diff options
Diffstat (limited to 'src/dpdk22/drivers/net/cxgbe/cxgbe_main.c')
| -rw-r--r-- | src/dpdk22/drivers/net/cxgbe/cxgbe_main.c | 1216 |
1 files changed, 0 insertions, 1216 deletions
diff --git a/src/dpdk22/drivers/net/cxgbe/cxgbe_main.c b/src/dpdk22/drivers/net/cxgbe/cxgbe_main.c deleted file mode 100644 index aff23d0a..00000000 --- a/src/dpdk22/drivers/net/cxgbe/cxgbe_main.c +++ /dev/null @@ -1,1216 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2014-2015 Chelsio Communications. - * 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 Chelsio Communications 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 <sys/queue.h> -#include <stdio.h> -#include <errno.h> -#include <stdint.h> -#include <string.h> -#include <unistd.h> -#include <stdarg.h> -#include <inttypes.h> -#include <netinet/in.h> - -#include <rte_byteorder.h> -#include <rte_common.h> -#include <rte_cycles.h> -#include <rte_interrupts.h> -#include <rte_log.h> -#include <rte_debug.h> -#include <rte_pci.h> -#include <rte_atomic.h> -#include <rte_branch_prediction.h> -#include <rte_memory.h> -#include <rte_memzone.h> -#include <rte_tailq.h> -#include <rte_eal.h> -#include <rte_alarm.h> -#include <rte_ether.h> -#include <rte_ethdev.h> -#include <rte_atomic.h> -#include <rte_malloc.h> -#include <rte_random.h> -#include <rte_dev.h> - -#include "common.h" -#include "t4_regs.h" -#include "t4_msg.h" -#include "cxgbe.h" - -/* - * Response queue handler for the FW event queue. - */ -static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, - __rte_unused const struct pkt_gl *gl) -{ - u8 opcode = ((const struct rss_header *)rsp)->opcode; - - rsp++; /* skip RSS header */ - - /* - * FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG. - */ - if (unlikely(opcode == CPL_FW4_MSG && - ((const struct cpl_fw4_msg *)rsp)->type == - FW_TYPE_RSSCPL)) { - rsp++; - opcode = ((const struct rss_header *)rsp)->opcode; - rsp++; - if (opcode != CPL_SGE_EGR_UPDATE) { - dev_err(q->adapter, "unexpected FW4/CPL %#x on FW event queue\n", - opcode); - goto out; - } - } - - if (likely(opcode == CPL_SGE_EGR_UPDATE)) { - /* do nothing */ - } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { - const struct cpl_fw6_msg *msg = (const void *)rsp; - - t4_handle_fw_rpl(q->adapter, msg->data); - } else { - dev_err(adapter, "unexpected CPL %#x on FW event queue\n", - opcode); - } -out: - return 0; -} - -int setup_sge_fwevtq(struct adapter *adapter) -{ - struct sge *s = &adapter->sge; - int err = 0; - int msi_idx = 0; - - err = t4_sge_alloc_rxq(adapter, &s->fw_evtq, true, adapter->eth_dev, - msi_idx, NULL, fwevtq_handler, -1, NULL, 0, - rte_socket_id()); - return err; -} - -static int closest_timer(const struct sge *s, int time) -{ - unsigned int i, match = 0; - int delta, min_delta = INT_MAX; - - for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { - delta = time - s->timer_val[i]; - if (delta < 0) - delta = -delta; - if (delta < min_delta) { - min_delta = delta; - match = i; - } - } - return match; -} - -static int closest_thres(const struct sge *s, int thres) -{ - unsigned int i, match = 0; - int delta, min_delta = INT_MAX; - - for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { - delta = thres - s->counter_val[i]; - if (delta < 0) - delta = -delta; - if (delta < min_delta) { - min_delta = delta; - match = i; - } - } - return match; -} - -/** - * cxgb4_set_rspq_intr_params - set a queue's interrupt holdoff parameters - * @q: the Rx queue - * @us: the hold-off time in us, or 0 to disable timer - * @cnt: the hold-off packet count, or 0 to disable counter - * - * Sets an Rx queue's interrupt hold-off time and packet count. At least - * one of the two needs to be enabled for the queue to generate interrupts. - */ -int cxgb4_set_rspq_intr_params(struct sge_rspq *q, unsigned int us, - unsigned int cnt) -{ - struct adapter *adap = q->adapter; - unsigned int timer_val; - - if (cnt) { - int err; - u32 v, new_idx; - - new_idx = closest_thres(&adap->sge, cnt); - if (q->desc && q->pktcnt_idx != new_idx) { - /* the queue has already been created, update it */ - v = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | - V_FW_PARAMS_PARAM_X( - FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | - V_FW_PARAMS_PARAM_YZ(q->cntxt_id); - err = t4_set_params(adap, adap->mbox, adap->pf, 0, 1, - &v, &new_idx); - if (err) - return err; - } - q->pktcnt_idx = new_idx; - } - - timer_val = (us == 0) ? X_TIMERREG_RESTART_COUNTER : - closest_timer(&adap->sge, us); - - if ((us | cnt) == 0) - q->intr_params = V_QINTR_TIMER_IDX(X_TIMERREG_UPDATE_CIDX); - else - q->intr_params = V_QINTR_TIMER_IDX(timer_val) | - V_QINTR_CNT_EN(cnt > 0); - return 0; -} - -static inline bool is_x_1g_port(const struct link_config *lc) -{ - return ((lc->supported & FW_PORT_CAP_SPEED_1G) != 0); -} - -static inline bool is_x_10g_port(const struct link_config *lc) -{ - return ((lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || - (lc->supported & FW_PORT_CAP_SPEED_40G) != 0 || - (lc->supported & FW_PORT_CAP_SPEED_100G) != 0); -} - -inline void init_rspq(struct adapter *adap, struct sge_rspq *q, - unsigned int us, unsigned int cnt, - unsigned int size, unsigned int iqe_size) -{ - q->adapter = adap; - cxgb4_set_rspq_intr_params(q, us, cnt); - q->iqe_len = iqe_size; - q->size = size; -} - -int cfg_queue_count(struct rte_eth_dev *eth_dev) -{ - struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); - struct adapter *adap = pi->adapter; - struct sge *s = &adap->sge; - unsigned int max_queues = s->max_ethqsets / adap->params.nports; - - if ((eth_dev->data->nb_rx_queues < 1) || - (eth_dev->data->nb_tx_queues < 1)) - return -EINVAL; - - if ((eth_dev->data->nb_rx_queues > max_queues) || - (eth_dev->data->nb_tx_queues > max_queues)) - return -EINVAL; - - if (eth_dev->data->nb_rx_queues > pi->rss_size) - return -EINVAL; - - /* We must configure RSS, since config has changed*/ - pi->flags &= ~PORT_RSS_DONE; - - pi->n_rx_qsets = eth_dev->data->nb_rx_queues; - pi->n_tx_qsets = eth_dev->data->nb_tx_queues; - - return 0; -} - -void cfg_queues(struct rte_eth_dev *eth_dev) -{ - struct rte_config *config = rte_eal_get_configuration(); - struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); - struct adapter *adap = pi->adapter; - struct sge *s = &adap->sge; - unsigned int i, nb_ports = 0, qidx = 0; - unsigned int q_per_port = 0; - - if (!(adap->flags & CFG_QUEUES)) { - for_each_port(adap, i) { - struct port_info *tpi = adap2pinfo(adap, i); - - nb_ports += (is_x_10g_port(&tpi->link_cfg)) || - is_x_1g_port(&tpi->link_cfg) ? 1 : 0; - } - - /* - * We default up to # of cores queues per 1G/10G port. - */ - if (nb_ports) - q_per_port = (MAX_ETH_QSETS - - (adap->params.nports - nb_ports)) / - nb_ports; - - if (q_per_port > config->lcore_count) - q_per_port = config->lcore_count; - - for_each_port(adap, i) { - struct port_info *pi = adap2pinfo(adap, i); - - pi->first_qset = qidx; - - /* Initially n_rx_qsets == n_tx_qsets */ - pi->n_rx_qsets = (is_x_10g_port(&pi->link_cfg) || - is_x_1g_port(&pi->link_cfg)) ? - q_per_port : 1; - pi->n_tx_qsets = pi->n_rx_qsets; - - if (pi->n_rx_qsets > pi->rss_size) - pi->n_rx_qsets = pi->rss_size; - - qidx += pi->n_rx_qsets; - } - - s->max_ethqsets = qidx; - - for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { - struct sge_eth_rxq *r = &s->ethrxq[i]; - - init_rspq(adap, &r->rspq, 0, 0, 1024, 64); - r->usembufs = 1; - r->fl.size = (r->usembufs ? 1024 : 72); - } - - for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++) - s->ethtxq[i].q.size = 1024; - - init_rspq(adap, &adap->sge.fw_evtq, 0, 0, 1024, 64); - adap->flags |= CFG_QUEUES; - } -} - -void cxgbe_stats_get(struct port_info *pi, struct port_stats *stats) -{ - t4_get_port_stats_offset(pi->adapter, pi->tx_chan, stats, - &pi->stats_base); -} - -void cxgbe_stats_reset(struct port_info *pi) -{ - t4_clr_port_stats(pi->adapter, pi->tx_chan); -} - -static void setup_memwin(struct adapter *adap) -{ - u32 mem_win0_base; - - /* For T5, only relative offset inside the PCIe BAR is passed */ - mem_win0_base = MEMWIN0_BASE; - - /* - * Set up memory window for accessing adapter memory ranges. (Read - * back MA register to ensure that changes propagate before we attempt - * to use the new values.) - */ - t4_write_reg(adap, - PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, - MEMWIN_NIC), - mem_win0_base | V_BIR(0) | - V_WINDOW(ilog2(MEMWIN0_APERTURE) - X_WINDOW_SHIFT)); - t4_read_reg(adap, - PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, - MEMWIN_NIC)); -} - -static int init_rss(struct adapter *adap) -{ - unsigned int i; - int err; - - err = t4_init_rss_mode(adap, adap->mbox); - if (err) - return err; - - for_each_port(adap, i) { - struct port_info *pi = adap2pinfo(adap, i); - - pi->rss = rte_zmalloc(NULL, pi->rss_size, 0); - if (!pi->rss) - return -ENOMEM; - } - return 0; -} - -static void print_port_info(struct adapter *adap) -{ - int i; - char buf[80]; - struct rte_pci_addr *loc = &adap->pdev->addr; - - for_each_port(adap, i) { - const struct port_info *pi = &adap->port[i]; - char *bufp = buf; - - if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M) - bufp += sprintf(bufp, "100/"); - if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) - bufp += sprintf(bufp, "1000/"); - if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) - bufp += sprintf(bufp, "10G/"); - if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G) - bufp += sprintf(bufp, "40G/"); - if (bufp != buf) - --bufp; - sprintf(bufp, "BASE-%s", - t4_get_port_type_description( - (enum fw_port_type)pi->port_type)); - - dev_info(adap, - " " PCI_PRI_FMT " Chelsio rev %d %s %s\n", - loc->domain, loc->bus, loc->devid, loc->function, - CHELSIO_CHIP_RELEASE(adap->params.chip), buf, - (adap->flags & USING_MSIX) ? " MSI-X" : - (adap->flags & USING_MSI) ? " MSI" : ""); - } -} - -/* - * Tweak configuration based on system architecture, etc. Most of these have - * defaults assigned to them by Firmware Configuration Files (if we're using - * them) but need to be explicitly set if we're using hard-coded - * initialization. So these are essentially common tweaks/settings for - * Configuration Files and hard-coded initialization ... - */ -static int adap_init0_tweaks(struct adapter *adapter) -{ - u8 rx_dma_offset; - - /* - * Fix up various Host-Dependent Parameters like Page Size, Cache - * Line Size, etc. The firmware default is for a 4KB Page Size and - * 64B Cache Line Size ... - */ - t4_fixup_host_params_compat(adapter, CXGBE_PAGE_SIZE, L1_CACHE_BYTES, - T5_LAST_REV); - - /* - * Keep the chip default offset to deliver Ingress packets into our - * DMA buffers to zero - */ - rx_dma_offset = 0; - t4_set_reg_field(adapter, A_SGE_CONTROL, V_PKTSHIFT(M_PKTSHIFT), - V_PKTSHIFT(rx_dma_offset)); - - t4_set_reg_field(adapter, A_SGE_FLM_CFG, - V_CREDITCNT(M_CREDITCNT) | M_CREDITCNTPACKING, - V_CREDITCNT(3) | V_CREDITCNTPACKING(1)); - - t4_set_reg_field(adapter, A_SGE_CONTROL2, V_IDMAARBROUNDROBIN(1U), - V_IDMAARBROUNDROBIN(1U)); - - /* - * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux - * adds the pseudo header itself. - */ - t4_tp_wr_bits_indirect(adapter, A_TP_INGRESS_CONFIG, - F_CSUM_HAS_PSEUDO_HDR, 0); - - return 0; -} - -/* - * Attempt to initialize the adapter via a Firmware Configuration File. - */ -static int adap_init0_config(struct adapter *adapter, int reset) -{ - struct fw_caps_config_cmd caps_cmd; - unsigned long mtype = 0, maddr = 0; - u32 finiver, finicsum, cfcsum; - int ret; - int config_issued = 0; - int cfg_addr; - char config_name[20]; - - /* - * Reset device if necessary. - */ - if (reset) { - ret = t4_fw_reset(adapter, adapter->mbox, - F_PIORSTMODE | F_PIORST); - if (ret < 0) { - dev_warn(adapter, "Firmware reset failed, error %d\n", - -ret); - goto bye; - } - } - - cfg_addr = t4_flash_cfg_addr(adapter); - if (cfg_addr < 0) { - ret = cfg_addr; - dev_warn(adapter, "Finding address for firmware config file in flash failed, error %d\n", - -ret); - goto bye; - } - - strcpy(config_name, "On Flash"); - mtype = FW_MEMTYPE_CF_FLASH; - maddr = cfg_addr; - - /* - * Issue a Capability Configuration command to the firmware to get it - * to parse the Configuration File. We don't use t4_fw_config_file() - * because we want the ability to modify various features after we've - * processed the configuration file ... - */ - memset(&caps_cmd, 0, sizeof(caps_cmd)); - caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | - F_FW_CMD_REQUEST | F_FW_CMD_READ); - caps_cmd.cfvalid_to_len16 = - cpu_to_be32(F_FW_CAPS_CONFIG_CMD_CFVALID | - V_FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) | - V_FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) | - FW_LEN16(caps_cmd)); - ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), - &caps_cmd); - /* - * If the CAPS_CONFIG failed with an ENOENT (for a Firmware - * Configuration File in FLASH), our last gasp effort is to use the - * Firmware Configuration File which is embedded in the firmware. A - * very few early versions of the firmware didn't have one embedded - * but we can ignore those. - */ - if (ret == -ENOENT) { - dev_info(adapter, "%s: Going for embedded config in firmware..\n", - __func__); - - memset(&caps_cmd, 0, sizeof(caps_cmd)); - caps_cmd.op_to_write = - cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | - F_FW_CMD_REQUEST | F_FW_CMD_READ); - caps_cmd.cfvalid_to_len16 = cpu_to_be32(FW_LEN16(caps_cmd)); - ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, - sizeof(caps_cmd), &caps_cmd); - strcpy(config_name, "Firmware Default"); - } - - config_issued = 1; - if (ret < 0) - goto bye; - - finiver = be32_to_cpu(caps_cmd.finiver); - finicsum = be32_to_cpu(caps_cmd.finicsum); - cfcsum = be32_to_cpu(caps_cmd.cfcsum); - if (finicsum != cfcsum) - dev_warn(adapter, "Configuration File checksum mismatch: [fini] csum=%#x, computed csum=%#x\n", - finicsum, cfcsum); - - /* - * If we're a pure NIC driver then disable all offloading facilities. - * This will allow the firmware to optimize aspects of the hardware - * configuration which will result in improved performance. - */ - caps_cmd.niccaps &= cpu_to_be16(~(FW_CAPS_CONFIG_NIC_HASHFILTER | - FW_CAPS_CONFIG_NIC_ETHOFLD)); - caps_cmd.toecaps = 0; - caps_cmd.iscsicaps = 0; - caps_cmd.rdmacaps = 0; - caps_cmd.fcoecaps = 0; - - /* - * And now tell the firmware to use the configuration we just loaded. - */ - caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | - F_FW_CMD_REQUEST | F_FW_CMD_WRITE); - caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); - ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), - NULL); - if (ret < 0) { - dev_warn(adapter, "Unable to finalize Firmware Capabilities %d\n", - -ret); - goto bye; - } - - /* - * Tweak configuration based on system architecture, etc. - */ - ret = adap_init0_tweaks(adapter); - if (ret < 0) { - dev_warn(adapter, "Unable to do init0-tweaks %d\n", -ret); - goto bye; - } - - /* - * And finally tell the firmware to initialize itself using the - * parameters from the Configuration File. - */ - ret = t4_fw_initialize(adapter, adapter->mbox); - if (ret < 0) { - dev_warn(adapter, "Initializing Firmware failed, error %d\n", - -ret); - goto bye; - } - - /* - * Return successfully and note that we're operating with parameters - * not supplied by the driver, rather than from hard-wired - * initialization constants burried in the driver. - */ - dev_info(adapter, - "Successfully configured using Firmware Configuration File \"%s\", version %#x, computed checksum %#x\n", - config_name, finiver, cfcsum); - - return 0; - - /* - * Something bad happened. Return the error ... (If the "error" - * is that there's no Configuration File on the adapter we don't - * want to issue a warning since this is fairly common.) - */ -bye: - if (config_issued && ret != -ENOENT) - dev_warn(adapter, "\"%s\" configuration file error %d\n", - config_name, -ret); - - dev_debug(adapter, "%s: returning ret = %d ..\n", __func__, ret); - return ret; -} - -static int adap_init0(struct adapter *adap) -{ - int ret = 0; - u32 v, port_vec; - enum dev_state state; - u32 params[7], val[7]; - int reset = 1; - int mbox = adap->mbox; - - /* - * Contact FW, advertising Master capability. - */ - ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state); - if (ret < 0) { - dev_err(adap, "%s: could not connect to FW, error %d\n", - __func__, -ret); - goto bye; - } - - CXGBE_DEBUG_MBOX(adap, "%s: adap->mbox = %d; ret = %d\n", __func__, - adap->mbox, ret); - - if (ret == mbox) - adap->flags |= MASTER_PF; - - if (state == DEV_STATE_INIT) { - /* - * Force halt and reset FW because a previous instance may have - * exited abnormally without properly shutting down - */ - ret = t4_fw_halt(adap, adap->mbox, reset); - if (ret < 0) { - dev_err(adap, "Failed to halt. Exit.\n"); - goto bye; - } - - ret = t4_fw_restart(adap, adap->mbox, reset); - if (ret < 0) { - dev_err(adap, "Failed to restart. Exit.\n"); - goto bye; - } - state = (enum dev_state)((unsigned)state & ~DEV_STATE_INIT); - } - - t4_get_fw_version(adap, &adap->params.fw_vers); - t4_get_tp_version(adap, &adap->params.tp_vers); - - dev_info(adap, "fw: %u.%u.%u.%u, TP: %u.%u.%u.%u\n", - G_FW_HDR_FW_VER_MAJOR(adap->params.fw_vers), - G_FW_HDR_FW_VER_MINOR(adap->params.fw_vers), - G_FW_HDR_FW_VER_MICRO(adap->params.fw_vers), - G_FW_HDR_FW_VER_BUILD(adap->params.fw_vers), - G_FW_HDR_FW_VER_MAJOR(adap->params.tp_vers), - G_FW_HDR_FW_VER_MINOR(adap->params.tp_vers), - G_FW_HDR_FW_VER_MICRO(adap->params.tp_vers), - G_FW_HDR_FW_VER_BUILD(adap->params.tp_vers)); - - ret = t4_get_core_clock(adap, &adap->params.vpd); - if (ret < 0) { - dev_err(adap, "%s: could not get core clock, error %d\n", - __func__, -ret); - goto bye; - } - - /* - * Find out what ports are available to us. Note that we need to do - * this before calling adap_init0_no_config() since it needs nports - * and portvec ... - */ - v = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | - V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC); - ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, &v, &port_vec); - if (ret < 0) { - dev_err(adap, "%s: failure in t4_queury_params; error = %d\n", - __func__, ret); - goto bye; - } - - adap->params.nports = hweight32(port_vec); - adap->params.portvec = port_vec; - - dev_debug(adap, "%s: adap->params.nports = %u\n", __func__, - adap->params.nports); - - /* - * If the firmware is initialized already (and we're not forcing a - * master initialization), note that we're living with existing - * adapter parameters. Otherwise, it's time to try initializing the - * adapter ... - */ - if (state == DEV_STATE_INIT) { - dev_info(adap, "Coming up as %s: Adapter already initialized\n", - adap->flags & MASTER_PF ? "MASTER" : "SLAVE"); - } else { - dev_info(adap, "Coming up as MASTER: Initializing adapter\n"); - - ret = adap_init0_config(adap, reset); - if (ret == -ENOENT) { - dev_err(adap, - "No Configuration File present on adapter. Using hard-wired configuration parameters.\n"); - goto bye; - } - } - if (ret < 0) { - dev_err(adap, "could not initialize adapter, error %d\n", -ret); - goto bye; - } - - /* - * Give the SGE code a chance to pull in anything that it needs ... - * Note that this must be called after we retrieve our VPD parameters - * in order to know how to convert core ticks to seconds, etc. - */ - ret = t4_sge_init(adap); - if (ret < 0) { - dev_err(adap, "t4_sge_init failed with error %d\n", - -ret); - goto bye; - } - - /* - * Grab some of our basic fundamental operating parameters. - */ -#define FW_PARAM_DEV(param) \ - (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ - V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) - -#define FW_PARAM_PFVF(param) \ - (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ - V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param) | \ - V_FW_PARAMS_PARAM_Y(0) | \ - V_FW_PARAMS_PARAM_Z(0)) - - /* If we're running on newer firmware, let it know that we're - * prepared to deal with encapsulated CPL messages. Older - * firmware won't understand this and we'll just get - * unencapsulated messages ... - */ - params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP); - val[0] = 1; - (void)t4_set_params(adap, adap->mbox, adap->pf, 0, 1, params, val); - - /* - * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL - * capability. Earlier versions of the firmware didn't have the - * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no - * permission to use ULPTX MEMWRITE DSGL. - */ - if (is_t4(adap->params.chip)) { - adap->params.ulptx_memwrite_dsgl = false; - } else { - params[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL); - ret = t4_query_params(adap, adap->mbox, adap->pf, 0, - 1, params, val); - adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0); - } - - /* - * The MTU/MSS Table is initialized by now, so load their values. If - * we're initializing the adapter, then we'll make any modifications - * we want to the MTU/MSS Table and also initialize the congestion - * parameters. - */ - t4_read_mtu_tbl(adap, adap->params.mtus, NULL); - if (state != DEV_STATE_INIT) { - int i; - - /* - * The default MTU Table contains values 1492 and 1500. - * However, for TCP, it's better to have two values which are - * a multiple of 8 +/- 4 bytes apart near this popular MTU. - * This allows us to have a TCP Data Payload which is a - * multiple of 8 regardless of what combination of TCP Options - * are in use (always a multiple of 4 bytes) which is - * important for performance reasons. For instance, if no - * options are in use, then we have a 20-byte IP header and a - * 20-byte TCP header. In this case, a 1500-byte MSS would - * result in a TCP Data Payload of 1500 - 40 == 1460 bytes - * which is not a multiple of 8. So using an MSS of 1488 in - * this case results in a TCP Data Payload of 1448 bytes which - * is a multiple of 8. On the other hand, if 12-byte TCP Time - * Stamps have been negotiated, then an MTU of 1500 bytes - * results in a TCP Data Payload of 1448 bytes which, as - * above, is a multiple of 8 bytes ... - */ - for (i = 0; i < NMTUS; i++) - if (adap->params.mtus[i] == 1492) { - adap->params.mtus[i] = 1488; - break; - } - - t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, - adap->params.b_wnd); - } - t4_init_sge_params(adap); - t4_init_tp_params(adap); - - adap->params.drv_memwin = MEMWIN_NIC; - adap->flags |= FW_OK; - dev_debug(adap, "%s: returning zero..\n", __func__); - return 0; - - /* - * Something bad happened. If a command timed out or failed with EIO - * FW does not operate within its spec or something catastrophic - * happened to HW/FW, stop issuing commands. - */ -bye: - if (ret != -ETIMEDOUT && ret != -EIO) - t4_fw_bye(adap, adap->mbox); - return ret; -} - -/** - * t4_os_portmod_changed - handle port module changes - * @adap: the adapter associated with the module change - * @port_id: the port index whose module status has changed - * - * This is the OS-dependent handler for port module changes. It is - * invoked when a port module is removed or inserted for any OS-specific - * processing. - */ -void t4_os_portmod_changed(const struct adapter *adap, int port_id) -{ - static const char * const mod_str[] = { - NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" - }; - - const struct port_info *pi = &adap->port[port_id]; - - if (pi->mod_type == FW_PORT_MOD_TYPE_NONE) - dev_info(adap, "Port%d: port module unplugged\n", pi->port_id); - else if (pi->mod_type < ARRAY_SIZE(mod_str)) - dev_info(adap, "Port%d: %s port module inserted\n", pi->port_id, - mod_str[pi->mod_type]); - else if (pi->mod_type == FW_PORT_MOD_TYPE_NOTSUPPORTED) - dev_info(adap, "Port%d: unsupported optical port module inserted\n", - pi->port_id); - else if (pi->mod_type == FW_PORT_MOD_TYPE_UNKNOWN) - dev_info(adap, "Port%d: unknown port module inserted, forcing TWINAX\n", - pi->port_id); - else if (pi->mod_type == FW_PORT_MOD_TYPE_ERROR) - dev_info(adap, "Port%d: transceiver module error\n", - pi->port_id); - else - dev_info(adap, "Port%d: unknown module type %d inserted\n", - pi->port_id, pi->mod_type); -} - -/** - * link_start - enable a port - * @dev: the port to enable - * - * Performs the MAC and PHY actions needed to enable a port. - */ -int link_start(struct port_info *pi) -{ - struct adapter *adapter = pi->adapter; - int ret; - unsigned int mtu = pi->eth_dev->data->dev_conf.rxmode.max_rx_pkt_len; - - /* - * We do not set address filters and promiscuity here, the stack does - * that step explicitly. - */ - ret = t4_set_rxmode(adapter, adapter->mbox, pi->viid, mtu, -1, -1, - -1, 1, true); - if (ret == 0) { - ret = t4_change_mac(adapter, adapter->mbox, pi->viid, - pi->xact_addr_filt, - (u8 *)&pi->eth_dev->data->mac_addrs[0], - true, true); - if (ret >= 0) { - pi->xact_addr_filt = ret; - ret = 0; - } - } - if (ret == 0) - ret = t4_link_l1cfg(adapter, adapter->mbox, pi->tx_chan, - &pi->link_cfg); - if (ret == 0) { - /* - * Enabling a Virtual Interface can result in an interrupt - * during the processing of the VI Enable command and, in some - * paths, result in an attempt to issue another command in the - * interrupt context. Thus, we disable interrupts during the - * course of the VI Enable command ... - */ - ret = t4_enable_vi_params(adapter, adapter->mbox, pi->viid, - true, true, false); - } - return ret; -} - -/** - * cxgb4_write_rss - write the RSS table for a given port - * @pi: the port - * @queues: array of queue indices for RSS - * - * Sets up the portion of the HW RSS table for the port's VI to distribute - * packets to the Rx queues in @queues. - */ -int cxgb4_write_rss(const struct port_info *pi, const u16 *queues) -{ - u16 *rss; - int i, err; - struct adapter *adapter = pi->adapter; - const struct sge_eth_rxq *rxq; - - /* Should never be called before setting up sge eth rx queues */ - BUG_ON(!(adapter->flags & FULL_INIT_DONE)); - - rxq = &adapter->sge.ethrxq[pi->first_qset]; - rss = rte_zmalloc(NULL, pi->rss_size * sizeof(u16), 0); - if (!rss) - return -ENOMEM; - - /* map the queue indices to queue ids */ - for (i = 0; i < pi->rss_size; i++, queues++) - rss[i] = rxq[*queues].rspq.abs_id; - - err = t4_config_rss_range(adapter, adapter->pf, pi->viid, 0, - pi->rss_size, rss, pi->rss_size); - /* - * If Tunnel All Lookup isn't specified in the global RSS - * Configuration, then we need to specify a default Ingress - * Queue for any ingress packets which aren't hashed. We'll - * use our first ingress queue ... - */ - if (!err) - err = t4_config_vi_rss(adapter, adapter->mbox, pi->viid, - F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN | - F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN | - F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN | - F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN | - F_FW_RSS_VI_CONFIG_CMD_UDPEN, - rss[0]); - rte_free(rss); - return err; -} - -/** - * setup_rss - configure RSS - * @adapter: the adapter - * - * Sets up RSS to distribute packets to multiple receive queues. We - * configure the RSS CPU lookup table to distribute to the number of HW - * receive queues, and the response queue lookup table to narrow that - * down to the response queues actually configured for each port. - * We always configure the RSS mapping for all ports since the mapping - * table has plenty of entries. - */ -int setup_rss(struct port_info *pi) -{ - int j, err; - struct adapter *adapter = pi->adapter; - - dev_debug(adapter, "%s: pi->rss_size = %u; pi->n_rx_qsets = %u\n", - __func__, pi->rss_size, pi->n_rx_qsets); - - if (!pi->flags & PORT_RSS_DONE) { - if (adapter->flags & FULL_INIT_DONE) { - /* Fill default values with equal distribution */ - for (j = 0; j < pi->rss_size; j++) - pi->rss[j] = j % pi->n_rx_qsets; - - err = cxgb4_write_rss(pi, pi->rss); - if (err) - return err; - pi->flags |= PORT_RSS_DONE; - } - } - return 0; -} - -/* - * Enable NAPI scheduling and interrupt generation for all Rx queues. - */ -static void enable_rx(struct adapter *adap) -{ - struct sge *s = &adap->sge; - struct sge_rspq *q = &s->fw_evtq; - int i, j; - - /* 0-increment GTS to start the timer and enable interrupts */ - t4_write_reg(adap, MYPF_REG(A_SGE_PF_GTS), - V_SEINTARM(q->intr_params) | - V_INGRESSQID(q->cntxt_id)); - - for_each_port(adap, i) { - const struct port_info *pi = &adap->port[i]; - struct rte_eth_dev *eth_dev = pi->eth_dev; - - for (j = 0; j < eth_dev->data->nb_rx_queues; j++) { - q = eth_dev->data->rx_queues[j]; - - /* - * 0-increment GTS to start the timer and enable - * interrupts - */ - t4_write_reg(adap, MYPF_REG(A_SGE_PF_GTS), - V_SEINTARM(q->intr_params) | - V_INGRESSQID(q->cntxt_id)); - } - } -} - -/** - * cxgb_up - enable the adapter - * @adap: adapter being enabled - * - * Called when the first port is enabled, this function performs the - * actions necessary to make an adapter operational, such as completing - * the initialization of HW modules, and enabling interrupts. - */ -int cxgbe_up(struct adapter *adap) -{ - enable_rx(adap); - t4_sge_tx_monitor_start(adap); - t4_intr_enable(adap); - adap->flags |= FULL_INIT_DONE; - - /* TODO: deadman watchdog ?? */ - return 0; -} - -/* - * Close the port - */ -int cxgbe_down(struct port_info *pi) -{ - struct adapter *adapter = pi->adapter; - int err = 0; - - err = t4_enable_vi(adapter, adapter->mbox, pi->viid, false, false); - if (err) { - dev_err(adapter, "%s: disable_vi failed: %d\n", __func__, err); - return err; - } - - t4_reset_link_config(adapter, pi->port_id); - return 0; -} - -/* - * Release resources when all the ports have been stopped. - */ -void cxgbe_close(struct adapter *adapter) -{ - struct port_info *pi; - int i; - - if (adapter->flags & FULL_INIT_DONE) { - t4_intr_disable(adapter); - t4_sge_tx_monitor_stop(adapter); - t4_free_sge_resources(adapter); - for_each_port(adapter, i) { - pi = adap2pinfo(adapter, i); - if (pi->viid != 0) - t4_free_vi(adapter, adapter->mbox, - adapter->pf, 0, pi->viid); - rte_free(pi->eth_dev->data->mac_addrs); - } - adapter->flags &= ~FULL_INIT_DONE; - } - - if (adapter->flags & FW_OK) - t4_fw_bye(adapter, adapter->mbox); -} - -int cxgbe_probe(struct adapter *adapter) -{ - struct port_info *pi; - int func, i; - int err = 0; - - func = G_SOURCEPF(t4_read_reg(adapter, A_PL_WHOAMI)); - adapter->mbox = func; - adapter->pf = func; - - t4_os_lock_init(&adapter->mbox_lock); - TAILQ_INIT(&adapter->mbox_list); - - err = t4_prep_adapter(adapter); - if (err) - return err; - - setup_memwin(adapter); - err = adap_init0(adapter); - if (err) { - dev_err(adapter, "%s: Adapter initialization failed, error %d\n", - __func__, err); - goto out_free; - } - - if (!is_t4(adapter->params.chip)) { - /* - * The userspace doorbell BAR is split evenly into doorbell - * regions, each associated with an egress queue. If this - * per-queue region is large enough (at least UDBS_SEG_SIZE) - * then it can be used to submit a tx work request with an - * implied doorbell. Enable write combining on the BAR if - * there is room for such work requests. - */ - int s_qpp, qpp, num_seg; - - s_qpp = (S_QUEUESPERPAGEPF0 + - (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * - adapter->pf); - qpp = 1 << ((t4_read_reg(adapter, - A_SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp) - & M_QUEUESPERPAGEPF0); - num_seg = CXGBE_PAGE_SIZE / UDBS_SEG_SIZE; - if (qpp > num_seg) - dev_warn(adapter, "Incorrect SGE EGRESS QUEUES_PER_PAGE configuration, continuing in debug mode\n"); - - adapter->bar2 = (void *)adapter->pdev->mem_resource[2].addr; - if (!adapter->bar2) { - dev_err(adapter, "cannot map device bar2 region\n"); - err = -ENOMEM; - goto out_free; - } - t4_write_reg(adapter, A_SGE_STAT_CFG, V_STATSOURCE_T5(7) | - V_STATMODE(0)); - } - - for_each_port(adapter, i) { - char name[RTE_ETH_NAME_MAX_LEN]; - struct rte_eth_dev_data *data = NULL; - const unsigned int numa_node = rte_socket_id(); - - pi = &adapter->port[i]; - pi->adapter = adapter; - pi->xact_addr_filt = -1; - pi->port_id = i; - - snprintf(name, sizeof(name), "cxgbe%d", - adapter->eth_dev->data->port_id + i); - - if (i == 0) { - /* First port is already allocated by DPDK */ - pi->eth_dev = adapter->eth_dev; - goto allocate_mac; - } - - /* - * now do all data allocation - for eth_dev structure, - * and internal (private) data for the remaining ports - */ - - /* reserve an ethdev entry */ - pi->eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI); - if (!pi->eth_dev) - goto out_free; - - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (!data) - goto out_free; - - data->port_id = adapter->eth_dev->data->port_id + i; - - pi->eth_dev->data = data; - -allocate_mac: - pi->eth_dev->pci_dev = adapter->pdev; - pi->eth_dev->data->dev_private = pi; - pi->eth_dev->driver = adapter->eth_dev->driver; - pi->eth_dev->dev_ops = adapter->eth_dev->dev_ops; - pi->eth_dev->tx_pkt_burst = adapter->eth_dev->tx_pkt_burst; - pi->eth_dev->rx_pkt_burst = adapter->eth_dev->rx_pkt_burst; - TAILQ_INIT(&pi->eth_dev->link_intr_cbs); - - pi->eth_dev->data->mac_addrs = rte_zmalloc(name, - ETHER_ADDR_LEN, 0); - if (!pi->eth_dev->data->mac_addrs) { - dev_err(adapter, "%s: Mem allocation failed for storing mac addr, aborting\n", - __func__); - err = -1; - goto out_free; - } - } - - if (adapter->flags & FW_OK) { - err = t4_port_init(adapter, adapter->mbox, adapter->pf, 0); - if (err) { - dev_err(adapter, "%s: t4_port_init failed with err %d\n", - __func__, err); - goto out_free; - } - } - - cfg_queues(adapter->eth_dev); - - print_port_info(adapter); - - err = init_rss(adapter); - if (err) - goto out_free; - - return 0; - -out_free: - for_each_port(adapter, i) { - pi = adap2pinfo(adapter, i); - if (pi->viid != 0) - t4_free_vi(adapter, adapter->mbox, adapter->pf, - 0, pi->viid); - /* Skip first port since it'll be de-allocated by DPDK */ - if (i == 0) - continue; - if (pi->eth_dev->data) - rte_free(pi->eth_dev->data); - } - - if (adapter->flags & FW_OK) - t4_fw_bye(adapter, adapter->mbox); - return -err; -} |