_rings(struct ena_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_queues; i++) { + struct ena_ring *ring = &adapter->tx_ring[i]; + + ring->configured = 0; + ring->type = ENA_RING_TYPE_TX; + ring->adapter = adapter; + ring->id = i; + ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type; + ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size; + } + + for (i = 0; i < adapter->num_queues; i++) { + struct ena_ring *ring = &adapter->rx_ring[i]; + + ring->configured = 0; + ring->type = ENA_RING_TYPE_RX; + ring->adapter = adapter; + ring->id = i; + } +} + +static void ena_infos_get(struct rte_eth_dev *dev, + struct rte_eth_dev_info *dev_info) +{ + struct ena_adapter *adapter; + struct ena_com_dev *ena_dev; + struct ena_com_dev_get_features_ctx feat; + uint32_t rx_feat = 0, tx_feat = 0; + int rc = 0; + + ena_assert_msg(dev->data != NULL, "Uninitialized device"); + ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device"); + adapter = (struct ena_adapter *)(dev->data->dev_private); + + ena_dev = &adapter->ena_dev; + ena_assert_msg(ena_dev != NULL, "Uninitialized device"); + + dev_info->speed_capa = + ETH_LINK_SPEED_1G | + ETH_LINK_SPEED_2_5G | + ETH_LINK_SPEED_5G | + ETH_LINK_SPEED_10G | + ETH_LINK_SPEED_25G | + ETH_LINK_SPEED_40G | + ETH_LINK_SPEED_50G | + ETH_LINK_SPEED_100G; + + /* Get supported features from HW */ + rc = ena_com_get_dev_attr_feat(ena_dev, &feat); + if (unlikely(rc)) { + RTE_LOG(ERR, PMD, + "Cannot get attribute for ena device rc= %d\n", rc); + return; + } + + /* Set Tx & Rx features available for device */ + if (feat.offload.tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) + tx_feat |= DEV_TX_OFFLOAD_TCP_TSO; + + if (feat.offload.tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) + tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM | + DEV_TX_OFFLOAD_UDP_CKSUM | + DEV_TX_OFFLOAD_TCP_CKSUM; + + if (feat.offload.tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) + rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM | + DEV_RX_OFFLOAD_UDP_CKSUM | + DEV_RX_OFFLOAD_TCP_CKSUM; + + /* Inform framework about available features */ + dev_info->rx_offload_capa = rx_feat; + dev_info->tx_offload_capa = tx_feat; + + dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN; + dev_info->max_rx_pktlen = adapter->max_mtu; + dev_info->max_mac_addrs = 1; + + dev_info->max_rx_queues = adapter->num_queues; + dev_info->max_tx_queues = adapter->num_queues; + dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE; +} + +static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue); + unsigned int ring_size = rx_ring->ring_size; + unsigned int ring_mask = ring_size - 1; + uint16_t next_to_clean = rx_ring->next_to_clean; + int desc_in_use = 0; + unsigned int recv_idx = 0; + struct rte_mbuf *mbuf = NULL; + struct rte_mbuf *mbuf_head = NULL; + struct rte_mbuf *mbuf_prev = NULL; + struct rte_mbuf **rx_buff_info = rx_ring->rx_buffer_info; + unsigned int completed; + + struct ena_com_rx_ctx ena_rx_ctx; + int rc = 0; + + /* Check adapter state */ + if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) { + RTE_LOG(ALERT, PMD, + "Trying to receive pkts while device is NOT running\n"); + return 0; + } + + desc_in_use = ENA_CIRC_COUNT(rx_ring->next_to_use, + next_to_clean, ring_size); + if (unlikely(nb_pkts > desc_in_use)) + nb_pkts = desc_in_use; + + for (completed = 0; completed < nb_pkts; completed++) { + int segments = 0; + + ena_rx_ctx.max_bufs = rx_ring->ring_size; + ena_rx_ctx.ena_bufs = rx_ring->ena_bufs; + ena_rx_ctx.descs = 0; + /* receive packet context */ + rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq, + rx_ring->ena_com_io_sq, + &ena_rx_ctx); + if (unlikely(rc)) { + RTE_LOG(ERR, PMD, "ena_com_rx_pkt error %d\n", rc); + return 0; + } + + if (unlikely(ena_rx_ctx.descs == 0)) + break; + + while (segments < ena_rx_ctx.descs) { + mbuf = rx_buff_info[next_to_clean & ring_mask]; + mbuf->data_len = ena_rx_ctx.ena_bufs[segments].len; + mbuf->data_off = RTE_PKTMBUF_HEADROOM; + mbuf->refcnt = 1; + mbuf->next = NULL; + if (segments == 0) { + mbuf->nb_segs = ena_rx_ctx.descs; + mbuf->port = rx_ring->port_id; + mbuf->pkt_len = 0; + mbuf_head = mbuf; + } else { + /* for multi-segment pkts create mbuf chain */ + mbuf_prev->next = mbuf; + } + mbuf_head->pkt_len += mbuf->data_len; + + mbuf_prev = mbuf; + segments++; + next_to_clean = + ENA_RX_RING_IDX_NEXT(next_to_clean, ring_size); + } + + /* fill mbuf attributes if any */ + ena_rx_mbuf_prepare(mbuf_head, &ena_rx_ctx); + mbuf_head->hash.rss = (uint32_t)rx_ring->id; + + /* pass to DPDK application head mbuf */ + rx_pkts[recv_idx] = mbuf_head; + recv_idx++; + } + + /* Burst refill to save doorbells, memory barriers, const interval */ + if (ring_size - desc_in_use - 1 > ENA_RING_DESCS_RATIO(ring_size)) + ena_populate_rx_queue(rx_ring, ring_size - desc_in_use - 1); + + rx_ring->next_to_clean = next_to_clean & ring_mask; + + return recv_idx; +} + +static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue); + unsigned int next_to_use = tx_ring->next_to_use; + struct rte_mbuf *mbuf; + unsigned int ring_size = tx_ring->ring_size; + unsigned int ring_mask = ring_size - 1; + struct ena_com_tx_ctx ena_tx_ctx; + struct ena_tx_buffer *tx_info; + struct ena_com_buf *ebuf; + uint16_t rc, req_id, total_tx_descs = 0; + int sent_idx = 0; + int nb_hw_desc; + + /* Check adapter state */ + if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) { + RTE_LOG(ALERT, PMD, + "Trying to xmit pkts while device is NOT running\n"); + return 0; + } + + for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) { + mbuf = tx_pkts[sent_idx]; + + req_id = tx_ring->empty_tx_reqs[next_to_use]; + tx_info = &tx_ring->tx_buffer_info[req_id]; + tx_info->mbuf = mbuf; + tx_info->num_of_bufs = 0; + ebuf = tx_info->bufs; + + /* Prepare TX context */ + memset(&ena_tx_ctx, 0x0, sizeof(struct ena_com_tx_ctx)); + memset(&ena_tx_ctx.ena_meta, 0x0, + sizeof(struct ena_com_tx_meta)); + ena_tx_ctx.ena_bufs = ebuf; + ena_tx_ctx.req_id = req_id; + if (tx_ring->tx_mem_queue_type == + ENA_ADMIN_PLACEMENT_POLICY_DEV) { + /* prepare the push buffer with + * virtual address of the data + */ + ena_tx_ctx.header_len = + RTE_MIN(mbuf->data_len, + tx_ring->tx_max_header_size); + ena_tx_ctx.push_header = + (void *)((char *)mbuf->buf_addr + + mbuf->data_off); + } /* there's no else as we take advantage of memset zeroing */ + + /* Set TX offloads flags, if applicable */ + ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx); + + if (unlikely(mbuf->ol_flags & + (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD))) + rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors); + + rte_prefetch0(tx_pkts[(sent_idx + 4) & ring_mask]); + + /* Process first segment taking into + * consideration pushed header + */ + if (mbuf->data_len > ena_tx_ctx.header_len) { + ebuf->paddr = mbuf->buf_physaddr + + mbuf->data_off + + ena_tx_ctx.header_len; + ebuf->len = mbuf->data_len - ena_tx_ctx.header_len; + ebuf++; + tx_info->num_of_bufs++; + } + + while ((mbuf = mbuf->next) != NULL) { + ebuf->paddr = mbuf->buf_physaddr + mbuf->data_off; + ebuf->len = mbuf->data_len; + ebuf++; + tx_info->num_of_bufs++; + } + + ena_tx_ctx.num_bufs = tx_info->num_of_bufs; + + /* Write data to device */ + rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, + &ena_tx_ctx, &nb_hw_desc); + if (unlikely(rc)) + break; + + tx_info->tx_descs = nb_hw_desc; + + next_to_use = ENA_TX_RING_IDX_NEXT(next_to_use, ring_size); + } + + /* Let HW do it's best :-) */ + rte_wmb(); + ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq); + + /* Clear complete packets */ + while (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) >= 0) { + /* Get Tx info & store how many descs were processed */ + tx_info = &tx_ring->tx_buffer_info[req_id]; + total_tx_descs += tx_info->tx_descs; + + /* Free whole mbuf chain */ + mbuf = tx_info->mbuf; + rte_pktmbuf_free(mbuf); + + /* Put back descriptor to the ring for reuse */ + tx_ring->empty_tx_reqs[tx_ring->next_to_clean] = req_id; + tx_ring->next_to_clean = + ENA_TX_RING_IDX_NEXT(tx_ring->next_to_clean, + tx_ring->ring_size); + + /* If too many descs to clean, leave it for another run */ + if (unlikely(total_tx_descs > ENA_RING_DESCS_RATIO(ring_size))) + break; + } + + /* acknowledge completion of sent packets */ + ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs); + tx_ring->next_to_use = next_to_use; + return sent_idx; +} + +static struct eth_driver rte_ena_pmd = { + { + .name = "rte_ena_pmd", + .id_table = pci_id_ena_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + }, + .eth_dev_init = eth_ena_dev_init, + .dev_private_size = sizeof(struct ena_adapter), +}; + +static int +rte_ena_pmd_init(const char *name __rte_unused, + const char *params __rte_unused) +{ + rte_eth_driver_register(&rte_ena_pmd); + return 0; +}; + +struct rte_driver ena_pmd_drv = { + .name = "ena_driver", + .type = PMD_PDEV, + .init = rte_ena_pmd_init, +}; + +PMD_REGISTER_DRIVER(ena_pmd_drv); diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h new file mode 100644 index 00000000..ba6f01e6 --- /dev/null +++ b/drivers/net/ena/ena_ethdev.h @@ -0,0 +1,160 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_ETHDEV_H_ +#define _ENA_ETHDEV_H_ + +#include <rte_pci.h> + +#include "ena_com.h" + +#define ENA_REGS_BAR 0 +#define ENA_MEM_BAR 2 + +#define ENA_MAX_NUM_QUEUES 128 + +#define ENA_DEFAULT_TX_SW_DESCS (1024) +#define ENA_DEFAULT_TX_HW_DESCS (1024) +#define ENA_DEFAULT_RING_SIZE (1024) + +#define ENA_MIN_FRAME_LEN 64 + +#define ENA_NAME_MAX_LEN 20 +#define ENA_IRQNAME_SIZE 40 + +#define ENA_PKT_MAX_BUFS 17 + +#define ENA_CIRC_COUNT(head, tail, size) \ + (((uint16_t)((uint16_t)(head) - (uint16_t)(tail))) & ((size) - 1)) + +#define ENA_CIRC_INC(index, step, size) \ + ((uint16_t)(index) + (uint16_t)(step)) +#define ENA_CIRC_INC_WRAP(index, step, size) \ + (((uint16_t)(index) + (uint16_t)(step)) & ((size) - 1)) + +#define ENA_TX_RING_IDX_NEXT(idx, ring_size) \ + ENA_CIRC_INC_WRAP(idx, 1, ring_size) +#define ENA_RX_RING_IDX_NEXT(idx, ring_size) \ + ENA_CIRC_INC_WRAP(idx, 1, ring_size) + +struct ena_adapter; + +enum ena_ring_type { + ENA_RING_TYPE_RX = 1, + ENA_RING_TYPE_TX = 2, +}; + +struct ena_tx_buffer { + struct rte_mbuf *mbuf; + unsigned int tx_descs; + unsigned int num_of_bufs; + struct ena_com_buf bufs[ENA_PKT_MAX_BUFS]; +}; + +struct ena_ring { + u16 next_to_use; + u16 next_to_clean; + + enum ena_ring_type type; + enum ena_admin_placement_policy_type tx_mem_queue_type; + /* Holds the empty requests for TX OOO completions */ + uint16_t *empty_tx_reqs; + union { + struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */ + struct rte_mbuf **rx_buffer_info; /* contex of rx packet */ + }; + unsigned int ring_size; /* number of tx/rx_buffer_info's entries */ + + struct ena_com_io_cq *ena_com_io_cq; + struct ena_com_io_sq *ena_com_io_sq; + + struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS] + __rte_cache_aligned; + + struct rte_mempool *mb_pool; + unsigned int port_id; + unsigned int id; + /* Max length PMD can push to device for LLQ */ + uint8_t tx_max_header_size; + int configured; + struct ena_adapter *adapter; +} __rte_cache_aligned; + +enum ena_adapter_state { + ENA_ADAPTER_STATE_FREE = 0, + ENA_ADAPTER_STATE_INIT = 1, + ENA_ADAPTER_STATE_RUNNING = 2, + ENA_ADAPTER_STATE_STOPPED = 3, + ENA_ADAPTER_STATE_CONFIG = 4, +}; + +struct ena_driver_stats { + rte_atomic64_t ierrors; + rte_atomic64_t oerrors; + rte_atomic64_t imcasts; + rte_atomic64_t rx_nombuf; +}; + +/* board specific private data structure */ +struct ena_adapter { + /* OS defined structs */ + struct rte_pci_device *pdev; + struct rte_eth_dev_data *rte_eth_dev_data; + struct rte_eth_dev *rte_dev; + + struct ena_com_dev ena_dev __rte_cache_aligned; + + /* TX */ + struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned; + int tx_ring_size; + + /* RX */ + struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned; + int rx_ring_size; + + u16 num_queues; + u16 max_mtu; + + int id_number; + char name[ENA_NAME_MAX_LEN]; + u8 mac_addr[ETHER_ADDR_LEN]; + + void *regs; + void *dev_mem_base; + + struct ena_driver_stats *drv_stats; + enum ena_adapter_state state; + +}; + +#endif /* _ENA_ETHDEV_H_ */ diff --git a/drivers/net/ena/ena_logs.h b/drivers/net/ena/ena_logs.h new file mode 100644 index 00000000..c6c8a41b --- /dev/null +++ b/drivers/net/ena/ena_logs.h @@ -0,0 +1,70 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _ENA_LOGS_H_ +#define _ENA_LOGS_H_ + +#define RTE_LOGTYPE_ENA RTE_LOGTYPE_USER1 + +#define PMD_INIT_LOG(level, fmt, args...) \ + RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args) + +#ifdef RTE_LIBRTE_ENA_DEBUG_RX +#define PMD_RX_LOG(level, fmt, args...) \ + RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args) +#else +#define PMD_RX_LOG(level, fmt, args...) do { } while (0) +#endif + +#ifdef RTE_LIBRTE_ENA_DEBUG_TX +#define PMD_TX_LOG(level, fmt, args...) \ + RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args) +#else +#define PMD_TX_LOG(level, fmt, args...) do { } while (0) +#endif + +#ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE +#define PMD_TX_FREE_LOG(level, fmt, args...) \ + RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args) +#else +#define PMD_TX_FREE_LOG(level, fmt, args...) do { } while (0) +#endif + +#ifdef RTE_LIBRTE_ENA_DEBUG_DRIVER +#define PMD_DRV_LOG(level, fmt, args...) \ + RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args) +#else +#define PMD_DRV_LOG(level, fmt, args...) do { } while (0) +#endif + +#endif /* _ENA_LOGS_H_ */ diff --git a/drivers/net/ena/ena_platform.h b/drivers/net/ena/ena_platform.h new file mode 100644 index 00000000..0df82d6f --- /dev/null +++ b/drivers/net/ena/ena_platform.h @@ -0,0 +1,59 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* * Neither the name of copyright holder nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef __ENA_PLATFORM_H__ +#define __ENA_PLATFORM_H__ + +#define swap16_to_le(x) (x) + +#define swap32_to_le(x) (x) + +#define swap64_to_le(x) (x) + +#define swap16_from_le(x) (x) + +#define swap32_from_le(x) (x) + +#define swap64_from_le(x) (x) + +#define ena_assert_msg(cond, msg) \ + do { \ + if (unlikely(!(cond))) { \ + RTE_LOG(ERR, ENA, \ + "Assert failed on %s:%s:%d: ", \ + __FILE__, __func__, __LINE__); \ + rte_panic(msg); \ + } \ + } while (0) + +#endif /* __ENA_PLATFORM_H__ */ diff --git a/drivers/net/ena/rte_pmd_ena_version.map b/drivers/net/ena/rte_pmd_ena_version.map new file mode 100644 index 00000000..349c6e1c --- /dev/null +++ b/drivers/net/ena/rte_pmd_ena_version.map @@ -0,0 +1,4 @@ +DPDK_16.04 { + + local: *; +}; |