Gitiles
Code Review Sign In
gerrit.nordix.org / fdio / vpp / 86698fca30941772a3b77106fc2b2e83a40bcfeb / . / src / plugins / avf / device.c
blob: c405d2e31d14825e9524d43a5719f49d4f985319 [file] [log] [blame]
/*
*------------------------------------------------------------------
* 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 <vppinfra/ring.h>
#include <vlib/unix/unix.h>
#include <vlib/pci/pci.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/interface/rx_queue_funcs.h>
#include <vnet/interface/tx_queue_funcs.h>
#include <avf/avf.h>
#define AVF_MBOX_LEN 64
#define AVF_MBOX_BUF_SZ 4096
#define AVF_RXQ_SZ 512
#define AVF_TXQ_SZ 512
#define AVF_ITR_INT 250
#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
VLIB_REGISTER_LOG_CLASS (avf_log) = {
.class_name = "avf",
};
VLIB_REGISTER_LOG_CLASS (avf_stats_log) = {
.class_name = "avf",
.subclass_name = "stats",
};
avf_main_t avf_main;
void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
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},
};
const static char *virtchnl_event_names[] = {
#define _(v, n) [v] = #n,
foreach_virtchnl_event_code
#undef _
};
typedef enum
{
AVF_IRQ_STATE_DISABLED,
AVF_IRQ_STATE_ENABLED,
AVF_IRQ_STATE_WB_ON_ITR,
} avf_irq_state_t;
static inline void
avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
{
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);
if (state == AVF_IRQ_STATE_DISABLED)
return;
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 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
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_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
{
u32 dyn_ctln = 0;
/* disable */
avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
avf_reg_flush (ad);
if (state == AVF_IRQ_STATE_DISABLED)
return;
dyn_ctln |= (1 << 1); /* [1] Clear PBA */
if (state == AVF_IRQ_STATE_WB_ON_ITR)
{
/* minimal ITR interval, use ITR1 */
dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
}
else
{
/* configured ITR interval, use ITR0 */
dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
}
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)
{
clib_error_t *err = 0;
avf_aq_desc_t *d, dc;
f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
d = &ad->atq[ad->atq_next_slot];
clib_memcpy_fast (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_fast (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_fast (&dc, d, sizeof (avf_aq_desc_t));
CLIB_MEMORY_BARRIER ();
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);
t0 = vlib_time_now (vm);
retry:
vlib_process_suspend (vm, suspend_time);
if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
{
f64 t = vlib_time_now (vm) - t0;
if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
{
avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
d->opcode);
goto done;
}
suspend_time *= 2;
goto retry;
}
clib_memcpy_fast (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)
{
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 (&vlib_global_main.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;
}
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)
{
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 (&vlib_global_main.elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->reg = reg;
ed->val = val;
}
return err;
}
clib_error_t *
avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
{
clib_error_t *err;
avf_rxq_t *rxq;
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_on_numa (vm, rxq->size *
sizeof (avf_rx_desc_t),
2 * CLIB_CACHE_LINE_BYTES,
ad->numa_node);
rxq->buffer_pool_index =
vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
if (rxq->descs == 0)
return vlib_physmem_last_error (vm);
if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
return err;
clib_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_from_pool (vm, rxq->bufs, rxq->size - 8,
rxq->buffer_pool_index);
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_VA_DMA)
d->qword[0] = vlib_buffer_get_va (b);
else
d->qword[0] = vlib_buffer_get_pa (vm, b);
d++;
}
return 0;
}
clib_error_t *
avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
{
clib_error_t *err;
avf_txq_t *txq;
u16 n;
u8 bpi = vlib_buffer_pool_get_default_for_numa (vm,
ad->numa_node);
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;
clib_spinlock_init (&txq->lock);
/* Prepare a placeholder buffer(s) to maintain a 1-1 relationship between
* bufs and descs when a context descriptor is added in descs. Worst case
* every second descriptor is context descriptor and due to b->ref_count
* being u8 we need one for each block of 510 descriptors */
n = (txq->size / 510) + 1;
vec_validate_aligned (txq->ph_bufs, n, CLIB_CACHE_LINE_BYTES);
if (!vlib_buffer_alloc_from_pool (vm, txq->ph_bufs, n, bpi))
return clib_error_return (0, "buffer allocation error");
txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
sizeof (avf_tx_desc_t),
2 * CLIB_CACHE_LINE_BYTES,
ad->numa_node);
if (txq->descs == 0)
return vlib_physmem_last_error (vm);
if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
return err;
vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
/* initialize ring of pending RS slots */
clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (txq->tmp_descs, txq->size, CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (txq->tmp_bufs, txq->size, CLIB_CACHE_LINE_BYTES);
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];
clib_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)
{
return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
}
static void
avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
{
u64 pa;
int i;
/* VF MailBox Transmit */
clib_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 */
clib_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;
f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
/* adminq operations should be only done from process node after device
* is initialized */
ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
vlib_get_current_process_node_index (vm) == avf_process_node.index);
/* suppress 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;
t0 = vlib_time_now (vm);
retry:
head = avf_get_u32 (ad->bar0, AVF_ARQH);
if (ad->arq_next_slot == head)
{
f64 t = vlib_time_now (vm) - t0;
if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
{
avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
return clib_error_return (0, "timeout");
}
vlib_process_suspend (vm, suspend_time);
suspend_time *= 2;
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_fast (e, buf, sizeof (virtchnl_pf_event_t));
avf_arq_slot_init (ad, ad->arq_next_slot);
ad->arq_next_slot++;
/* reset timer */
t0 = vlib_time_now (vm);
suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
goto retry;
}
if (d->v_opcode != op)
{
err = clib_error_return (0,
"unexpected message received [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 (out_len && d->flags & AVF_AQ_F_BUF)
{
void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
clib_memcpy_fast (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)
{
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 (&vlib_global_main.elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->v_opcode = op;
ed->v_opcode_val = op;
ed->v_retval = d->v_retval;
}
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,
};
avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.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)
{
clib_error_t *err = 0;
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 |
VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_OFFLOAD_FDIR_PF |
VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF | VIRTCHNL_VF_OFFLOAD_VLAN_V2);
avf_log_debug (ad, "get_vf_resources: bitmap 0x%x (%U)", bitmap,
format_avf_vf_cap_flags, bitmap);
err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
if (err == 0)
{
int i;
avf_log_debug (ad,
"get_vf_resources: num_vsis %u num_queue_pairs %u "
"max_vectors %u max_mtu %u vf_cap_flags 0x%x (%U) "
"rss_key_size %u rss_lut_size %u",
res->num_vsis, res->num_queue_pairs, res->max_vectors,
res->max_mtu, res->vf_cap_flags, format_avf_vf_cap_flags,
res->vf_cap_flags, res->rss_key_size, res->rss_lut_size);
for (i = 0; i < res->num_vsis; i++)
avf_log_debug (
ad,
"get_vf_resources_vsi[%u]: vsi_id %u num_queue_pairs %u vsi_type %u "
"qset_handle %u default_mac_addr %U",
i, res->vsi_res[i].vsi_id, res->vsi_res[i].num_queue_pairs,
res->vsi_res[i].vsi_type, res->vsi_res[i].qset_handle,
format_ethernet_address, res->vsi_res[i].default_mac_addr);
}
return err;
}
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;
clib_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;
avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
rl->lut, rl->lut_entries);
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)
{
/* from DPDK i40e... */
static uint32_t rss_key_default[] = { 0x6b793944, 0x23504cb5, 0x5bea75b6,
0x309f4f12, 0x3dc0a2b8, 0x024ddcdf,
0x339b8ca0, 0x4c4af64a, 0x34fac605,
0x55d85839, 0x3a58997d, 0x2ec938e1,
0x66031581 };
int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
u8 msg[msg_len];
virtchnl_rss_key_t *rk;
if (sizeof (rss_key_default) != ad->rss_key_size)
return clib_error_create ("unsupported RSS key size (expected %d, got %d)",
sizeof (rss_key_default), ad->rss_key_size);
clib_memset (msg, 0, msg_len);
rk = (virtchnl_rss_key_t *) msg;
rk->vsi_id = ad->vsi_id;
rk->key_len = ad->rss_key_size;
memcpy_s (rk->key, rk->key_len, rss_key_default, sizeof (rss_key_default));
avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
rk->key_len);
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)
{
avf_log_debug (ad, "disable_vlan_stripping");
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
0);
}
clib_error_t *
avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
int is_enable)
{
virtchnl_promisc_info_t pi = { 0 };
pi.vsi_id = ad->vsi_id;
if (is_enable)
pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
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;
clib_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;
avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
ad->vsi_id, ci->num_queue_pairs);
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 = ETHERNET_MAX_PACKET_BYTES;
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_get_default_data_size (vm);
rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
}
avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
"ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
i, rxq->max_pkt_size, rxq->ring_len,
rxq->databuffer_size, rxq->dma_ring_addr);
txq->vsi_id = ad->vsi_id;
txq->queue_id = i;
if (i < vec_len (ad->txqs))
{
avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
txq->ring_len = q->size;
txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
}
avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
"dma_ring_addr 0x%llx", i, txq->ring_len,
txq->dma_ring_addr);
}
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 msg_len = sizeof (virtchnl_irq_map_info_t) +
(ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
u8 msg[msg_len];
virtchnl_irq_map_info_t *imi;
clib_memset (msg, 0, msg_len);
imi = (virtchnl_irq_map_info_t *) msg;
imi->num_vectors = ad->n_rx_irqs;
for (int i = 0; i < ad->n_rx_irqs; i++)
{
imi->vecmap[i].vector_id = i + 1;
imi->vecmap[i].vsi_id = ad->vsi_id;
if (ad->n_rx_irqs == ad->n_rx_queues)
imi->vecmap[i].rxq_map = 1 << i;
else
imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
"rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
}
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
0);
}
clib_error_t *
avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
u8 * macs, int is_add)
{
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;
clib_memset (msg, 0, msg_len);
al = (virtchnl_ether_addr_list_t *) msg;
al->vsi_id = ad->vsi_id;
al->num_elements = count;
avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
ad->vsi_id, al->num_elements, is_add);
for (i = 0; i < count; i++)
{
clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
format_ethernet_address, &al->list[i].addr);
}
return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
VIRTCHNL_OP_DEL_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 = 0;
qs.vsi_id = ad->vsi_id;
qs.rx_queues = rx;
qs.tx_queues = tx;
avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
ad->vsi_id, qs.rx_queues, qs.tx_queues);
while (rx)
{
if (rx & (1 << i))
{
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
rx &= ~(1 << i);
}
i++;
}
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 };
clib_error_t *err;
qs.vsi_id = ad->vsi_id;
err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS, &qs,
sizeof (virtchnl_queue_select_t), es,
sizeof (virtchnl_eth_stats_t));
avf_stats_log_debug (ad, "get_stats: vsi_id %u\n %U", ad->vsi_id,
format_avf_eth_stats, es);
return err;
}
clib_error_t *
avf_op_get_offload_vlan_v2_caps (vlib_main_t *vm, avf_device_t *ad,
virtchnl_vlan_caps_t *vc)
{
clib_error_t *err;
err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, 0, 0, vc,
sizeof (virtchnl_vlan_caps_t));
avf_log_debug (ad, "get_offload_vlan_v2_caps:\n%U%U", format_white_space, 16,
format_avf_vlan_caps, vc);
return err;
}
clib_error_t *
avf_op_disable_vlan_stripping_v2 (vlib_main_t *vm, avf_device_t *ad, u32 outer,
u32 inner)
{
virtchnl_vlan_setting_t vs = {
.outer_ethertype_setting = outer,
.inner_ethertype_setting = inner,
.vport_id = ad->vsi_id,
};
avf_log_debug (ad, "disable_vlan_stripping_v2: outer: %U, inner %U",
format_avf_vlan_support, outer, format_avf_vlan_support,
inner);
return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2, &vs,
sizeof (virtchnl_vlan_setting_t), 0, 0);
}
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;
f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
avf_log_debug (ad, "reset");
d.opcode = 0x801;
d.v_opcode = VIRTCHNL_OP_RESET_VF;
if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
return error;
t0 = vlib_time_now (vm);
retry:
vlib_process_suspend (vm, suspend_time);
rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
if (rstat == 2 || rstat == 3)
{
avf_log_debug (ad, "reset completed in %.3fs", t);
return 0;
}
t = vlib_time_now (vm) - t0;
if (t > AVF_RESET_MAX_WAIT_TIME)
{
avf_log_err (ad, "reset failed (timeout %.3fs)", t);
return clib_error_return (0, "reset failed (timeout)");
}
suspend_time *= 2;
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;
f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
res_req.num_queue_pairs = num_queue_pairs;
avf_log_debug (ad, "request_queues: num_queue_pairs %u", 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 responds, 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);
}
t0 = vlib_time_now (vm);
retry:
vlib_process_suspend (vm, suspend_time);
t = vlib_time_now (vm) - t0;
rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
goto done;
if (t > AVF_RESET_MAX_WAIT_TIME)
{
avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
return clib_error_return (0, "request queues failed (timeout)");
}
suspend_time *= 2;
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;
int i, wb_on_itr;
u16 rxq_num, txq_num;
avf_adminq_init (vm, ad);
rxq_num = args->rxq_num ? args->rxq_num : 1;
txq_num = args->txq_num ? args->txq_num : vlib_get_n_threads ();
if ((error = avf_request_queues (vm, ad, clib_max (txq_num, rxq_num))))
{
/* 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_RESOURCES
*/
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->cap_flags = res.vf_cap_flags;
ad->num_queue_pairs = res.num_queue_pairs;
ad->n_rx_queues = clib_min (rxq_num, res.num_queue_pairs);
ad->n_tx_queues = clib_min (txq_num, 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;
ad->n_rx_irqs = ad->max_vectors > ad->n_rx_queues ? ad->n_rx_queues : 1;
if (ad->max_vectors > ad->n_rx_queues)
ad->flags |= AVF_DEVICE_F_RX_INT;
wb_on_itr = (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
if (args->rxq_num != 0 && ad->n_rx_queues != args->rxq_num)
return clib_error_return (0,
"Number of requested RX queues (%u) is "
"higher than mumber of available queues (%u)",
args->rxq_num, ad->num_queue_pairs);
if (args->txq_num != 0 && ad->n_tx_queues != args->txq_num)
return clib_error_return (0,
"Number of requested TX queues (%u) is "
"higher than mumber of available queues (%u)",
args->txq_num, ad->num_queue_pairs);
/*
* Disable VLAN stripping
*/
if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2)
{
virtchnl_vlan_caps_t vc = {};
u32 outer = VIRTCHNL_VLAN_UNSUPPORTED, inner = VIRTCHNL_VLAN_UNSUPPORTED;
u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
if ((error = avf_op_get_offload_vlan_v2_caps (vm, ad, &vc)))
return error;
outer = vc.offloads.stripping_support.outer & mask;
inner = vc.offloads.stripping_support.inner & mask;
/* Check for ability to modify the VLAN setting */
outer =
vc.offloads.stripping_support.outer & VIRTCHNL_VLAN_TOGGLE ? outer : 0;
inner =
vc.offloads.stripping_support.inner & VIRTCHNL_VLAN_TOGGLE ? inner : 0;
if ((outer || inner) &&
(error = avf_op_disable_vlan_stripping_v2 (vm, ad, outer, inner)))
return error;
}
else if ((error = avf_op_disable_vlan_stripping (vm, ad)))
return error;
/*
* Init Queues
*/
for (i = 0; i < ad->n_rx_queues; i++)
if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
return error;
for (i = 0; i < ad->n_tx_queues; i++)
if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
return error;
if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
(error = avf_op_config_rss_lut (vm, ad)))
return error;
if ((ad->cap_flags & 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_set_state (ad, AVF_IRQ_STATE_ENABLED);
for (i = 0; i < ad->n_rx_irqs; i++)
avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
AVF_IRQ_STATE_ENABLED);
if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
return error;
if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
pow2_mask (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)
{
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);
avf_log_err (ad, "error: %U", format_clib_error, ad->error);
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);
avf_log_err (ad, "error: %U", format_clib_error, ad->error);
goto error;
}
if (is_irq == 0)
avf_op_get_stats (vm, ad, &ad->eth_stats);
/* *INDENT-OFF* */
vec_foreach (e, ad->events)
{
avf_log_debug (ad, "event: %s (%u) sev %d",
virtchnl_event_names[e->event], e->event, e->severity);
if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
{
int link_up;
virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
u32 flags = 0;
u32 mbps = 0;
if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
link_up = e->event_data.link_event_adv.link_status;
else
link_up = e->event_data.link_event.link_status;
if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
mbps = e->event_data.link_event_adv.link_speed;
if (speed == VIRTCHNL_LINK_SPEED_40GB)
mbps = 40000;
else if (speed == VIRTCHNL_LINK_SPEED_25GB)
mbps = 25000;
else if (speed == VIRTCHNL_LINK_SPEED_10GB)
mbps = 10000;
else if (speed == VIRTCHNL_LINK_SPEED_5GB)
mbps = 5000;
else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
mbps = 2500;
else if (speed == VIRTCHNL_LINK_SPEED_1GB)
mbps = 1000;
else if (speed == VIRTCHNL_LINK_SPEED_100MB)
mbps = 100;
avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
link_up, mbps);
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);
vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
vnet_hw_interface_set_link_speed (
vnm, ad->hw_if_index,
(mbps == UINT32_MAX) ? UINT32_MAX : mbps * 1000);
ad->link_speed = mbps;
}
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 mbps",
.format_args = "i4i1i4",
};
struct
{
u32 dev_instance;
u8 link_status;
u32 link_speed;
} *ed;
ed = ELOG_DATA (&vlib_global_main.elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->link_status = link_up;
ed->link_speed = mbps;
}
}
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 (&vlib_global_main.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 (avf_log.class, "%U", format_clib_error, ad->error);
}
clib_error_t *
avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
enum virthnl_adv_ops vc_op, u8 *rule, u32 rule_len,
u8 *program_status, u32 status_len)
{
virtchnl_ops_t op;
avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
is_create);
switch (vc_op)
{
case VIRTCHNL_ADV_OP_ADD_FDIR_FILTER:
case VIRTCHNL_ADV_OP_DEL_FDIR_FILTER:
op =
is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER : VIRTCHNL_OP_DEL_FDIR_FILTER;
break;
case VIRTCHNL_ADV_OP_ADD_RSS_CFG:
case VIRTCHNL_ADV_OP_DEL_RSS_CFG:
op = is_create ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
break;
default:
return clib_error_return (0, "invalid virtchnl opcode");
;
}
return avf_send_to_pf (vm, ad, op, rule, rule_len, program_status,
status_len);
}
static void
avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
{
avf_device_t *ad = avf_get_device (req->dev_instance);
if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
req->is_add);
else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
req->error = avf_op_program_flow (vm, ad, req->is_add, req->vc_op,
req->rule, req->rule_len,
req->program_status, req->status_len);
else
clib_panic ("BUG: unknown avf proceess request type");
if (req->calling_process_index != avf_process_node.index)
vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
}
static clib_error_t *
avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
{
uword *event_data = 0;
req->calling_process_index = vlib_get_current_process_node_index (vm);
if (req->calling_process_index != avf_process_node.index)
{
vlib_process_signal_event_pointer (vm, avf_process_node.index,
AVF_PROCESS_EVENT_REQ, req);
vlib_process_wait_for_event_or_clock (vm, 5.0);
if (vlib_process_get_events (vm, &event_data) != 0)
clib_panic ("avf process node failed to reply in 5 seconds");
vec_free (event_data);
}
else
avf_process_handle_request (vm, req);
return req->error;
}
static u32
avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
{
avf_process_req_t req;
vlib_main_t *vm = vlib_get_main ();
avf_device_t *ad = avf_get_device (hw->dev_instance);
clib_error_t *err;
switch (flags)
{
case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
ad->flags &= ~AVF_DEVICE_F_PROMISC;
break;
case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
ad->flags |= AVF_DEVICE_F_PROMISC;
break;
default:
return ~0;
}
req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
req.dev_instance = hw->dev_instance;
if ((err = avf_process_request (vm, &req)))
{
avf_log_err (ad, "error: %U", format_clib_error, err);
clib_error_free (err);
return ~0;
}
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;
uword *event_data = 0, event_type;
int enabled = 0, irq;
f64 last_run_duration = 0;
f64 last_periodic_time = 0;
avf_device_t **dev_pointers = 0;
u32 i;
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);
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_DELETE_IF:
for (int i = 0; i < vec_len (event_data); i++)
{
avf_device_t *ad = avf_get_device (event_data[i]);
avf_delete_if (vm, ad, /* with_barrier */ 1);
}
if (pool_elts (am->devices) < 1)
enabled = 0;
break;
case AVF_PROCESS_EVENT_AQ_INT:
irq = 1;
break;
case AVF_PROCESS_EVENT_REQ:
for (int i = 0; i < vec_len (event_data); i++)
avf_process_handle_request (vm, (void *) event_data[i]);
break;
default:
ASSERT (0);
}
vec_reset_length (event_data);
if (enabled == 0)
continue;
/* create local list of device pointers as device pool may grow
* during suspend */
vec_reset_length (dev_pointers);
/* *INDENT-OFF* */
pool_foreach_index (i, am->devices)
{
vec_add1 (dev_pointers, avf_get_device (i));
}
vec_foreach_index (i, dev_pointers)
{
avf_process_one_device (vm, dev_pointers[i], irq);
};
/* *INDENT-ON* */
last_run_duration = vlib_time_now (vm) - last_periodic_time;
}
return 0;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (avf_process_node) = {
.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)
{
uword pd = vlib_pci_get_private_data (vm, h);
avf_device_t *ad = avf_get_device (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 (&vlib_global_main.elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->icr0 = icr0;
}
avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
/* 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 ();
uword pd = vlib_pci_get_private_data (vm, h);
avf_device_t *ad = avf_get_device (pd);
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
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 (&vlib_global_main.elog_main, el);
ed->dev_instance = ad->dev_instance;
ed->line = line;
}
line--;
if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
}
void
avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
{
vnet_main_t *vnm = vnet_get_main ();
avf_main_t *am = &avf_main;
int i;
u32 dev_instance;
ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
if (ad->hw_if_index)
{
if (with_barrier)
vlib_worker_thread_barrier_sync (vm);
vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
ethernet_delete_interface (vnm, ad->hw_if_index);
if (with_barrier)
vlib_worker_thread_barrier_release (vm);
}
vlib_pci_device_close (vm, ad->pci_dev_handle);
vlib_physmem_free (vm, ad->atq);
vlib_physmem_free (vm, ad->arq);
vlib_physmem_free (vm, ad->atq_bufs);
vlib_physmem_free (vm, 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, (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, (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);
}
/* Free the placeholder buffer */
vlib_buffer_free (vm, txq->ph_bufs, vec_len (txq->ph_bufs));
vec_free (txq->ph_bufs);
vec_free (txq->bufs);
clib_ring_free (txq->rs_slots);
vec_free (txq->tmp_bufs);
vec_free (txq->tmp_descs);
clib_spinlock_free (&txq->lock);
}
/* *INDENT-ON* */
vec_free (ad->txqs);
vec_free (ad->name);
clib_error_free (ad->error);
dev_instance = ad->dev_instance;
clib_memset (ad, 0, sizeof (*ad));
pool_put_index (am->devices, dev_instance);
clib_mem_free (ad);
}
static u8
avf_validate_queue_size (avf_create_if_args_t * args)
{
clib_error_t *error = 0;
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 > AVF_QUEUE_SZ_MAX)
|| (args->txq_size > AVF_QUEUE_SZ_MAX))
{
args->rv = VNET_API_ERROR_INVALID_VALUE;
args->error =
clib_error_return (error, "queue size must not be greater than %u",
AVF_QUEUE_SZ_MAX);
return 1;
}
if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
|| (args->txq_size < AVF_QUEUE_SZ_MIN))
{
args->rv = VNET_API_ERROR_INVALID_VALUE;
args->error =
clib_error_return (error, "queue size must not be smaller than %u",
AVF_QUEUE_SZ_MIN);
return 1;
}
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 1;
}
return 0;
}
void
avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
{
vnet_main_t *vnm = vnet_get_main ();
vnet_eth_interface_registration_t eir = {};
avf_main_t *am = &avf_main;
avf_device_t *ad, **adp;
vlib_pci_dev_handle_t h;
clib_error_t *error = 0;
int i;
/* check input args */
if (avf_validate_queue_size (args) != 0)
return;
/* *INDENT-OFF* */
pool_foreach (adp, am->devices) {
if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
{
args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
args->error =
clib_error_return (error, "%U: %s", format_vlib_pci_addr,
&args->addr, "pci address in use");
return;
}
}
/* *INDENT-ON* */
pool_get (am->devices, adp);
adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
CLIB_CACHE_LINE_BYTES);
clib_memset (ad, 0, sizeof (avf_device_t));
ad->dev_instance = adp - am->devices;
ad->per_interface_next_index = ~0;
ad->name = vec_dup (args->name);
if (args->enable_elog)
{
ad->flags |= AVF_DEVICE_F_ELOG;
avf_elog_init ();
}
if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
&h)))
{
pool_put (am->devices, adp);
clib_mem_free (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;
ad->pci_addr = args->addr;
ad->numa_node = vlib_pci_get_numa_node (vm, 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;
ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
AVF_MBOX_LEN,
CLIB_CACHE_LINE_BYTES,
ad->numa_node);
if (ad->atq == 0)
{
error = vlib_physmem_last_error (vm);
goto error;
}
if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
goto error;
ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
AVF_MBOX_LEN,
CLIB_CACHE_LINE_BYTES,
ad->numa_node);
if (ad->arq == 0)
{
error = vlib_physmem_last_error (vm);
goto error;
}
if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
goto error;
ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
AVF_MBOX_LEN,
CLIB_CACHE_LINE_BYTES,
ad->numa_node);
if (ad->atq_bufs == 0)
{
error = vlib_physmem_last_error (vm);
goto error;
}
if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
goto error;
ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
AVF_MBOX_LEN,
CLIB_CACHE_LINE_BYTES,
ad->numa_node);
if (ad->arq_bufs == 0)
{
error = vlib_physmem_last_error (vm);
goto error;
}
if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
goto error;
if (vlib_pci_supports_virtual_addr_dma (vm, h))
ad->flags |= AVF_DEVICE_F_VA_DMA;
if ((error = avf_device_init (vm, am, ad, args)))
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, ad->n_rx_irqs,
&avf_irq_n_handler)))
goto error;
if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
goto error;
if ((error = vlib_pci_intr_enable (vm, h)))
goto error;
/* create interface */
eir.dev_class_index = avf_device_class.index;
eir.dev_instance = ad->dev_instance;
eir.address = ad->hwaddr;
eir.cb.flag_change = avf_flag_change;
ad->hw_if_index = vnet_eth_register_interface (vnm, &eir);
ethernet_set_flags (vnm, ad->hw_if_index,
ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
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_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
/* set hw interface caps */
vnet_hw_if_set_caps (vnm, ad->hw_if_index,
VNET_HW_IF_CAP_INT_MODE | VNET_HW_IF_CAP_MAC_FILTER |
VNET_HW_IF_CAP_TX_CKSUM | VNET_HW_IF_CAP_TCP_GSO);
for (i = 0; i < ad->n_rx_queues; i++)
{
u32 qi, fi;
qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
VNET_HW_IF_RXQ_THREAD_ANY);
if (ad->flags & AVF_DEVICE_F_RX_INT)
{
fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
}
ad->rxqs[i].queue_index = qi;
}
for (i = 0; i < ad->n_tx_queues; i++)
{
u32 qi = vnet_hw_if_register_tx_queue (vnm, ad->hw_if_index, i);
ad->txqs[i].queue_index = qi;
}
for (i = 0; i < vlib_get_n_threads (); i++)
{
u32 qi = ad->txqs[i % ad->n_tx_queues].queue_index;
vnet_hw_if_tx_queue_assign_thread (vnm, qi, i);
}
vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
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, /* with_barrier */ 0);
args->rv = VNET_API_ERROR_INVALID_INTERFACE;
args->error = clib_error_return (error, "pci-addr %U",
format_vlib_pci_addr, &args->addr);
avf_log_err (ad, "error: %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_device_t *ad = avf_get_device (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_if_rx_mode mode)
{
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
avf_device_t *ad = avf_get_device (hw->dev_instance);
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
if (mode == VNET_HW_IF_RX_MODE_POLLING)
{
if (rxq->int_mode == 0)
return 0;
if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
else
avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
rxq->int_mode = 0;
}
else
{
if (rxq->int_mode == 1)
return 0;
if (ad->n_rx_irqs != ad->n_rx_queues)
return clib_error_return (0, "not enough interrupt lines");
rxq->int_mode = 1;
avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
}
return 0;
}
static void
avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
u32 node_index)
{
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
avf_device_t *ad = avf_get_device (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 clib_error_t *
avf_add_del_mac_address (vnet_hw_interface_t * hw,
const u8 * address, u8 is_add)
{
vlib_main_t *vm = vlib_get_main ();
avf_process_req_t req;
req.dev_instance = hw->dev_instance;
req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
req.is_add = is_add;
clib_memcpy (req.eth_addr, address, 6);
return avf_process_request (vm, &req);
}
static char *avf_tx_func_error_strings[] = {
#define _(n,s) s,
foreach_avf_tx_func_error
#undef _
};
static void
avf_clear_hw_interface_counters (u32 instance)
{
avf_device_t *ad = avf_get_device (instance);
clib_memcpy_fast (&ad->last_cleared_eth_stats,
&ad->eth_stats, sizeof (ad->eth_stats));
}
clib_error_t *
avf_program_flow (u32 dev_instance, int is_add, enum virthnl_adv_ops vc_op,
u8 *rule, u32 rule_len, u8 *program_status, u32 status_len)
{
vlib_main_t *vm = vlib_get_main ();
avf_process_req_t req;
req.dev_instance = dev_instance;
req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
req.is_add = is_add;
req.vc_op = vc_op;
req.rule = rule;
req.rule_len = rule_len;
req.program_status = program_status;
req.status_len = status_len;
return avf_process_request (vm, &req);
}
/* *INDENT-OFF* */
VNET_DEVICE_CLASS (avf_device_class, ) = {
.name = "Adaptive Virtual Function (AVF) interface",
.clear_counters = avf_clear_hw_interface_counters,
.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,
.mac_addr_add_del_function = avf_add_del_mac_address,
.tx_function_n_errors = AVF_TX_N_ERROR,
.tx_function_error_strings = avf_tx_func_error_strings,
.flow_ops_function = avf_flow_ops_fn,
};
/* *INDENT-ON* */
clib_error_t *
avf_init (vlib_main_t * vm)
{
avf_main_t *am = &avf_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
return 0;
}
/* *INDENT-OFF* */
VLIB_INIT_FUNCTION (avf_init) =
{
.runs_after = VLIB_INITS ("pci_bus_init"),
};
/* *INDENT-OFF* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/