/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/session/application_namespace.h>
#include <vnet/session/session_table.h>
#include <vnet/session/session.h>
#include <vnet/fib/fib_table.h>
/**
* Hash table of application namespaces by app ns ids
*/
uword *app_namespace_lookup_table;
/**
* Pool of application namespaces
*/
static app_namespace_t *app_namespace_pool;
app_namespace_t *
app_namespace_get (u32 index)
{
return pool_elt_at_index (app_namespace_pool, index);
}
app_namespace_t *
app_namespace_get_from_id (const u8 * ns_id)
{
u32 index = app_namespace_index_from_id (ns_id);
if (index == APP_NAMESPACE_INVALID_INDEX)
return 0;
return app_namespace_get (index);
}
u32
app_namespace_index (app_namespace_t * app_ns)
{
return (app_ns - app_namespace_pool);
}
app_namespace_t *
app_namespace_alloc (u8 * ns_id)
{
app_namespace_t *app_ns;
pool_get (app_namespace_pool, app_ns);
memset (app_ns, 0, sizeof (*app_ns));
app_ns->ns_id = vec_dup (ns_id);
hash_set_mem (app_namespace_lookup_table, app_ns->ns_id,
app_ns - app_namespace_pool);
return app_ns;
}
clib_error_t *
vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a)
{
app_namespace_t *app_ns;
session_table_t *st;
if (a->is_add)
{
if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX
&& !vnet_get_sw_interface_safe (vnet_get_main (), a->sw_if_index))
return clib_error_return_code (0, VNET_API_ERROR_INVALID_SW_IF_INDEX,
0, "sw_if_index %u doesn't exist",
a->sw_if_index);
if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX)
{
a->ip4_fib_id =
fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP4,
a->sw_if_index);
a->ip6_fib_id =
fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP6,
a->sw_if_index);
}
if (a->sw_if_index == APP_NAMESPACE_INVALID_INDEX
&& a->ip4_fib_id == APP_NAMESPACE_INVALID_INDEX)
return clib_error_return_code (0, VNET_API_ERROR_INVALID_VALUE, 0,
"sw_if_index or fib_id must be "
"configured");
app_ns = app_namespace_get_from_id (a->ns_id);
if (!app_ns)
{
app_ns = app_namespace_alloc (a->ns_id);
st = session_table_alloc ();
session_table_init (st, FIB_PROTOCOL_MAX);
st->is_local = 1;
st->appns_index = app_namespace_index (app_ns);
app_ns->local_table_index = session_table_index (st);
}
app_ns->ns_secret = a->secret;
app_ns->sw_if_index = a->sw_if_index;
app_ns->ip4_fib_index =
fib_table_find (FIB_PROTOCOL_IP4, a->ip4_fib_id);
app_ns->ip6_fib_index =
fib_table_find (FIB_PROTOCOL_IP6, a->ip6_fib_id);
session_lookup_set_tables_appns (app_ns);
}
else
{
return clib_error_return_code (0, VNET_API_ERROR_UNIMPLEMENTED, 0,
"namespace deletion not supported");
}
return 0;
}
const u8 *
app_namespace_id (app_namespace_t * app_ns)
{
return app_ns->ns_id;
}
u32
app_namespace_index_from_id (const u8 * ns_id)
{
uword *indexp;
indexp = hash_get_mem (app_namespace_lookup_table, ns_id);
if (!indexp)
return APP_NAMESPACE_INVALID_INDEX;
return *indexp;
}
const u8 *
app_namespace_id_from_index (u32 index)
{
app_namespace_t *app_ns;
app_ns = app_namespace_get (index);
return app_namespace_id (app_ns);
}
u32
app_namespace_get_fib_index (app_namespace_t * app_ns, u8 fib_proto)
{
return fib_proto == FIB_PROTOCOL_IP4 ?
app_ns->ip4_fib_index : app_ns->ip6_fib_index;
}
session_table_t *
app_namespace_get_local_table (app_namespace_t * app_ns)
{
return session_table_get (app_ns->local_table_index);
}
void
app_namespaces_init (void)
{
u8 *ns_id = format (0, "default");
if (!app_namespace_lookup_table)
app_namespace_lookup_table =
hash_create_vec (0, sizeof (u8), sizeof (uword));
/*
* Allocate default namespace
*/
vnet_app_namespace_add_del_args_t a = {
.ns_id = ns_id,
.secret = 0,
.sw_if_index = APP_NAMESPACE_INVALID_INDEX,
.is_add = 1
};
vnet_app_namespace_add_del (&a);
vec_free (ns_id);
}
static clib_error_t *
app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0;
u32 sw_if_index, fib_id = APP_NAMESPACE_INVALID_INDEX;
u64 secret;
clib_error_t *error = 0;
session_cli_return_if_not_enabled ();
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "add"))
is_add = 1;
else if (unformat (line_input, "id %_%v%_", &ns_id))
;
else if (unformat (line_input, "secret %lu", &secret))
secret_set = 1;
else if (unformat (line_input, "sw_if_index %u", &sw_if_index))
sw_if_index_set = 1;
else if (unformat (line_input, "fib_id", &fib_id))
;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
unformat_free (line_input);
return error;
}
}
unformat_free (line_input);
if (!ns_id || !secret_set || !sw_if_index_set)
{
vlib_cli_output (vm, "namespace-id, secret and sw_if_index must be "
"provided");
return 0;
}
if (is_add)
{
vnet_app_namespace_add_del_args_t args = {
.ns_id = ns_id,
.secret = secret,
.sw_if_index = sw_if_index,
.ip4_fib_id = fib_id,
.is_add = 1
};
error = vnet_app_namespace_add_del (&args);
}
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (app_ns_command, static) =
{
.path = "app ns",
.short_help = "app ns [add] id <namespace-id> secret <secret> "
"sw_if_index <sw_if_index>",
.function = app_ns_fn,
};
/* *INDENT-ON* */
u8 *
format_app_namespace (u8 * s, va_list * args)
{
app_namespace_t *app_ns = va_arg (*args, app_namespace_t *);
s = format (s, "%-10u%-20lu%-20u%-50v", app_namespace_index (app_ns),
app_ns->ns_secret, app_ns->sw_if_index, app_ns->ns_id);
return s;
}
static clib_error_t *
show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
app_namespace_t *app_ns;
session_table_t *st;
u8 *ns_id, do_table = 0, had_input = 1;
session_cli_return_if_not_enabled ();
if (!unformat_user (main_input/*
*------------------------------------------------------------------
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vlib/pci/pci.h>
#include <vnet/ethernet/ethernet.h>
#include <avf/avf.h>
#define AVF_MBOX_LEN 64
#define AVF_MBOX_BUF_SZ 512
#define AVF_RXQ_SZ 512
#define AVF_TXQ_SZ 512
#define AVF_ITR_INT 8160
#define PCI_VENDOR_ID_INTEL 0x8086
#define PCI_DEVICE_ID_INTEL_AVF 0x1889
#define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
#define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
avf_main_t avf_main;
static pci_device_id_t avf_pci_device_ids[] = {
{.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
{.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
{.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
{0},
};
static inline void
avf_irq_0_disable (avf_device_t * ad)
{
u32 dyn_ctl0 = 0, icr0_ena = 0;
dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
avf_reg_flush (ad);
}
static inline void
avf_irq_0_enable (avf_device_t * ad)
{
u32 dyn_ctl0 = 0, icr0_ena = 0;
icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
//dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
avf_irq_0_disable (ad);
avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
avf_reg_flush (ad);
}
static inline void
avf_irq_n_disable (avf_device_t * ad, u8 line)
{
u32 dyn_ctln = 0;
avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
avf_reg_flush (ad);
}
static inline void
avf_irq_n_enable (avf_device_t * ad, u8 line)
{
u32 dyn_ctln = 0;
dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
dyn_ctln |= (1 << 1); /* [1] Clear PBA */
dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
avf_irq_n_disable (ad, line);
avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
avf_reg_flush (ad);
}
clib_error_t *
avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
void *data, int len)
{
avf_main_t *am = &avf_main;
clib_error_t *err = 0;
avf_aq_desc_t *d, dc;
int n_retry = 5;
d = &ad->atq[ad->atq_next_slot];
clib_memcpy (d, dt, sizeof (avf_aq_desc_t));
d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
if (len)
d->datalen = len;
if (len)
{
u64 pa;
pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
d->addr_hi = (u32) (pa >> 32);
d->addr_lo = (u32) pa;
clib_memcpy (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ, data,
len);
d->flags |= AVF_AQ_F_BUF;
}
if (ad->flags & AVF_DEVICE_F_ELOG)
clib_memcpy (&dc, d, sizeof (avf_aq_desc_t));
CLIB_MEMORY_BARRIER ();
vlib_log_debug (am->log_class, "%U", format_hexdump, data, len);
ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
avf_reg_flush (ad);
retry:
vlib_process_suspend (vm, 10e-6);
if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
{
if (--n_retry == 0)
{
err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
d->opcode);
goto done;
}
goto retry;
}
clib_memcpy (dt, d, sizeof (avf_aq_desc_t));
if (d->flags & AVF_AQ_F_ERR)
return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
"%d]", d->opcode, d->retval);
done:
if (ad->flags & AVF_DEVICE_F_ELOG)
{
/* *INDENT-OFF* */
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
"datalen %d retval %d",
.format_args = "i4i2i2i2i2i2",
};
struct
{
u32 dev_instance;
u16 s_flags;
u16 r_flags;
u16 opcode;
u16 datalen;
u16 retval;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->s_flags = dc.flags;
ed->r_flags = d->flags;
ed->opcode = dc.opcode;
ed->datalen = dc.datalen;
ed->retval = d->retval;
/* *INDENT-ON* */
}
return err;
}
clib_error_t *
avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
u32 val)
{
clib_error_t *err;
avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
if (ad->flags & AVF_DEVICE_F_ELOG)
{
/* *INDENT-OFF* */
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
.format_args = "i4i4i4",
};
struct
{
u32 dev_instance;
u32 reg;
u32 val;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->reg = reg;
ed->val = val;
/* *INDENT-ON* */
}
return err;
}
clib_error_t *
avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
{
avf_main_t *am = &avf_main;
avf_rxq_t *rxq;
clib_error_t *error = 0;
u32 n_alloc, i;
vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
rxq = vec_elt_at_index (ad->rxqs, qid);
rxq->size = rxq_size;
rxq->next = 0;
rxq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
rxq->size * sizeof (avf_rx_desc_t),
2 * CLIB_CACHE_LINE_BYTES);
memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
n_alloc = vlib_buffer_alloc (vm, rxq->bufs, rxq->size - 8);
if (n_alloc == 0)
return clib_error_return (0, "buffer allocation error");
rxq->n_enqueued = n_alloc;
avf_rx_desc_t *d = rxq->descs;
for (i = 0; i < n_alloc; i++)
{
vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
if (ad->flags & AVF_DEVICE_F_IOVA)
d->qword[0] = vlib_buffer_get_va (b);
else
d->qword[0] = vlib_buffer_get_pa (vm, b);
d++;
}
ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
return 0;
}
clib_error_t *
avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
{
avf_main_t *am = &avf_main;
avf_txq_t *txq;
clib_error_t *error = 0;
if (qid >= ad->num_queue_pairs)
{
qid = qid % ad->num_queue_pairs;
txq = vec_elt_at_index (ad->txqs, qid);
if (txq->lock == 0)
clib_spinlock_init (&txq->lock);
ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
return 0;
}
vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
txq = vec_elt_at_index (ad->txqs, qid);
txq->size = txq_size;
txq->next = 0;
txq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
txq->size * sizeof (avf_tx_desc_t),
2 * CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
return 0;
}
typedef struct
{
u16 vsi_id;
u16 flags;
} virtchnl_promisc_info_t;
void
avf_arq_slot_init (avf_device_t * ad, u16 slot)
{
avf_aq_desc_t *d;
u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
d = &ad->arq[slot];
memset (d, 0, sizeof (avf_aq_desc_t));
d->flags = AVF_AQ_F_BUF;
d->datalen = AVF_MBOX_BUF_SZ;
d->addr_hi = (u32) (pa >> 32);
d->addr_lo = (u32) pa;
}
static inline uword
avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
{
avf_main_t *am = &avf_main;
return (ad->flags & AVF_DEVICE_F_IOVA) ?
pointer_to_uword (p) :
vlib_physmem_virtual_to_physical (vm, am->physmem_region, p);
}
static void
avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
{
u64 pa;
int i;
/* VF MailBox Transmit */
memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
pa = avf_dma_addr (vm, ad, ad->atq);
avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
avf_reg_write (ad, AVF_ATQH, 0); /* Head */
avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
/* VF MailBox Receive */
memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
for (i = 0; i < AVF_MBOX_LEN; i++)
avf_arq_slot_init (ad, i);
pa = avf_dma_addr (vm, ad, ad->arq);
avf_reg_write (ad, AVF_ARQH, 0); /* Head */
avf_reg_write (ad, AVF_ARQT, 0); /* Head */
avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
ad->atq_next_slot = 0;
ad->arq_next_slot = 0;
}
clib_error_t *
avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
void *in, int in_len, void *out, int out_len)
{
clib_error_t *err;
avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
u32 head;
int n_retry = 5;
/* supppres interrupt in the next adminq receive slot
as we are going to wait for response
we only need interrupts when event is received */
d = &ad->arq[ad->arq_next_slot];
d->flags |= AVF_AQ_F_SI;
if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
return err;
retry:
head = avf_get_u32 (ad->bar0, AVF_ARQH);
if (ad->arq_next_slot == head)
{
if (--n_retry == 0)
return clib_error_return (0, "timeout");
vlib_process_suspend (vm, 10e-3);
goto retry;
}
d = &ad->arq[ad->arq_next_slot];
if (d->v_opcode == VIRTCHNL_OP_EVENT)
{
void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
virtchnl_pf_event_t *e;
if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
((d->flags & AVF_AQ_F_BUF) == 0))
return clib_error_return (0, "event message error");
vec_add2 (ad->events, e, 1);
clib_memcpy (e, buf, sizeof (virtchnl_pf_event_t));
avf_arq_slot_init (ad, ad->arq_next_slot);
ad->arq_next_slot++;
n_retry = 5;
goto retry;
}
if (d->v_opcode != op)
{
err =
clib_error_return (0,
"unexpected message receiver [v_opcode = %u, "
"expected %u, v_retval %d]", d->v_opcode, op,
d->v_retval);
goto done;
}
if (d->v_retval)
{
err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
d->v_opcode, d->v_retval);
goto done;
}
if (d->flags & AVF_AQ_F_BUF)
{
void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
clib_memcpy (out, buf, out_len);
}
avf_arq_slot_init (ad, ad->arq_next_slot);
avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
avf_reg_flush (ad);
ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
done:
if (ad->flags & AVF_DEVICE_F_ELOG)
{
/* *INDENT-OFF* */
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
.format_args = "i4t4i4i4",
.n_enum_strings = VIRTCHNL_N_OPS,
.enum_strings = {
#define _(v, n) [v] = #n,
foreach_virtchnl_op
#undef _
},
};
struct
{
u32 dev_instance;
u32 v_opcode;
u32 v_opcode_val;
u32 v_retval;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->v_opcode = op;
ed->v_opcode_val = op;
ed->v_retval = d->v_retval;
/* *INDENT-ON* */
}
return err;
}
clib_error_t *
avf_op_version (vlib_main_t * vm, avf_device_t * ad,
virtchnl_version_info_t * ver)
{
clib_error_t *err = 0;
virtchnl_version_info_t myver = {
.major = VIRTCHNL_VERSION_MAJOR,
.minor = VIRTCHNL_VERSION_MINOR,
};
err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
sizeof (virtchnl_version_info_t), ver,
sizeof (virtchnl_version_info_t));
if (err)
return err;
return err;
}
clib_error_t *
avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
virtchnl_vf_resource_t * res)
{
u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
VIRTCHNL_VF_OFFLOAD_RX_POLLING);
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
}
clib_error_t *
avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
{
int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
int i;
u8 msg[msg_len];
virtchnl_rss_lut_t *rl;
memset (msg, 0, msg_len);
rl = (virtchnl_rss_lut_t *) msg;
rl->vsi_id = ad->vsi_id;
rl->lut_entries = ad->rss_lut_size;
for (i = 0; i < ad->rss_lut_size; i++)
rl->lut[i] = i % ad->n_rx_queues;
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
0);
}
clib_error_t *
avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
{
int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
int i;
u8 msg[msg_len];
virtchnl_rss_key_t *rk;
memset (msg, 0, msg_len);
rk = (virtchnl_rss_key_t *) msg;
rk->vsi_id = ad->vsi_id;
rk->key_len = ad->rss_key_size;
u32 seed = random_default_seed ();
for (i = 0; i < ad->rss_key_size; i++)
rk->key[i] = (u8) random_u32 (&seed);
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
0);
}
clib_error_t *
avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
{
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
0);
}
clib_error_t *
avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
{
virtchnl_promisc_info_t pi = { 0 };
pi.vsi_id = ad->vsi_id;
pi.flags = 1;
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
sizeof (virtchnl_promisc_info_t), 0, 0);
}
clib_error_t *
avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
{
int i;
int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
sizeof (virtchnl_queue_pair_info_t);
u8 msg[msg_len];
virtchnl_vsi_queue_config_info_t *ci;
memset (msg, 0, msg_len);
ci = (virtchnl_vsi_queue_config_info_t *) msg;
ci->vsi_id = ad->vsi_id;
ci->num_queue_pairs = n_qp;
for (i = 0; i < n_qp; i++)
{
virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
rxq->vsi_id = ad->vsi_id;
rxq->queue_id = i;
rxq->max_pkt_size = 1518;
if (i < vec_len (ad->rxqs))
{
avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
rxq->ring_len = q->size;
rxq->databuffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
}
avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
txq->vsi_id = ad->vsi_id;
if (i < vec_len (ad->txqs))
{
txq->queue_id = i;
txq->ring_len = q->size;
txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
}
}
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
0, 0);
}
clib_error_t *
avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
{
int count = 1;
int msg_len = sizeof (virtchnl_irq_map_info_t) +
count * sizeof (virtchnl_vector_map_t);
u8 msg[msg_len];
virtchnl_irq_map_info_t *imi;
memset (msg, 0, msg_len);
imi = (virtchnl_irq_map_info_t *) msg;
imi->num_vectors = count;
imi->vecmap[0].vector_id = 1;
imi->vecmap[0].vsi_id = ad->vsi_id;
imi->vecmap[0].rxq_map = 1;
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
0);
}
clib_error_t *
avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
{
int msg_len =
sizeof (virtchnl_ether_addr_list_t) +
count * sizeof (virtchnl_ether_addr_t);
u8 msg[msg_len];
virtchnl_ether_addr_list_t *al;
int i;
memset (msg, 0, msg_len);
al = (virtchnl_ether_addr_list_t *) msg;
al->vsi_id = ad->vsi_id;
al->num_elements = count;
for (i = 0; i < count; i++)
clib_memcpy (&al->list[i].addr, macs + i * 6, 6);
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
0);
}
clib_error_t *
avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
{
virtchnl_queue_select_t qs = { 0 };
int i;
qs.vsi_id = ad->vsi_id;
qs.rx_queues = rx;
qs.tx_queues = tx;
for (i = 0; i < ad->n_rx_queues; i++)
{
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
}
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
sizeof (virtchnl_queue_select_t), 0, 0);
}
clib_error_t *
avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
virtchnl_eth_stats_t * es)
{
virtchnl_queue_select_t qs = { 0 };
qs.vsi_id = ad->vsi_id;
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
&qs, sizeof (virtchnl_queue_select_t),
es, sizeof (virtchnl_eth_stats_t));
}
clib_error_t *
avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
{
avf_aq_desc_t d = { 0 };
clib_error_t *error;
u32 rstat;
int n_retry = 20;
d.opcode = 0x801;
d.v_opcode = VIRTCHNL_OP_RESET_VF;
if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
return error;
retry:
vlib_process_suspend (vm, 10e-3);
rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
if (rstat == 2 || rstat == 3)
return 0;
if (--n_retry == 0)
return clib_error_return (0, "reset failed (timeout)");
goto retry;
}
clib_error_t *
avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
{
virtchnl_vf_res_request_t res_req = { 0 };
clib_error_t *error;
u32 rstat;
int n_retry = 20;
res_req.num_queue_pairs = num_queue_pairs;
error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
sizeof (virtchnl_vf_res_request_t), &res_req,
sizeof (virtchnl_vf_res_request_t));
/*
* if PF respondes, the request failed
* else PF initializes restart and avf_send_to_pf returns an error
*/
if (!error)
{
return clib_error_return (0, "requested more than %u queue pairs",
res_req.num_queue_pairs);
}
retry:
vlib_process_suspend (vm, 10e-3);
rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
goto done;
if (--n_retry == 0)
return clib_error_return (0, "reset failed (timeout)");
goto retry;
done:
return NULL;
}
clib_error_t *
avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
avf_create_if_args_t * args)
{
virtchnl_version_info_t ver = { 0 };
virtchnl_vf_resource_t res = { 0 };
clib_error_t *error;
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i;
avf_adminq_init (vm, ad);
/* request more queues only if we need them */
if ((error = avf_request_queues (vm, ad, tm->n_vlib_mains)))
{
/* we failed to get more queues, but still we want to proceed */
clib_error_free (error);
if ((error = avf_device_reset (vm, ad)))
return error;
}
avf_adminq_init (vm, ad);
/*
* OP_VERSION
*/
if ((error = avf_op_version (vm, ad, &ver)))
return error;
if (ver.major != VIRTCHNL_VERSION_MAJOR ||
ver.minor != VIRTCHNL_VERSION_MINOR)
return clib_error_return (0, "incompatible protocol version "
"(remote %d.%d)", ver.major, ver.minor);
/*
* OP_GET_VF_RESOUCES
*/
if ((error = avf_op_get_vf_resources (vm, ad, &res)))
return error;
if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
ad->vsi_id = res.vsi_res[0].vsi_id;
ad->feature_bitmap = res.vf_offload_flags;
ad->num_queue_pairs = res.num_queue_pairs;
ad->max_vectors = res.max_vectors;
ad->max_mtu = res.max_mtu;
ad->rss_key_size = res.rss_key_size;
ad->rss_lut_size = res.rss_lut_size;
clib_memcpy (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
/*
* Disable VLAN stripping
*/
if ((error = avf_op_disable_vlan_stripping (vm, ad)))
return error;
if ((error = avf_config_promisc_mode (vm, ad)))
return error;
/*
* Init Queues
*/
if (args->rxq_num == 0)
{
args->rxq_num = 1;
}
else if (args->rxq_num > ad->num_queue_pairs)
{
args->rxq_num = ad->num_queue_pairs;
vlib_log_warn (am->log_class, "Requested more rx queues than"
"queue pairs available. Using %u rx queues.",
args->rxq_num);
}
for (i = 0; i < args->rxq_num; i++)
if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
return error;
for (i = 0; i < tm->n_vlib_mains; i++)
if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
return error;
if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
(error = avf_op_config_rss_lut (vm, ad)))
return error;
if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
(error = avf_op_config_rss_key (vm, ad)))
return error;
if ((error = avf_op_config_vsi_queues (vm, ad)))
return error;
if ((error = avf_op_config_irq_map (vm, ad)))
return error;
avf_irq_0_enable (ad);
for (i = 0; i < ad->n_rx_queues; i++)
avf_irq_n_enable (ad, i);
if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
return error;
if ((error = avf_op_enable_queues (vm, ad, ad->n_rx_queues, 0)))
return error;
if ((error = avf_op_enable_queues (vm, ad, 0, ad->n_tx_queues)))
return error;
ad->flags |= AVF_DEVICE_F_INITIALIZED;
return error;
}
void
avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
{
avf_main_t *am = &avf_main;
vnet_main_t *vnm = vnet_get_main ();
virtchnl_pf_event_t *e;
u32 r;
if (ad->flags & AVF_DEVICE_F_ERROR)
return;
if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
return;
ASSERT (ad->error == 0);
/* do not process device in reset state */
r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
if (r != VIRTCHNL_VFR_VFACTIVE)
return;
r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
if ((r & 0xf0000000) != (1ULL << 31))
{
ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
goto error;
}
r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
if ((r & 0xf0000000) != (1ULL << 31))
{
ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
goto error;
}
if (is_irq == 0)
avf_op_get_stats (vm, ad, &ad->eth_stats);
/* *INDENT-OFF* */
vec_foreach (e, ad->events)
{
if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
{
int link_up = e->event_data.link_event.link_status;
virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
u32 flags = 0;
if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
{
ad->flags |= AVF_DEVICE_F_LINK_UP;
flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
VNET_HW_INTERFACE_FLAG_LINK_UP);
if (speed == VIRTCHNL_LINK_SPEED_40GB)
flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
else if (speed == VIRTCHNL_LINK_SPEED_25GB)
flags |= VNET_HW_INTERFACE_FLAG_SPEED_25G;
else if (speed == VIRTCHNL_LINK_SPEED_10GB)
flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
else if (speed == VIRTCHNL_LINK_SPEED_1GB)
flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
else if (speed == VIRTCHNL_LINK_SPEED_100MB)
flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
ad->link_speed = speed;
}
else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
{
ad->flags &= ~AVF_DEVICE_F_LINK_UP;
ad->link_speed = 0;
}
if (ad->flags & AVF_DEVICE_F_ELOG)
{
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] link change: link_status %d "
"link_speed %d",
.format_args = "i4i1i1",
};
struct
{
u32 dev_instance;
u8 link_status;
u8 link_speed;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->link_status = link_up;
ed->link_speed = speed;
}
}
else
{
if (ad->flags & AVF_DEVICE_F_ELOG)
{
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] unknown event: event %d severity %d",
.format_args = "i4i4i1i1",
};
struct
{
u32 dev_instance;
u32 event;
u32 severity;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->event = e->event;
ed->severity = e->severity;
}
}
}
/* *INDENT-ON* */
vec_reset_length (ad->events);
return;
error:
ad->flags |= AVF_DEVICE_F_ERROR;
ASSERT (ad->error != 0);
vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
}
static u32
avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
{
avf_main_t *am = &avf_main;
vlib_log_warn (am->log_class, "TODO");
return 0;
}
static uword
avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
{
avf_main_t *am = &avf_main;
avf_device_t *ad;
uword *event_data = 0, event_type;
int enabled = 0, irq;
f64 last_run_duration = 0;
f64 last_periodic_time = 0;
while (1)
{
if (enabled)
vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
else
vlib_process_wait_for_event (vm);
event_type = vlib_process_get_events (vm, &event_data);
vec_reset_length (event_data);
irq = 0;
switch (event_type)
{
case ~0:
last_periodic_time = vlib_time_now (vm);
break;
case AVF_PROCESS_EVENT_START:
enabled = 1;
break;
case AVF_PROCESS_EVENT_STOP:
enabled = 0;
continue;
case AVF_PROCESS_EVENT_AQ_INT:
irq = 1;
break;
default:
ASSERT (0);
}
/* *INDENT-OFF* */
pool_foreach (ad, am->devices,
{
avf_process_one_device (vm, ad, irq);
});
/* *INDENT-ON* */
last_run_duration = vlib_time_now (vm) - last_periodic_time;
}
return 0;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (avf_process_node, static) = {
.function = avf_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "avf-process",
};
/* *INDENT-ON* */
static void
avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
{
avf_main_t *am = &avf_main;
uword pd = vlib_pci_get_private_data (vm, h);
avf_device_t *ad = pool_elt_at_index (am->devices, pd);
u32 icr0;
icr0 = avf_reg_read (ad, AVFINT_ICR0);
if (ad->flags & AVF_DEVICE_F_ELOG)
{
/* *INDENT-OFF* */
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] irq 0: icr0 0x%x",
.format_args = "i4i4",
};
/* *INDENT-ON* */
struct
{
u32 dev_instance;
u32 icr0;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->icr0 = icr0;
}
avf_irq_0_enable (ad);
/* bit 30 - Send/Receive Admin queue interrupt indication */
if (icr0 & (1 << 30))
vlib_process_signal_event (vm, avf_process_node.index,
AVF_PROCESS_EVENT_AQ_INT, 0);
}
static void
avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
{
vnet_main_t *vnm = vnet_get_main ();
avf_main_t *am = &avf_main;
uword pd = vlib_pci_get_private_data (vm, h);
avf_device_t *ad = pool_elt_at_index (am->devices, pd);
u16 qid;
int i;
if (ad->flags & AVF_DEVICE_F_ELOG)
{
/* *INDENT-OFF* */
ELOG_TYPE_DECLARE (el) =
{
.format = "avf[%d] irq %d: received",
.format_args = "i4i2",
};
/* *INDENT-ON* */
struct
{
u32 dev_instance;
u16 line;
} *ed;
ed = ELOG_DATA (&vm->elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->line = line;
}
qid = line - 1;
if (vec_len (ad->rxqs) > qid && ad->rxqs[qid].int_mode != 0)
vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, qid);
for (i = 0; i < vec_len (ad->rxqs); i++)
avf_irq_n_enable (ad, i);
}
void
avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
{
vnet_main_t *vnm = vnet_get_main ();
avf_main_t *am = &avf_main;
int i;
if (ad->hw_if_index)
{
vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
ethernet_delete_interface (vnm, ad->hw_if_index);
}
vlib_pci_device_close (vm, ad->pci_dev_handle);
vlib_physmem_free (vm, am->physmem_region, ad->atq);
vlib_physmem_free (vm, am->physmem_region, ad->arq);
vlib_physmem_free (vm, am->physmem_region, ad->atq_bufs);
vlib_physmem_free (vm, am->physmem_region, ad->arq_bufs);
/* *INDENT-OFF* */
vec_foreach_index (i, ad->rxqs)
{
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
vlib_physmem_free (vm, am->physmem_region, (void *) rxq->descs);
if (rxq->n_enqueued)
vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
rxq->n_enqueued);
vec_free (rxq->bufs);
}
/* *INDENT-ON* */
vec_free (ad->rxqs);
/* *INDENT-OFF* */
vec_foreach_index (i, ad->txqs)
{
avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
vlib_physmem_free (vm, am->physmem_region, (void *) txq->descs);
if (txq->n_enqueued)
{
u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
txq->n_enqueued);
}
vec_free (txq->bufs);
}
/* *INDENT-ON* */
vec_free (ad->txqs);
clib_error_free (ad->error);
memset (ad, 0, sizeof (*ad));
pool_put (am->devices, ad);
}
void
avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
{
vnet_main_t *vnm = vnet_get_main ();
avf_main_t *am = &avf_main;
avf_device_t *ad;
vlib_pci_dev_handle_t h;
clib_error_t *error = 0;
int i;
/* check input args */
args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
if ((args->rxq_size & (args->rxq_size - 1))
|| (args->txq_size & (args->txq_size - 1)))
{
args->rv = VNET_API_ERROR_INVALID_VALUE;
args->error =
clib_error_return (error, "queue size must be a power of two");
return;
}
pool_get (am->devices, ad);
ad->dev_instance = ad - am->devices;
ad->per_interface_next_index = ~0;
if (args->enable_elog)
ad->flags |= AVF_DEVICE_F_ELOG;
if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
&h)))
{
pool_put (am->devices, ad);
args->rv = VNET_API_ERROR_INVALID_INTERFACE;
args->error =
clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
&args->addr);
return;
}
ad->pci_dev_handle = h;
vlib_pci_set_private_data (vm, h, ad->dev_instance);
if ((error = vlib_pci_bus_master_enable (vm, h)))
goto error;
if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
goto error;
if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
&avf_irq_0_handler)))
goto error;
if ((error = vlib_pci_register_msix_handler (vm, h, 1, 1,
&avf_irq_n_handler)))
goto error;
if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
goto error;
if (am->physmem_region_alloc == 0)
{
u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
error = vlib_physmem_region_alloc (vm, "avf descriptors", 4 << 20, 0,
flags, &am->physmem_region);
if (error)
goto error;
am->physmem_region_alloc = 1;
}
ad->atq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
64);
if (error)
goto error;
ad->arq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
64);
if (error)
goto error;
ad->atq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
64);
if (error)
goto error;
ad->arq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
64);
if (error)
goto error;
if ((error = vlib_pci_intr_enable (vm, h)))
goto error;
/* FIXME detect */
ad->flags |= AVF_DEVICE_F_IOVA;
if ((error = avf_device_init (vm, am, ad, args)))
goto error;
/* create interface */
error = ethernet_register_interface (vnm, avf_device_class.index,
ad->dev_instance, ad->hwaddr,
&ad->hw_if_index, avf_flag_change);
if (error)
goto error;
vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
avf_input_node.index);
for (i = 0; i < ad->n_rx_queues; i++)
vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
if (pool_elts (am->devices) == 1)
vlib_process_signal_event (vm, avf_process_node.index,
AVF_PROCESS_EVENT_START, 0);
return;
error:
avf_delete_if (vm, ad);
args->rv = VNET_API_ERROR_INVALID_INTERFACE;
args->error = clib_error_return (error, "pci-addr %U",
format_vlib_pci_addr, &args->addr);
vlib_log_err (am->log_class, "%U", format_clib_error, args->error);
}
static clib_error_t *
avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
avf_main_t *am = &avf_main;
avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
if (ad->flags & AVF_DEVICE_F_ERROR)
return clib_error_return (0, "device is in error state");
if (is_up)
{
vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
ad->flags |= AVF_DEVICE_F_ADMIN_UP;
}
else
{
vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
}
return 0;
}
static clib_error_t *
avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
vnet_hw_interface_rx_mode mode)
{
avf_main_t *am = &avf_main;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
rxq->int_mode = 0;
else
rxq->int_mode = 1;
return 0;
}
static void
avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
u32 node_index)
{
avf_main_t *am = &avf_main;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
/* Shut off redirection */
if (node_index == ~0)
{
ad->per_interface_next_index = node_index;
return;
}
ad->per_interface_next_index =
vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
}
static char *avf_tx_func_error_strings[] = {
#define _(n,s) s,
foreach_avf_tx_func_error
#undef _
};
/* *INDENT-OFF* */
VNET_DEVICE_CLASS (avf_device_class,) =
{
.name = "Adaptive Virtual Function (AVF) interface",
.format_device = format_avf_device,
.format_device_name = format_avf_device_name,
.admin_up_down_function = avf_interface_admin_up_down,
.rx_mode_change_function = avf_interface_rx_mode_change,
.rx_redirect_to_node = avf_set_interface_next_node,
.tx_function_n_errors = AVF_TX_N_ERROR,
.tx_function_error_strings = avf_tx_func_error_strings,
};
/* *INDENT-ON* */
clib_error_t *
avf_init (vlib_main_t * vm)
{
avf_main_t *am = &avf_main;
clib_error_t *error;
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i;
if ((error = vlib_call_init_function (vm, pci_bus_init)))
return error;
vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
/* initialize ptype based loopup table */
vec_validate_aligned (am->ptypes, 255, CLIB_CACHE_LINE_BYTES);
/* *INDENT-OFF* */
vec_foreach_index (i, am->ptypes)
{
avf_ptype_t *p = vec_elt_at_index (am->ptypes, i);
if ((i >= 22) && (i <= 87))
{
p->next_node = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
p->flags = VNET_BUFFER_F_IS_IP4;
}
else if ((i >= 88) && (i <= 153))
{
p->next_node = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
p->flags = VNET_BUFFER_F_IS_IP6;
}
else
p->next_node = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
p->buffer_advance = device_input_next_node_advance[p->next_node];
p->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
}
/* *INDENT-ON* */
am->log_class = vlib_log_register_class ("avf_plugin", 0);
vlib_log_debug (am->log_class, "initialized");
return 0;
}
VLIB_INIT_FUNCTION (avf_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
