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cos / third_party / kernel / d73be6b341a42c313a617f487dbaeeea9aece079 / . / drivers / net / ethernet / intel / idpf / idpf_virtchnl.c
blob: 2c1b051fdc0d4868def4420ec099972740a5109a [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2023 Intel Corporation */
#include "idpf.h"
/**
* idpf_recv_event_msg - Receive virtchnl event message
* @vport: virtual port structure
* @ctlq_msg: message to copy from
*
* Receive virtchnl event message
*/
static void idpf_recv_event_msg(struct idpf_vport *vport,
struct idpf_ctlq_msg *ctlq_msg)
{
struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
struct virtchnl2_event *v2e;
bool link_status;
u32 event;
v2e = (struct virtchnl2_event *)ctlq_msg->ctx.indirect.payload->va;
event = le32_to_cpu(v2e->event);
switch (event) {
case VIRTCHNL2_EVENT_LINK_CHANGE:
vport->link_speed_mbps = le32_to_cpu(v2e->link_speed);
link_status = v2e->link_status;
if (vport->link_up == link_status)
break;
vport->link_up = link_status;
if (np->state == __IDPF_VPORT_UP) {
if (vport->link_up) {
netif_carrier_on(vport->netdev);
netif_tx_start_all_queues(vport->netdev);
} else {
netif_tx_stop_all_queues(vport->netdev);
netif_carrier_off(vport->netdev);
}
}
break;
default:
dev_err(&vport->adapter->pdev->dev,
"Unknown event %d from PF\n", event);
break;
}
}
/**
* idpf_mb_clean - Reclaim the send mailbox queue entries
* @adapter: Driver specific private structure
*
* Reclaim the send mailbox queue entries to be used to send further messages
*
* Returns 0 on success, negative on failure
*/
static int idpf_mb_clean(struct idpf_adapter *adapter)
{
u16 i, num_q_msg = IDPF_DFLT_MBX_Q_LEN;
struct idpf_ctlq_msg **q_msg;
struct idpf_dma_mem *dma_mem;
int err;
q_msg = kcalloc(num_q_msg, sizeof(struct idpf_ctlq_msg *), GFP_ATOMIC);
if (!q_msg)
return -ENOMEM;
err = idpf_ctlq_clean_sq(adapter->hw.asq, &num_q_msg, q_msg);
if (err)
goto err_kfree;
for (i = 0; i < num_q_msg; i++) {
if (!q_msg[i])
continue;
dma_mem = q_msg[i]->ctx.indirect.payload;
if (dma_mem)
dma_free_coherent(&adapter->pdev->dev, dma_mem->size,
dma_mem->va, dma_mem->pa);
kfree(q_msg[i]);
kfree(dma_mem);
}
err_kfree:
kfree(q_msg);
return err;
}
/**
* idpf_send_mb_msg - Send message over mailbox
* @adapter: Driver specific private structure
* @op: virtchnl opcode
* @msg_size: size of the payload
* @msg: pointer to buffer holding the payload
*
* Will prepare the control queue message and initiates the send api
*
* Returns 0 on success, negative on failure
*/
int idpf_send_mb_msg(struct idpf_adapter *adapter, u32 op,
u16 msg_size, u8 *msg)
{
struct idpf_ctlq_msg *ctlq_msg;
struct idpf_dma_mem *dma_mem;
int err;
/* If we are here and a reset is detected nothing much can be
* done. This thread should silently abort and expected to
* be corrected with a new run either by user or driver
* flows after reset
*/
if (idpf_is_reset_detected(adapter))
return 0;
err = idpf_mb_clean(adapter);
if (err)
return err;
ctlq_msg = kzalloc(sizeof(*ctlq_msg), GFP_ATOMIC);
if (!ctlq_msg)
return -ENOMEM;
dma_mem = kzalloc(sizeof(*dma_mem), GFP_ATOMIC);
if (!dma_mem) {
err = -ENOMEM;
goto dma_mem_error;
}
ctlq_msg->opcode = idpf_mbq_opc_send_msg_to_cp;
ctlq_msg->func_id = 0;
ctlq_msg->data_len = msg_size;
ctlq_msg->cookie.mbx.chnl_opcode = op;
ctlq_msg->cookie.mbx.chnl_retval = 0;
dma_mem->size = IDPF_CTLQ_MAX_BUF_LEN;
dma_mem->va = dma_alloc_coherent(&adapter->pdev->dev, dma_mem->size,
&dma_mem->pa, GFP_ATOMIC);
if (!dma_mem->va) {
err = -ENOMEM;
goto dma_alloc_error;
}
memcpy(dma_mem->va, msg, msg_size);
ctlq_msg->ctx.indirect.payload = dma_mem;
err = idpf_ctlq_send(&adapter->hw, adapter->hw.asq, 1, ctlq_msg);
if (err)
goto send_error;
return 0;
send_error:
dma_free_coherent(&adapter->pdev->dev, dma_mem->size, dma_mem->va,
dma_mem->pa);
dma_alloc_error:
kfree(dma_mem);
dma_mem_error:
kfree(ctlq_msg);
return err;
}
/**
* idpf_find_vport - Find vport pointer from control queue message
* @adapter: driver specific private structure
* @vport: address of vport pointer to copy the vport from adapters vport list
* @ctlq_msg: control queue message
*
* Return 0 on success, error value on failure. Also this function does check
* for the opcodes which expect to receive payload and return error value if
* it is not the case.
*/
static int idpf_find_vport(struct idpf_adapter *adapter,
struct idpf_vport **vport,
struct idpf_ctlq_msg *ctlq_msg)
{
bool no_op = false, vid_found = false;
int i, err = 0;
char *vc_msg;
u32 v_id;
vc_msg = kcalloc(IDPF_CTLQ_MAX_BUF_LEN, sizeof(char), GFP_KERNEL);
if (!vc_msg)
return -ENOMEM;
if (ctlq_msg->data_len) {
size_t payload_size = ctlq_msg->ctx.indirect.payload->size;
if (!payload_size) {
dev_err(&adapter->pdev->dev, "Failed to receive payload buffer\n");
kfree(vc_msg);
return -EINVAL;
}
memcpy(vc_msg, ctlq_msg->ctx.indirect.payload->va,
min_t(size_t, payload_size, IDPF_CTLQ_MAX_BUF_LEN));
}
switch (ctlq_msg->cookie.mbx.chnl_opcode) {
case VIRTCHNL2_OP_VERSION:
case VIRTCHNL2_OP_GET_CAPS:
case VIRTCHNL2_OP_CREATE_VPORT:
case VIRTCHNL2_OP_SET_SRIOV_VFS:
case VIRTCHNL2_OP_ALLOC_VECTORS:
case VIRTCHNL2_OP_DEALLOC_VECTORS:
case VIRTCHNL2_OP_GET_PTYPE_INFO:
goto free_vc_msg;
case VIRTCHNL2_OP_ENABLE_VPORT:
case VIRTCHNL2_OP_DISABLE_VPORT:
case VIRTCHNL2_OP_DESTROY_VPORT:
v_id = le32_to_cpu(((struct virtchnl2_vport *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_CONFIG_TX_QUEUES:
v_id = le32_to_cpu(((struct virtchnl2_config_tx_queues *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_CONFIG_RX_QUEUES:
v_id = le32_to_cpu(((struct virtchnl2_config_rx_queues *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_ENABLE_QUEUES:
case VIRTCHNL2_OP_DISABLE_QUEUES:
case VIRTCHNL2_OP_DEL_QUEUES:
v_id = le32_to_cpu(((struct virtchnl2_del_ena_dis_queues *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_ADD_QUEUES:
v_id = le32_to_cpu(((struct virtchnl2_add_queues *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_MAP_QUEUE_VECTOR:
case VIRTCHNL2_OP_UNMAP_QUEUE_VECTOR:
v_id = le32_to_cpu(((struct virtchnl2_queue_vector_maps *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_GET_STATS:
v_id = le32_to_cpu(((struct virtchnl2_vport_stats *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_GET_RSS_LUT:
case VIRTCHNL2_OP_SET_RSS_LUT:
v_id = le32_to_cpu(((struct virtchnl2_rss_lut *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_GET_RSS_KEY:
case VIRTCHNL2_OP_SET_RSS_KEY:
v_id = le32_to_cpu(((struct virtchnl2_rss_key *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_EVENT:
v_id = le32_to_cpu(((struct virtchnl2_event *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_LOOPBACK:
v_id = le32_to_cpu(((struct virtchnl2_loopback *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_CONFIG_PROMISCUOUS_MODE:
v_id = le32_to_cpu(((struct virtchnl2_promisc_info *)vc_msg)->vport_id);
break;
case VIRTCHNL2_OP_ADD_MAC_ADDR:
case VIRTCHNL2_OP_DEL_MAC_ADDR:
v_id = le32_to_cpu(((struct virtchnl2_mac_addr_list *)vc_msg)->vport_id);
break;
default:
no_op = true;
break;
}
if (no_op)
goto free_vc_msg;
for (i = 0; i < idpf_get_max_vports(adapter); i++) {
if (adapter->vport_ids[i] == v_id) {
vid_found = true;
break;
}
}
if (vid_found)
*vport = adapter->vports[i];
else
err = -EINVAL;
free_vc_msg:
kfree(vc_msg);
return err;
}
/**
* idpf_copy_data_to_vc_buf - Copy the virtchnl response data into the buffer.
* @adapter: driver specific private structure
* @vport: virtual port structure
* @ctlq_msg: msg to copy from
* @err_enum: err bit to set on error
*
* Copies the payload from ctlq_msg into virtchnl buffer. Returns 0 on success,
* negative on failure.
*/
static int idpf_copy_data_to_vc_buf(struct idpf_adapter *adapter,
struct idpf_vport *vport,
struct idpf_ctlq_msg *ctlq_msg,
enum idpf_vport_vc_state err_enum)
{
if (ctlq_msg->cookie.mbx.chnl_retval) {
if (vport)
set_bit(err_enum, vport->vc_state);
else
set_bit(err_enum, adapter->vc_state);
return -EINVAL;
}
if (vport)
memcpy(vport->vc_msg, ctlq_msg->ctx.indirect.payload->va,
min_t(int, ctlq_msg->ctx.indirect.payload->size,
IDPF_CTLQ_MAX_BUF_LEN));
else
memcpy(adapter->vc_msg, ctlq_msg->ctx.indirect.payload->va,
min_t(int, ctlq_msg->ctx.indirect.payload->size,
IDPF_CTLQ_MAX_BUF_LEN));
return 0;
}
/**
* idpf_recv_vchnl_op - helper function with common logic when handling the
* reception of VIRTCHNL OPs.
* @adapter: driver specific private structure
* @vport: virtual port structure
* @ctlq_msg: msg to copy from
* @state: state bit used on timeout check
* @err_state: err bit to set on error
*/
static void idpf_recv_vchnl_op(struct idpf_adapter *adapter,
struct idpf_vport *vport,
struct idpf_ctlq_msg *ctlq_msg,
enum idpf_vport_vc_state state,
enum idpf_vport_vc_state err_state)
{
wait_queue_head_t *vchnl_wq;
int err;
if (vport)
vchnl_wq = &vport->vchnl_wq;
else
vchnl_wq = &adapter->vchnl_wq;
err = idpf_copy_data_to_vc_buf(adapter, vport, ctlq_msg, err_state);
if (wq_has_sleeper(vchnl_wq)) {
if (vport)
set_bit(state, vport->vc_state);
else
set_bit(state, adapter->vc_state);
wake_up(vchnl_wq);
} else {
if (!err) {
dev_warn(&adapter->pdev->dev, "opcode %d received without waiting thread\n",
ctlq_msg->cookie.mbx.chnl_opcode);
} else {
/* Clear the errors since there is no sleeper to pass
* them on
*/
if (vport)
clear_bit(err_state, vport->vc_state);
else
clear_bit(err_state, adapter->vc_state);
}
}
}
/**
* idpf_recv_mb_msg - Receive message over mailbox
* @adapter: Driver specific private structure
* @op: virtchannel operation code
* @msg: Received message holding buffer
* @msg_size: message size
*
* Will receive control queue message and posts the receive buffer. Returns 0
* on success and negative on failure.
*/
int idpf_recv_mb_msg(struct idpf_adapter *adapter, u32 op,
void *msg, int msg_size)
{
struct idpf_vport *vport = NULL;
struct idpf_ctlq_msg ctlq_msg;
struct idpf_dma_mem *dma_mem;
bool work_done = false;
int num_retry = 2000;
u16 num_q_msg;
int err;
while (1) {
struct idpf_vport_config *vport_config;
int payload_size = 0;
/* Try to get one message */
num_q_msg = 1;
dma_mem = NULL;
err = idpf_ctlq_recv(adapter->hw.arq, &num_q_msg, &ctlq_msg);
/* If no message then decide if we have to retry based on
* opcode
*/
if (err || !num_q_msg) {
/* Increasing num_retry to consider the delayed
* responses because of large number of VF's mailbox
* messages. If the mailbox message is received from
* the other side, we come out of the sleep cycle
* immediately else we wait for more time.
*/
if (!op || !num_retry--)
break;
if (test_bit(IDPF_REMOVE_IN_PROG, adapter->flags)) {
err = -EIO;
break;
}
msleep(20);
continue;
}
/* If we are here a message is received. Check if we are looking
* for a specific message based on opcode. If it is different
* ignore and post buffers
*/
if (op && ctlq_msg.cookie.mbx.chnl_opcode != op)
goto post_buffs;
err = idpf_find_vport(adapter, &vport, &ctlq_msg);
if (err)
goto post_buffs;
if (ctlq_msg.data_len)
payload_size = ctlq_msg.ctx.indirect.payload->size;
/* All conditions are met. Either a message requested is
* received or we received a message to be processed
*/
switch (ctlq_msg.cookie.mbx.chnl_opcode) {
case VIRTCHNL2_OP_VERSION:
case VIRTCHNL2_OP_GET_CAPS:
if (ctlq_msg.cookie.mbx.chnl_retval) {
dev_err(&adapter->pdev->dev, "Failure initializing, vc op: %u retval: %u\n",
ctlq_msg.cookie.mbx.chnl_opcode,
ctlq_msg.cookie.mbx.chnl_retval);
err = -EBADMSG;
} else if (msg) {
memcpy(msg, ctlq_msg.ctx.indirect.payload->va,
min_t(int, payload_size, msg_size));
}
work_done = true;
break;
case VIRTCHNL2_OP_CREATE_VPORT:
idpf_recv_vchnl_op(adapter, NULL, &ctlq_msg,
IDPF_VC_CREATE_VPORT,
IDPF_VC_CREATE_VPORT_ERR);
break;
case VIRTCHNL2_OP_ENABLE_VPORT:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_ENA_VPORT,
IDPF_VC_ENA_VPORT_ERR);
break;
case VIRTCHNL2_OP_DISABLE_VPORT:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_DIS_VPORT,
IDPF_VC_DIS_VPORT_ERR);
break;
case VIRTCHNL2_OP_DESTROY_VPORT:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_DESTROY_VPORT,
IDPF_VC_DESTROY_VPORT_ERR);
break;
case VIRTCHNL2_OP_CONFIG_TX_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_CONFIG_TXQ,
IDPF_VC_CONFIG_TXQ_ERR);
break;
case VIRTCHNL2_OP_CONFIG_RX_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_CONFIG_RXQ,
IDPF_VC_CONFIG_RXQ_ERR);
break;
case VIRTCHNL2_OP_ENABLE_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_ENA_QUEUES,
IDPF_VC_ENA_QUEUES_ERR);
break;
case VIRTCHNL2_OP_DISABLE_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_DIS_QUEUES,
IDPF_VC_DIS_QUEUES_ERR);
break;
case VIRTCHNL2_OP_ADD_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_ADD_QUEUES,
IDPF_VC_ADD_QUEUES_ERR);
break;
case VIRTCHNL2_OP_DEL_QUEUES:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_DEL_QUEUES,
IDPF_VC_DEL_QUEUES_ERR);
break;
case VIRTCHNL2_OP_MAP_QUEUE_VECTOR:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_MAP_IRQ,
IDPF_VC_MAP_IRQ_ERR);
break;
case VIRTCHNL2_OP_UNMAP_QUEUE_VECTOR:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_UNMAP_IRQ,
IDPF_VC_UNMAP_IRQ_ERR);
break;
case VIRTCHNL2_OP_GET_STATS:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_GET_STATS,
IDPF_VC_GET_STATS_ERR);
break;
case VIRTCHNL2_OP_GET_RSS_LUT:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_GET_RSS_LUT,
IDPF_VC_GET_RSS_LUT_ERR);
break;
case VIRTCHNL2_OP_SET_RSS_LUT:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_SET_RSS_LUT,
IDPF_VC_SET_RSS_LUT_ERR);
break;
case VIRTCHNL2_OP_GET_RSS_KEY:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_GET_RSS_KEY,
IDPF_VC_GET_RSS_KEY_ERR);
break;
case VIRTCHNL2_OP_SET_RSS_KEY:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_SET_RSS_KEY,
IDPF_VC_SET_RSS_KEY_ERR);
break;
case VIRTCHNL2_OP_SET_SRIOV_VFS:
idpf_recv_vchnl_op(adapter, NULL, &ctlq_msg,
IDPF_VC_SET_SRIOV_VFS,
IDPF_VC_SET_SRIOV_VFS_ERR);
break;
case VIRTCHNL2_OP_ALLOC_VECTORS:
idpf_recv_vchnl_op(adapter, NULL, &ctlq_msg,
IDPF_VC_ALLOC_VECTORS,
IDPF_VC_ALLOC_VECTORS_ERR);
break;
case VIRTCHNL2_OP_DEALLOC_VECTORS:
idpf_recv_vchnl_op(adapter, NULL, &ctlq_msg,
IDPF_VC_DEALLOC_VECTORS,
IDPF_VC_DEALLOC_VECTORS_ERR);
break;
case VIRTCHNL2_OP_GET_PTYPE_INFO:
idpf_recv_vchnl_op(adapter, NULL, &ctlq_msg,
IDPF_VC_GET_PTYPE_INFO,
IDPF_VC_GET_PTYPE_INFO_ERR);
break;
case VIRTCHNL2_OP_LOOPBACK:
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_LOOPBACK_STATE,
IDPF_VC_LOOPBACK_STATE_ERR);
break;
case VIRTCHNL2_OP_CONFIG_PROMISCUOUS_MODE:
/* This message can only be sent asynchronously. As
* such we'll have lost the context in which it was
* called and thus can only really report if it looks
* like an error occurred. Don't bother setting ERR bit
* or waking chnl_wq since no work queue will be waiting
* to read the message.
*/
if (ctlq_msg.cookie.mbx.chnl_retval) {
dev_err(&adapter->pdev->dev, "Failed to set promiscuous mode: %d\n",
ctlq_msg.cookie.mbx.chnl_retval);
}
break;
case VIRTCHNL2_OP_ADD_MAC_ADDR:
vport_config = adapter->vport_config[vport->idx];
if (test_and_clear_bit(IDPF_VPORT_ADD_MAC_REQ,
vport_config->flags)) {
/* Message was sent asynchronously. We don't
* normally print errors here, instead
* prefer to handle errors in the function
* calling wait_for_event. However, if
* asynchronous, the context in which the
* message was sent is lost. We can't really do
* anything about at it this point, but we
* should at a minimum indicate that it looks
* like something went wrong. Also don't bother
* setting ERR bit or waking vchnl_wq since no
* one will be waiting to read the async
* message.
*/
if (ctlq_msg.cookie.mbx.chnl_retval)
dev_err(&adapter->pdev->dev, "Failed to add MAC address: %d\n",
ctlq_msg.cookie.mbx.chnl_retval);
break;
}
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_ADD_MAC_ADDR,
IDPF_VC_ADD_MAC_ADDR_ERR);
break;
case VIRTCHNL2_OP_DEL_MAC_ADDR:
vport_config = adapter->vport_config[vport->idx];
if (test_and_clear_bit(IDPF_VPORT_DEL_MAC_REQ,
vport_config->flags)) {
/* Message was sent asynchronously like the
* VIRTCHNL2_OP_ADD_MAC_ADDR
*/
if (ctlq_msg.cookie.mbx.chnl_retval)
dev_err(&adapter->pdev->dev, "Failed to delete MAC address: %d\n",
ctlq_msg.cookie.mbx.chnl_retval);
break;
}
idpf_recv_vchnl_op(adapter, vport, &ctlq_msg,
IDPF_VC_DEL_MAC_ADDR,
IDPF_VC_DEL_MAC_ADDR_ERR);
break;
case VIRTCHNL2_OP_EVENT:
idpf_recv_event_msg(vport, &ctlq_msg);
break;
default:
dev_warn(&adapter->pdev->dev,
"Unhandled virtchnl response %d\n",
ctlq_msg.cookie.mbx.chnl_opcode);
break;
}
post_buffs:
if (ctlq_msg.data_len)
dma_mem = ctlq_msg.ctx.indirect.payload;
else
num_q_msg = 0;
err = idpf_ctlq_post_rx_buffs(&adapter->hw, adapter->hw.arq,
&num_q_msg, &dma_mem);
/* If post failed clear the only buffer we supplied */
if (err && dma_mem)
dma_free_coherent(&adapter->pdev->dev, dma_mem->size,
dma_mem->va, dma_mem->pa);
/* Applies only if we are looking for a specific opcode */
if (work_done)
break;
}
return err;
}
/**
* __idpf_wait_for_event - wrapper function for wait on virtchannel response
* @adapter: Driver private data structure
* @vport: virtual port structure
* @state: check on state upon timeout
* @err_check: check if this specific error bit is set
* @timeout: Max time to wait
*
* Checks if state is set upon expiry of timeout. Returns 0 on success,
* negative on failure.
*/
static int __idpf_wait_for_event(struct idpf_adapter *adapter,
struct idpf_vport *vport,
enum idpf_vport_vc_state state,
enum idpf_vport_vc_state err_check,
int timeout)
{
int time_to_wait, num_waits;
wait_queue_head_t *vchnl_wq;
unsigned long *vc_state;
time_to_wait = ((timeout <= IDPF_MAX_WAIT) ? timeout : IDPF_MAX_WAIT);
num_waits = ((timeout <= IDPF_MAX_WAIT) ? 1 : timeout / IDPF_MAX_WAIT);
if (vport) {
vchnl_wq = &vport->vchnl_wq;
vc_state = vport->vc_state;
} else {
vchnl_wq = &adapter->vchnl_wq;
vc_state = adapter->vc_state;
}
while (num_waits) {
int event;
/* If we are here and a reset is detected do not wait but
* return. Reset timing is out of drivers control. So
* while we are cleaning resources as part of reset if the
* underlying HW mailbox is gone, wait on mailbox messages
* is not meaningful
*/
if (idpf_is_reset_detected(adapter))
return 0;
event = wait_event_timeout(*vchnl_wq,
test_and_clear_bit(state, vc_state),
msecs_to_jiffies(time_to_wait));
if (event) {
if (test_and_clear_bit(err_check, vc_state)) {
dev_err(&adapter->pdev->dev, "VC response error %s\n",
idpf_vport_vc_state_str[err_check]);
return -EINVAL;
}
return 0;
}
num_waits--;
}
/* Timeout occurred */
dev_err(&adapter->pdev->dev, "VC timeout, state = %s\n",
idpf_vport_vc_state_str[state]);
return -ETIMEDOUT;
}
/**
* idpf_min_wait_for_event - wait for virtchannel response
* @adapter: Driver private data structure
* @vport: virtual port structure
* @state: check on state upon timeout
* @err_check: check if this specific error bit is set
*
* Returns 0 on success, negative on failure.
*/
static int idpf_min_wait_for_event(struct idpf_adapter *adapter,
struct idpf_vport *vport,
enum idpf_vport_vc_state state,
enum idpf_vport_vc_state err_check)
{
return __idpf_wait_for_event(adapter, vport, state, err_check,
IDPF_WAIT_FOR_EVENT_TIMEO_MIN);
}
/**
* idpf_wait_for_event - wait for virtchannel response
* @adapter: Driver private data structure
* @vport: virtual port structure
* @state: check on state upon timeout after 500ms
* @err_check: check if this specific error bit is set
*
* Returns 0 on success, negative on failure.
*/
static int idpf_wait_for_event(struct idpf_adapter *adapter,
struct idpf_vport *vport,
enum idpf_vport_vc_state state,
enum idpf_vport_vc_state err_check)
{
/* Increasing the timeout in __IDPF_INIT_SW flow to consider large
* number of VF's mailbox message responses. When a message is received
* on mailbox, this thread is woken up by the idpf_recv_mb_msg before
* the timeout expires. Only in the error case i.e. if no message is
* received on mailbox, we wait for the complete timeout which is
* less likely to happen.
*/
return __idpf_wait_for_event(adapter, vport, state, err_check,
IDPF_WAIT_FOR_EVENT_TIMEO);
}
/**
* idpf_wait_for_marker_event - wait for software marker response
* @vport: virtual port data structure
*
* Returns 0 success, negative on failure.
**/
static int idpf_wait_for_marker_event(struct idpf_vport *vport)
{
int event;
int i;
for (i = 0; i < vport->num_txq; i++)
set_bit(__IDPF_Q_SW_MARKER, vport->txqs[i]->flags);
event = wait_event_timeout(vport->sw_marker_wq,
test_and_clear_bit(IDPF_VPORT_SW_MARKER,
vport->flags),
msecs_to_jiffies(500));
for (i = 0; i < vport->num_txq; i++)
clear_bit(__IDPF_Q_POLL_MODE, vport->txqs[i]->flags);
if (event)
return 0;
dev_warn(&vport->adapter->pdev->dev, "Failed to receive marker packets\n");
return -ETIMEDOUT;
}
/**
* idpf_send_ver_msg - send virtchnl version message
* @adapter: Driver specific private structure
*
* Send virtchnl version message. Returns 0 on success, negative on failure.
*/
static int idpf_send_ver_msg(struct idpf_adapter *adapter)
{
struct virtchnl2_version_info vvi;
if (adapter->virt_ver_maj) {
vvi.major = cpu_to_le32(adapter->virt_ver_maj);
vvi.minor = cpu_to_le32(adapter->virt_ver_min);
} else {
vvi.major = cpu_to_le32(IDPF_VIRTCHNL_VERSION_MAJOR);
vvi.minor = cpu_to_le32(IDPF_VIRTCHNL_VERSION_MINOR);
}
return idpf_send_mb_msg(adapter, VIRTCHNL2_OP_VERSION, sizeof(vvi),
(u8 *)&vvi);
}
/**
* idpf_recv_ver_msg - Receive virtchnl version message
* @adapter: Driver specific private structure
*
* Receive virtchnl version message. Returns 0 on success, -EAGAIN if we need
* to send version message again, otherwise negative on failure.
*/
static int idpf_recv_ver_msg(struct idpf_adapter *adapter)
{
struct virtchnl2_version_info vvi;
u32 major, minor;
int err;
err = idpf_recv_mb_msg(adapter, VIRTCHNL2_OP_VERSION, &vvi,
sizeof(vvi));
if (err)
return err;
major = le32_to_cpu(vvi.major);
minor = le32_to_cpu(vvi.minor);
if (major > IDPF_VIRTCHNL_VERSION_MAJOR) {
dev_warn(&adapter->pdev->dev,
"Virtchnl major version (%d) greater than supported\n",
major);
return -EINVAL;
}
if (major == IDPF_VIRTCHNL_VERSION_MAJOR &&
minor > IDPF_VIRTCHNL_VERSION_MINOR)
dev_warn(&adapter->pdev->dev,
"Virtchnl minor version (%d) didn't match\n", minor);
/* If we have a mismatch, resend version to update receiver on what
* version we will use.
*/
if (!adapter->virt_ver_maj &&
major != IDPF_VIRTCHNL_VERSION_MAJOR &&
minor != IDPF_VIRTCHNL_VERSION_MINOR)
err = -EAGAIN;
adapter->virt_ver_maj = major;
adapter->virt_ver_min = minor;
return err;
}
/**
* idpf_send_get_caps_msg - Send virtchnl get capabilities message
* @adapter: Driver specific private structure
*
* Send virtchl get capabilities message. Returns 0 on success, negative on
* failure.
*/
static int idpf_send_get_caps_msg(struct idpf_adapter *adapter)
{
struct virtchnl2_get_capabilities caps = { };
caps.csum_caps =
cpu_to_le32(VIRTCHNL2_CAP_TX_CSUM_L3_IPV4 |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_TCP |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_UDP |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_SCTP |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_TCP |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_UDP |
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_SCTP |
VIRTCHNL2_CAP_RX_CSUM_L3_IPV4 |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_TCP |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_UDP |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_SCTP |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_TCP |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_UDP |
VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_SCTP |
VIRTCHNL2_CAP_TX_CSUM_L3_SINGLE_TUNNEL |
VIRTCHNL2_CAP_RX_CSUM_L3_SINGLE_TUNNEL |
VIRTCHNL2_CAP_TX_CSUM_L4_SINGLE_TUNNEL |
VIRTCHNL2_CAP_RX_CSUM_L4_SINGLE_TUNNEL |
VIRTCHNL2_CAP_RX_CSUM_GENERIC);
caps.seg_caps =
cpu_to_le32(VIRTCHNL2_CAP_SEG_IPV4_TCP |
VIRTCHNL2_CAP_SEG_IPV4_UDP |
VIRTCHNL2_CAP_SEG_IPV4_SCTP |
VIRTCHNL2_CAP_SEG_IPV6_TCP |
VIRTCHNL2_CAP_SEG_IPV6_UDP |
VIRTCHNL2_CAP_SEG_IPV6_SCTP |
VIRTCHNL2_CAP_SEG_TX_SINGLE_TUNNEL);
caps.rss_caps =
cpu_to_le64(VIRTCHNL2_CAP_RSS_IPV4_TCP |
VIRTCHNL2_CAP_RSS_IPV4_UDP |
VIRTCHNL2_CAP_RSS_IPV4_SCTP |
VIRTCHNL2_CAP_RSS_IPV4_OTHER |
VIRTCHNL2_CAP_RSS_IPV6_TCP |
VIRTCHNL2_CAP_RSS_IPV6_UDP |
VIRTCHNL2_CAP_RSS_IPV6_SCTP |
VIRTCHNL2_CAP_RSS_IPV6_OTHER);
caps.hsplit_caps =
cpu_to_le32(VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V4 |
VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V6);
caps.rsc_caps =
cpu_to_le32(VIRTCHNL2_CAP_RSC_IPV4_TCP |
VIRTCHNL2_CAP_RSC_IPV6_TCP);
caps.other_caps =
cpu_to_le64(VIRTCHNL2_CAP_SRIOV |
VIRTCHNL2_CAP_MACFILTER |
VIRTCHNL2_CAP_SPLITQ_QSCHED |
VIRTCHNL2_CAP_PROMISC |
VIRTCHNL2_CAP_LOOPBACK);
return idpf_send_mb_msg(adapter, VIRTCHNL2_OP_GET_CAPS, sizeof(caps),
(u8 *)&caps);
}
/**
* idpf_recv_get_caps_msg - Receive virtchnl get capabilities message
* @adapter: Driver specific private structure
*
* Receive virtchnl get capabilities message. Returns 0 on success, negative on
* failure.
*/
static int idpf_recv_get_caps_msg(struct idpf_adapter *adapter)
{
return idpf_recv_mb_msg(adapter, VIRTCHNL2_OP_GET_CAPS, &adapter->caps,
sizeof(struct virtchnl2_get_capabilities));
}
/**
* idpf_vport_alloc_max_qs - Allocate max queues for a vport
* @adapter: Driver specific private structure
* @max_q: vport max queue structure
*/
int idpf_vport_alloc_max_qs(struct idpf_adapter *adapter,
struct idpf_vport_max_q *max_q)
{
struct idpf_avail_queue_info *avail_queues = &adapter->avail_queues;
struct virtchnl2_get_capabilities *caps = &adapter->caps;
u16 default_vports = idpf_get_default_vports(adapter);
int max_rx_q, max_tx_q;
mutex_lock(&adapter->queue_lock);
max_rx_q = le16_to_cpu(caps->max_rx_q) / default_vports;
max_tx_q = le16_to_cpu(caps->max_tx_q) / default_vports;
if (adapter->num_alloc_vports < default_vports) {
max_q->max_rxq = min_t(u16, max_rx_q, IDPF_MAX_Q);
max_q->max_txq = min_t(u16, max_tx_q, IDPF_MAX_Q);
} else {
max_q->max_rxq = IDPF_MIN_Q;
max_q->max_txq = IDPF_MIN_Q;
}
max_q->max_bufq = max_q->max_rxq * IDPF_MAX_BUFQS_PER_RXQ_GRP;
max_q->max_complq = max_q->max_txq;
if (avail_queues->avail_rxq < max_q->max_rxq ||
avail_queues->avail_txq < max_q->max_txq ||
avail_queues->avail_bufq < max_q->max_bufq ||
avail_queues->avail_complq < max_q->max_complq) {
mutex_unlock(&adapter->queue_lock);
return -EINVAL;
}
avail_queues->avail_rxq -= max_q->max_rxq;
avail_queues->avail_txq -= max_q->max_txq;
avail_queues->avail_bufq -= max_q->max_bufq;
avail_queues->avail_complq -= max_q->max_complq;
mutex_unlock(&adapter->queue_lock);
return 0;
}
/**
* idpf_vport_dealloc_max_qs - Deallocate max queues of a vport
* @adapter: Driver specific private structure
* @max_q: vport max queue structure
*/
void idpf_vport_dealloc_max_qs(struct idpf_adapter *adapter,
struct idpf_vport_max_q *max_q)
{
struct idpf_avail_queue_info *avail_queues;
mutex_lock(&adapter->queue_lock);
avail_queues = &adapter->avail_queues;
avail_queues->avail_rxq += max_q->max_rxq;
avail_queues->avail_txq += max_q->max_txq;
avail_queues->avail_bufq += max_q->max_bufq;
avail_queues->avail_complq += max_q->max_complq;
mutex_unlock(&adapter->queue_lock);
}
/**
* idpf_init_avail_queues - Initialize available queues on the device
* @adapter: Driver specific private structure
*/
static void idpf_init_avail_queues(struct idpf_adapter *adapter)
{
struct idpf_avail_queue_info *avail_queues = &adapter->avail_queues;
struct virtchnl2_get_capabilities *caps = &adapter->caps;
avail_queues->avail_rxq = le16_to_cpu(caps->max_rx_q);
avail_queues->avail_txq = le16_to_cpu(caps->max_tx_q);
avail_queues->avail_bufq = le16_to_cpu(caps->max_rx_bufq);
avail_queues->avail_complq = le16_to_cpu(caps->max_tx_complq);
}
/**
* idpf_get_reg_intr_vecs - Get vector queue register offset
* @vport: virtual port structure
* @reg_vals: Register offsets to store in
*
* Returns number of registers that got populated
*/
int idpf_get_reg_intr_vecs(struct idpf_vport *vport,
struct idpf_vec_regs *reg_vals)
{
struct virtchnl2_vector_chunks *chunks;
struct idpf_vec_regs reg_val;
u16 num_vchunks, num_vec;
int num_regs = 0, i, j;
chunks = &vport->adapter->req_vec_chunks->vchunks;
num_vchunks = le16_to_cpu(chunks->num_vchunks);
for (j = 0; j < num_vchunks; j++) {
struct virtchnl2_vector_chunk *chunk;
u32 dynctl_reg_spacing;
u32 itrn_reg_spacing;
chunk = &chunks->vchunks[j];
num_vec = le16_to_cpu(chunk->num_vectors);
reg_val.dyn_ctl_reg = le32_to_cpu(chunk->dynctl_reg_start);
reg_val.itrn_reg = le32_to_cpu(chunk->itrn_reg_start);
reg_val.itrn_index_spacing = le32_to_cpu(chunk->itrn_index_spacing);
dynctl_reg_spacing = le32_to_cpu(chunk->dynctl_reg_spacing);
itrn_reg_spacing = le32_to_cpu(chunk->itrn_reg_spacing);
for (i = 0; i < num_vec; i++) {
reg_vals[num_regs].dyn_ctl_reg = reg_val.dyn_ctl_reg;
reg_vals[num_regs].itrn_reg = reg_val.itrn_reg;
reg_vals[num_regs].itrn_index_spacing =
reg_val.itrn_index_spacing;
reg_val.dyn_ctl_reg += dynctl_reg_spacing;
reg_val.itrn_reg += itrn_reg_spacing;
num_regs++;
}
}
return num_regs;
}
/**
* idpf_vport_get_q_reg - Get the queue registers for the vport
* @reg_vals: register values needing to be set
* @num_regs: amount we expect to fill
* @q_type: queue model
* @chunks: queue regs received over mailbox
*
* This function parses the queue register offsets from the queue register
* chunk information, with a specific queue type and stores it into the array
* passed as an argument. It returns the actual number of queue registers that
* are filled.
*/
static int idpf_vport_get_q_reg(u32 *reg_vals, int num_regs, u32 q_type,
struct virtchnl2_queue_reg_chunks *chunks)
{
u16 num_chunks = le16_to_cpu(chunks->num_chunks);
int reg_filled = 0, i;
u32 reg_val;
while (num_chunks--) {
struct virtchnl2_queue_reg_chunk *chunk;
u16 num_q;
chunk = &chunks->chunks[num_chunks];
if (le32_to_cpu(chunk->type) != q_type)
continue;
num_q = le32_to_cpu(chunk->num_queues);
reg_val = le64_to_cpu(chunk->qtail_reg_start);
for (i = 0; i < num_q && reg_filled < num_regs ; i++) {
reg_vals[reg_filled++] = reg_val;
reg_val += le32_to_cpu(chunk->qtail_reg_spacing);
}
}
return reg_filled;
}
/**
* __idpf_queue_reg_init - initialize queue registers
* @vport: virtual port structure
* @reg_vals: registers we are initializing
* @num_regs: how many registers there are in total
* @q_type: queue model
*
* Return number of queues that are initialized
*/
static int __idpf_queue_reg_init(struct idpf_vport *vport, u32 *reg_vals,
int num_regs, u32 q_type)
{
struct idpf_adapter *adapter = vport->adapter;
struct idpf_queue *q;
int i, j, k = 0;
switch (q_type) {
case VIRTCHNL2_QUEUE_TYPE_TX:
for (i = 0; i < vport->num_txq_grp; i++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
for (j = 0; j < tx_qgrp->num_txq && k < num_regs; j++, k++)
tx_qgrp->txqs[j]->tail =
idpf_get_reg_addr(adapter, reg_vals[k]);
}
break;
case VIRTCHNL2_QUEUE_TYPE_RX:
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u16 num_rxq = rx_qgrp->singleq.num_rxq;
for (j = 0; j < num_rxq && k < num_regs; j++, k++) {
q = rx_qgrp->singleq.rxqs[j];
q->tail = idpf_get_reg_addr(adapter,
reg_vals[k]);
}
}
break;
case VIRTCHNL2_QUEUE_TYPE_RX_BUFFER:
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u8 num_bufqs = vport->num_bufqs_per_qgrp;
for (j = 0; j < num_bufqs && k < num_regs; j++, k++) {
q = &rx_qgrp->splitq.bufq_sets[j].bufq;
q->tail = idpf_get_reg_addr(adapter,
reg_vals[k]);
}
}
break;
default:
break;
}
return k;
}
/**
* idpf_queue_reg_init - initialize queue registers
* @vport: virtual port structure
*
* Return 0 on success, negative on failure
*/
int idpf_queue_reg_init(struct idpf_vport *vport)
{
struct virtchnl2_create_vport *vport_params;
struct virtchnl2_queue_reg_chunks *chunks;
struct idpf_vport_config *vport_config;
u16 vport_idx = vport->idx;
int num_regs, ret = 0;
u32 *reg_vals;
/* We may never deal with more than 256 same type of queues */
reg_vals = kzalloc(sizeof(void *) * IDPF_LARGE_MAX_Q, GFP_KERNEL);
if (!reg_vals)
return -ENOMEM;
vport_config = vport->adapter->vport_config[vport_idx];
if (vport_config->req_qs_chunks) {
struct virtchnl2_add_queues *vc_aq =
(struct virtchnl2_add_queues *)vport_config->req_qs_chunks;
chunks = &vc_aq->chunks;
} else {
vport_params = vport->adapter->vport_params_recvd[vport_idx];
chunks = &vport_params->chunks;
}
/* Initialize Tx queue tail register address */
num_regs = idpf_vport_get_q_reg(reg_vals, IDPF_LARGE_MAX_Q,
VIRTCHNL2_QUEUE_TYPE_TX,
chunks);
if (num_regs < vport->num_txq) {
ret = -EINVAL;
goto free_reg_vals;
}
num_regs = __idpf_queue_reg_init(vport, reg_vals, num_regs,
VIRTCHNL2_QUEUE_TYPE_TX);
if (num_regs < vport->num_txq) {
ret = -EINVAL;
goto free_reg_vals;
}
/* Initialize Rx/buffer queue tail register address based on Rx queue
* model
*/
if (idpf_is_queue_model_split(vport->rxq_model)) {
num_regs = idpf_vport_get_q_reg(reg_vals, IDPF_LARGE_MAX_Q,
VIRTCHNL2_QUEUE_TYPE_RX_BUFFER,
chunks);
if (num_regs < vport->num_bufq) {
ret = -EINVAL;
goto free_reg_vals;
}
num_regs = __idpf_queue_reg_init(vport, reg_vals, num_regs,
VIRTCHNL2_QUEUE_TYPE_RX_BUFFER);
if (num_regs < vport->num_bufq) {
ret = -EINVAL;
goto free_reg_vals;
}
} else {
num_regs = idpf_vport_get_q_reg(reg_vals, IDPF_LARGE_MAX_Q,
VIRTCHNL2_QUEUE_TYPE_RX,
chunks);
if (num_regs < vport->num_rxq) {
ret = -EINVAL;
goto free_reg_vals;
}
num_regs = __idpf_queue_reg_init(vport, reg_vals, num_regs,
VIRTCHNL2_QUEUE_TYPE_RX);
if (num_regs < vport->num_rxq) {
ret = -EINVAL;
goto free_reg_vals;
}
}
free_reg_vals:
kfree(reg_vals);
return ret;
}
/**
* idpf_send_create_vport_msg - Send virtchnl create vport message
* @adapter: Driver specific private structure
* @max_q: vport max queue info
*
* send virtchnl creae vport message
*
* Returns 0 on success, negative on failure
*/
int idpf_send_create_vport_msg(struct idpf_adapter *adapter,
struct idpf_vport_max_q *max_q)
{
struct virtchnl2_create_vport *vport_msg;
u16 idx = adapter->next_vport;
int err, buf_size;
buf_size = sizeof(struct virtchnl2_create_vport);
if (!adapter->vport_params_reqd[idx]) {
adapter->vport_params_reqd[idx] = kzalloc(buf_size,
GFP_KERNEL);
if (!adapter->vport_params_reqd[idx])
return -ENOMEM;
}
vport_msg = adapter->vport_params_reqd[idx];
vport_msg->vport_type = cpu_to_le16(VIRTCHNL2_VPORT_TYPE_DEFAULT);
vport_msg->vport_index = cpu_to_le16(idx);
if (adapter->req_tx_splitq)
vport_msg->txq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SPLIT);
else
vport_msg->txq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
if (adapter->req_rx_splitq)
vport_msg->rxq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SPLIT);
else
vport_msg->rxq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
err = idpf_vport_calc_total_qs(adapter, idx, vport_msg, max_q);
if (err) {
dev_err(&adapter->pdev->dev, "Enough queues are not available");
return err;
}
mutex_lock(&adapter->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_CREATE_VPORT, buf_size,
(u8 *)vport_msg);
if (err)
goto rel_lock;
err = idpf_wait_for_event(adapter, NULL, IDPF_VC_CREATE_VPORT,
IDPF_VC_CREATE_VPORT_ERR);
if (err) {
dev_err(&adapter->pdev->dev, "Failed to receive create vport message");
goto rel_lock;
}
if (!adapter->vport_params_recvd[idx]) {
adapter->vport_params_recvd[idx] = kzalloc(IDPF_CTLQ_MAX_BUF_LEN,
GFP_KERNEL);
if (!adapter->vport_params_recvd[idx]) {
err = -ENOMEM;
goto rel_lock;
}
}
vport_msg = adapter->vport_params_recvd[idx];
memcpy(vport_msg, adapter->vc_msg, IDPF_CTLQ_MAX_BUF_LEN);
rel_lock:
mutex_unlock(&adapter->vc_buf_lock);
return err;
}
/**
* idpf_check_supported_desc_ids - Verify we have required descriptor support
* @vport: virtual port structure
*
* Return 0 on success, error on failure
*/
int idpf_check_supported_desc_ids(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_create_vport *vport_msg;
u64 rx_desc_ids, tx_desc_ids;
vport_msg = adapter->vport_params_recvd[vport->idx];
rx_desc_ids = le64_to_cpu(vport_msg->rx_desc_ids);
tx_desc_ids = le64_to_cpu(vport_msg->tx_desc_ids);
if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
if (!(rx_desc_ids & VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M)) {
dev_info(&adapter->pdev->dev, "Minimum RX descriptor support not provided, using the default\n");
vport_msg->rx_desc_ids = cpu_to_le64(VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M);
}
} else {
if (!(rx_desc_ids & VIRTCHNL2_RXDID_2_FLEX_SQ_NIC_M))
vport->base_rxd = true;
}
if (vport->txq_model != VIRTCHNL2_QUEUE_MODEL_SPLIT)
return 0;
if ((tx_desc_ids & MIN_SUPPORT_TXDID) != MIN_SUPPORT_TXDID) {
dev_info(&adapter->pdev->dev, "Minimum TX descriptor support not provided, using the default\n");
vport_msg->tx_desc_ids = cpu_to_le64(MIN_SUPPORT_TXDID);
}
return 0;
}
/**
* idpf_send_destroy_vport_msg - Send virtchnl destroy vport message
* @vport: virtual port data structure
*
* Send virtchnl destroy vport message. Returns 0 on success, negative on
* failure.
*/
int idpf_send_destroy_vport_msg(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_vport v_id;
int err;
v_id.vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_DESTROY_VPORT,
sizeof(v_id), (u8 *)&v_id);
if (err)
goto rel_lock;
err = idpf_min_wait_for_event(adapter, vport, IDPF_VC_DESTROY_VPORT,
IDPF_VC_DESTROY_VPORT_ERR);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
return err;
}
/**
* idpf_send_enable_vport_msg - Send virtchnl enable vport message
* @vport: virtual port data structure
*
* Send enable vport virtchnl message. Returns 0 on success, negative on
* failure.
*/
int idpf_send_enable_vport_msg(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_vport v_id;
int err;
v_id.vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_ENABLE_VPORT,
sizeof(v_id), (u8 *)&v_id);
if (err)
goto rel_lock;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_ENA_VPORT,
IDPF_VC_ENA_VPORT_ERR);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
return err;
}
/**
* idpf_send_disable_vport_msg - Send virtchnl disable vport message
* @vport: virtual port data structure
*
* Send disable vport virtchnl message. Returns 0 on success, negative on
* failure.
*/
int idpf_send_disable_vport_msg(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_vport v_id;
int err;
v_id.vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_DISABLE_VPORT,
sizeof(v_id), (u8 *)&v_id);
if (err)
goto rel_lock;
err = idpf_min_wait_for_event(adapter, vport, IDPF_VC_DIS_VPORT,
IDPF_VC_DIS_VPORT_ERR);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
return err;
}
/**
* idpf_send_config_tx_queues_msg - Send virtchnl config tx queues message
* @vport: virtual port data structure
*
* Send config tx queues virtchnl message. Returns 0 on success, negative on
* failure.
*/
static int idpf_send_config_tx_queues_msg(struct idpf_vport *vport)
{
struct virtchnl2_config_tx_queues *ctq;
u32 config_sz, chunk_sz, buf_sz;
int totqs, num_msgs, num_chunks;
struct virtchnl2_txq_info *qi;
int err = 0, i, k = 0;
totqs = vport->num_txq + vport->num_complq;
qi = kcalloc(totqs, sizeof(struct virtchnl2_txq_info), GFP_KERNEL);
if (!qi)
return -ENOMEM;
/* Populate the queue info buffer with all queue context info */
for (i = 0; i < vport->num_txq_grp; i++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
int j, sched_mode;
for (j = 0; j < tx_qgrp->num_txq; j++, k++) {
qi[k].queue_id =
cpu_to_le32(tx_qgrp->txqs[j]->q_id);
qi[k].model =
cpu_to_le16(vport->txq_model);
qi[k].type =
cpu_to_le32(tx_qgrp->txqs[j]->q_type);
qi[k].ring_len =
cpu_to_le16(tx_qgrp->txqs[j]->desc_count);
qi[k].dma_ring_addr =
cpu_to_le64(tx_qgrp->txqs[j]->dma);
if (idpf_is_queue_model_split(vport->txq_model)) {
struct idpf_queue *q = tx_qgrp->txqs[j];
qi[k].tx_compl_queue_id =
cpu_to_le16(tx_qgrp->complq->q_id);
qi[k].relative_queue_id = cpu_to_le16(j);
if (test_bit(__IDPF_Q_FLOW_SCH_EN, q->flags))
qi[k].sched_mode =
cpu_to_le16(VIRTCHNL2_TXQ_SCHED_MODE_FLOW);
else
qi[k].sched_mode =
cpu_to_le16(VIRTCHNL2_TXQ_SCHED_MODE_QUEUE);
} else {
qi[k].sched_mode =
cpu_to_le16(VIRTCHNL2_TXQ_SCHED_MODE_QUEUE);
}
}
if (!idpf_is_queue_model_split(vport->txq_model))
continue;
qi[k].queue_id = cpu_to_le32(tx_qgrp->complq->q_id);
qi[k].model = cpu_to_le16(vport->txq_model);
qi[k].type = cpu_to_le32(tx_qgrp->complq->q_type);
qi[k].ring_len = cpu_to_le16(tx_qgrp->complq->desc_count);
qi[k].dma_ring_addr = cpu_to_le64(tx_qgrp->complq->dma);
if (test_bit(__IDPF_Q_FLOW_SCH_EN, tx_qgrp->complq->flags))
sched_mode = VIRTCHNL2_TXQ_SCHED_MODE_FLOW;
else
sched_mode = VIRTCHNL2_TXQ_SCHED_MODE_QUEUE;
qi[k].sched_mode = cpu_to_le16(sched_mode);
k++;
}
/* Make sure accounting agrees */
if (k != totqs) {
err = -EINVAL;
goto error;
}
/* Chunk up the queue contexts into multiple messages to avoid
* sending a control queue message buffer that is too large
*/
config_sz = sizeof(struct virtchnl2_config_tx_queues);
chunk_sz = sizeof(struct virtchnl2_txq_info);
num_chunks = min_t(u32, IDPF_NUM_CHUNKS_PER_MSG(config_sz, chunk_sz),
totqs);
num_msgs = DIV_ROUND_UP(totqs, num_chunks);
buf_sz = struct_size(ctq, qinfo, num_chunks);
ctq = kzalloc(buf_sz, GFP_KERNEL);
if (!ctq) {
err = -ENOMEM;
goto error;
}
mutex_lock(&vport->vc_buf_lock);
for (i = 0, k = 0; i < num_msgs; i++) {
memset(ctq, 0, buf_sz);
ctq->vport_id = cpu_to_le32(vport->vport_id);
ctq->num_qinfo = cpu_to_le16(num_chunks);
memcpy(ctq->qinfo, &qi[k], chunk_sz * num_chunks);
err = idpf_send_mb_msg(vport->adapter,
VIRTCHNL2_OP_CONFIG_TX_QUEUES,
buf_sz, (u8 *)ctq);
if (err)
goto mbx_error;
err = idpf_wait_for_event(vport->adapter, vport,
IDPF_VC_CONFIG_TXQ,
IDPF_VC_CONFIG_TXQ_ERR);
if (err)
goto mbx_error;
k += num_chunks;
totqs -= num_chunks;
num_chunks = min(num_chunks, totqs);
/* Recalculate buffer size */
buf_sz = struct_size(ctq, qinfo, num_chunks);
}
mbx_error:
mutex_unlock(&vport->vc_buf_lock);
kfree(ctq);
error:
kfree(qi);
return err;
}
/**
* idpf_send_config_rx_queues_msg - Send virtchnl config rx queues message
* @vport: virtual port data structure
*
* Send config rx queues virtchnl message. Returns 0 on success, negative on
* failure.
*/
static int idpf_send_config_rx_queues_msg(struct idpf_vport *vport)
{
struct virtchnl2_config_rx_queues *crq;
u32 config_sz, chunk_sz, buf_sz;
int totqs, num_msgs, num_chunks;
struct virtchnl2_rxq_info *qi;
int err = 0, i, k = 0;
totqs = vport->num_rxq + vport->num_bufq;
qi = kcalloc(totqs, sizeof(struct virtchnl2_rxq_info), GFP_KERNEL);
if (!qi)
return -ENOMEM;
/* Populate the queue info buffer with all queue context info */
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u16 num_rxq;
int j;
if (!idpf_is_queue_model_split(vport->rxq_model))
goto setup_rxqs;
for (j = 0; j < vport->num_bufqs_per_qgrp; j++, k++) {
struct idpf_queue *bufq =
&rx_qgrp->splitq.bufq_sets[j].bufq;
qi[k].queue_id = cpu_to_le32(bufq->q_id);
qi[k].model = cpu_to_le16(vport->rxq_model);
qi[k].type = cpu_to_le32(bufq->q_type);
qi[k].desc_ids = cpu_to_le64(VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M);
qi[k].ring_len = cpu_to_le16(bufq->desc_count);
qi[k].dma_ring_addr = cpu_to_le64(bufq->dma);
qi[k].data_buffer_size = cpu_to_le32(bufq->rx_buf_size);
qi[k].buffer_notif_stride = bufq->rx_buf_stride;
qi[k].rx_buffer_low_watermark =
cpu_to_le16(bufq->rx_buffer_low_watermark);
if (idpf_is_feature_ena(vport, NETIF_F_GRO_HW))
qi[k].qflags |= cpu_to_le16(VIRTCHNL2_RXQ_RSC);
}
setup_rxqs:
if (idpf_is_queue_model_split(vport->rxq_model))
num_rxq = rx_qgrp->splitq.num_rxq_sets;
else
num_rxq = rx_qgrp->singleq.num_rxq;
for (j = 0; j < num_rxq; j++, k++) {
struct idpf_queue *rxq;
if (!idpf_is_queue_model_split(vport->rxq_model)) {
rxq = rx_qgrp->singleq.rxqs[j];
goto common_qi_fields;
}
rxq = &rx_qgrp->splitq.rxq_sets[j]->rxq;
qi[k].rx_bufq1_id =
cpu_to_le16(rxq->rxq_grp->splitq.bufq_sets[0].bufq.q_id);
if (vport->num_bufqs_per_qgrp > IDPF_SINGLE_BUFQ_PER_RXQ_GRP) {
qi[k].bufq2_ena = IDPF_BUFQ2_ENA;
qi[k].rx_bufq2_id =
cpu_to_le16(rxq->rxq_grp->splitq.bufq_sets[1].bufq.q_id);
}
qi[k].rx_buffer_low_watermark =
cpu_to_le16(rxq->rx_buffer_low_watermark);
if (idpf_is_feature_ena(vport, NETIF_F_GRO_HW))
qi[k].qflags |= cpu_to_le16(VIRTCHNL2_RXQ_RSC);
common_qi_fields:
if (rxq->rx_hsplit_en) {
qi[k].qflags |=
cpu_to_le16(VIRTCHNL2_RXQ_HDR_SPLIT);
qi[k].hdr_buffer_size =
cpu_to_le16(rxq->rx_hbuf_size);
}
qi[k].queue_id = cpu_to_le32(rxq->q_id);
qi[k].model = cpu_to_le16(vport->rxq_model);
qi[k].type = cpu_to_le32(rxq->q_type);
qi[k].ring_len = cpu_to_le16(rxq->desc_count);
qi[k].dma_ring_addr = cpu_to_le64(rxq->dma);
qi[k].max_pkt_size = cpu_to_le32(rxq->rx_max_pkt_size);
qi[k].data_buffer_size = cpu_to_le32(rxq->rx_buf_size);
qi[k].qflags |=
cpu_to_le16(VIRTCHNL2_RX_DESC_SIZE_32BYTE);
qi[k].desc_ids = cpu_to_le64(rxq->rxdids);
}
}
/* Make sure accounting agrees */
if (k != totqs) {
err = -EINVAL;
goto error;
}
/* Chunk up the queue contexts into multiple messages to avoid
* sending a control queue message buffer that is too large
*/
config_sz = sizeof(struct virtchnl2_config_rx_queues);
chunk_sz = sizeof(struct virtchnl2_rxq_info);
num_chunks = min_t(u32, IDPF_NUM_CHUNKS_PER_MSG(config_sz, chunk_sz),
totqs);
num_msgs = DIV_ROUND_UP(totqs, num_chunks);
buf_sz = struct_size(crq, qinfo, num_chunks);
crq = kzalloc(buf_sz, GFP_KERNEL);
if (!crq) {
err = -ENOMEM;
goto error;
}
mutex_lock(&vport->vc_buf_lock);
for (i = 0, k = 0; i < num_msgs; i++) {
memset(crq, 0, buf_sz);
crq->vport_id = cpu_to_le32(vport->vport_id);
crq->num_qinfo = cpu_to_le16(num_chunks);
memcpy(crq->qinfo, &qi[k], chunk_sz * num_chunks);
err = idpf_send_mb_msg(vport->adapter,
VIRTCHNL2_OP_CONFIG_RX_QUEUES,
buf_sz, (u8 *)crq);
if (err)
goto mbx_error;
err = idpf_wait_for_event(vport->adapter, vport,
IDPF_VC_CONFIG_RXQ,
IDPF_VC_CONFIG_RXQ_ERR);
if (err)
goto mbx_error;
k += num_chunks;
totqs -= num_chunks;
num_chunks = min(num_chunks, totqs);
/* Recalculate buffer size */
buf_sz = struct_size(crq, qinfo, num_chunks);
}
mbx_error:
mutex_unlock(&vport->vc_buf_lock);
kfree(crq);
error:
kfree(qi);
return err;
}
/**
* idpf_send_ena_dis_queues_msg - Send virtchnl enable or disable
* queues message
* @vport: virtual port data structure
* @vc_op: virtchnl op code to send
*
* Send enable or disable queues virtchnl message. Returns 0 on success,
* negative on failure.
*/
static int idpf_send_ena_dis_queues_msg(struct idpf_vport *vport, u32 vc_op)
{
u32 num_msgs, num_chunks, num_txq, num_rxq, num_q;
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_del_ena_dis_queues *eq;
struct virtchnl2_queue_chunks *qcs;
struct virtchnl2_queue_chunk *qc;
u32 config_sz, chunk_sz, buf_sz;
int i, j, k = 0, err = 0;
/* validate virtchnl op */
switch (vc_op) {
case VIRTCHNL2_OP_ENABLE_QUEUES:
case VIRTCHNL2_OP_DISABLE_QUEUES:
break;
default:
return -EINVAL;
}
num_txq = vport->num_txq + vport->num_complq;
num_rxq = vport->num_rxq + vport->num_bufq;
num_q = num_txq + num_rxq;
buf_sz = sizeof(struct virtchnl2_queue_chunk) * num_q;
qc = kzalloc(buf_sz, GFP_KERNEL);
if (!qc)
return -ENOMEM;
for (i = 0; i < vport->num_txq_grp; i++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
for (j = 0; j < tx_qgrp->num_txq; j++, k++) {
qc[k].type = cpu_to_le32(tx_qgrp->txqs[j]->q_type);
qc[k].start_queue_id = cpu_to_le32(tx_qgrp->txqs[j]->q_id);
qc[k].num_queues = cpu_to_le32(IDPF_NUMQ_PER_CHUNK);
}
}
if (vport->num_txq != k) {
err = -EINVAL;
goto error;
}
if (!idpf_is_queue_model_split(vport->txq_model))
goto setup_rx;
for (i = 0; i < vport->num_txq_grp; i++, k++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
qc[k].type = cpu_to_le32(tx_qgrp->complq->q_type);
qc[k].start_queue_id = cpu_to_le32(tx_qgrp->complq->q_id);
qc[k].num_queues = cpu_to_le32(IDPF_NUMQ_PER_CHUNK);
}
if (vport->num_complq != (k - vport->num_txq)) {
err = -EINVAL;
goto error;
}
setup_rx:
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
if (idpf_is_queue_model_split(vport->rxq_model))
num_rxq = rx_qgrp->splitq.num_rxq_sets;
else
num_rxq = rx_qgrp->singleq.num_rxq;
for (j = 0; j < num_rxq; j++, k++) {
if (idpf_is_queue_model_split(vport->rxq_model)) {
qc[k].start_queue_id =
cpu_to_le32(rx_qgrp->splitq.rxq_sets[j]->rxq.q_id);
qc[k].type =
cpu_to_le32(rx_qgrp->splitq.rxq_sets[j]->rxq.q_type);
} else {
qc[k].start_queue_id =
cpu_to_le32(rx_qgrp->singleq.rxqs[j]->q_id);
qc[k].type =
cpu_to_le32(rx_qgrp->singleq.rxqs[j]->q_type);
}
qc[k].num_queues = cpu_to_le32(IDPF_NUMQ_PER_CHUNK);
}
}
if (vport->num_rxq != k - (vport->num_txq + vport->num_complq)) {
err = -EINVAL;
goto error;
}
if (!idpf_is_queue_model_split(vport->rxq_model))
goto send_msg;
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
for (j = 0; j < vport->num_bufqs_per_qgrp; j++, k++) {
struct idpf_queue *q;
q = &rx_qgrp->splitq.bufq_sets[j].bufq;
qc[k].type = cpu_to_le32(q->q_type);
qc[k].start_queue_id = cpu_to_le32(q->q_id);
qc[k].num_queues = cpu_to_le32(IDPF_NUMQ_PER_CHUNK);
}
}
if (vport->num_bufq != k - (vport->num_txq +
vport->num_complq +
vport->num_rxq)) {
err = -EINVAL;
goto error;
}
send_msg:
/* Chunk up the queue info into multiple messages */
config_sz = sizeof(struct virtchnl2_del_ena_dis_queues);
chunk_sz = sizeof(struct virtchnl2_queue_chunk);
num_chunks = min_t(u32, IDPF_NUM_CHUNKS_PER_MSG(config_sz, chunk_sz),
num_q);
num_msgs = DIV_ROUND_UP(num_q, num_chunks);
buf_sz = struct_size(eq, chunks.chunks, num_chunks);
eq = kzalloc(buf_sz, GFP_KERNEL);
if (!eq) {
err = -ENOMEM;
goto error;
}
mutex_lock(&vport->vc_buf_lock);
for (i = 0, k = 0; i < num_msgs; i++) {
memset(eq, 0, buf_sz);
eq->vport_id = cpu_to_le32(vport->vport_id);
eq->chunks.num_chunks = cpu_to_le16(num_chunks);
qcs = &eq->chunks;
memcpy(qcs->chunks, &qc[k], chunk_sz * num_chunks);
err = idpf_send_mb_msg(adapter, vc_op, buf_sz, (u8 *)eq);
if (err)
goto mbx_error;
if (vc_op == VIRTCHNL2_OP_ENABLE_QUEUES)
err = idpf_wait_for_event(adapter, vport,
IDPF_VC_ENA_QUEUES,
IDPF_VC_ENA_QUEUES_ERR);
else
err = idpf_min_wait_for_event(adapter, vport,
IDPF_VC_DIS_QUEUES,
IDPF_VC_DIS_QUEUES_ERR);
if (err)
goto mbx_error;
k += num_chunks;
num_q -= num_chunks;
num_chunks = min(num_chunks, num_q);
/* Recalculate buffer size */
buf_sz = struct_size(eq, chunks.chunks, num_chunks);
}
mbx_error:
mutex_unlock(&vport->vc_buf_lock);
kfree(eq);
error:
kfree(qc);
return err;
}
/**
* idpf_send_map_unmap_queue_vector_msg - Send virtchnl map or unmap queue
* vector message
* @vport: virtual port data structure
* @map: true for map and false for unmap
*
* Send map or unmap queue vector virtchnl message. Returns 0 on success,
* negative on failure.
*/
int idpf_send_map_unmap_queue_vector_msg(struct idpf_vport *vport, bool map)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_queue_vector_maps *vqvm;
struct virtchnl2_queue_vector *vqv;
u32 config_sz, chunk_sz, buf_sz;
u32 num_msgs, num_chunks, num_q;
int i, j, k = 0, err = 0;
num_q = vport->num_txq + vport->num_rxq;
buf_sz = sizeof(struct virtchnl2_queue_vector) * num_q;
vqv = kzalloc(buf_sz, GFP_KERNEL);
if (!vqv)
return -ENOMEM;
for (i = 0; i < vport->num_txq_grp; i++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
for (j = 0; j < tx_qgrp->num_txq; j++, k++) {
vqv[k].queue_type = cpu_to_le32(tx_qgrp->txqs[j]->q_type);
vqv[k].queue_id = cpu_to_le32(tx_qgrp->txqs[j]->q_id);
if (idpf_is_queue_model_split(vport->txq_model)) {
vqv[k].vector_id =
cpu_to_le16(tx_qgrp->complq->q_vector->v_idx);
vqv[k].itr_idx =
cpu_to_le32(tx_qgrp->complq->q_vector->tx_itr_idx);
} else {
vqv[k].vector_id =
cpu_to_le16(tx_qgrp->txqs[j]->q_vector->v_idx);
vqv[k].itr_idx =
cpu_to_le32(tx_qgrp->txqs[j]->q_vector->tx_itr_idx);
}
}
}
if (vport->num_txq != k) {
err = -EINVAL;
goto error;
}
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u16 num_rxq;
if (idpf_is_queue_model_split(vport->rxq_model))
num_rxq = rx_qgrp->splitq.num_rxq_sets;
else
num_rxq = rx_qgrp->singleq.num_rxq;
for (j = 0; j < num_rxq; j++, k++) {
struct idpf_queue *rxq;
if (idpf_is_queue_model_split(vport->rxq_model))
rxq = &rx_qgrp->splitq.rxq_sets[j]->rxq;
else
rxq = rx_qgrp->singleq.rxqs[j];
vqv[k].queue_type = cpu_to_le32(rxq->q_type);
vqv[k].queue_id = cpu_to_le32(rxq->q_id);
vqv[k].vector_id = cpu_to_le16(rxq->q_vector->v_idx);
vqv[k].itr_idx = cpu_to_le32(rxq->q_vector->rx_itr_idx);
}
}
if (idpf_is_queue_model_split(vport->txq_model)) {
if (vport->num_rxq != k - vport->num_complq) {
err = -EINVAL;
goto error;
}
} else {
if (vport->num_rxq != k - vport->num_txq) {
err = -EINVAL;
goto error;
}
}
/* Chunk up the vector info into multiple messages */
config_sz = sizeof(struct virtchnl2_queue_vector_maps);
chunk_sz = sizeof(struct virtchnl2_queue_vector);
num_chunks = min_t(u32, IDPF_NUM_CHUNKS_PER_MSG(config_sz, chunk_sz),
num_q);
num_msgs = DIV_ROUND_UP(num_q, num_chunks);
buf_sz = struct_size(vqvm, qv_maps, num_chunks);
vqvm = kzalloc(buf_sz, GFP_KERNEL);
if (!vqvm) {
err = -ENOMEM;
goto error;
}
mutex_lock(&vport->vc_buf_lock);
for (i = 0, k = 0; i < num_msgs; i++) {
memset(vqvm, 0, buf_sz);
vqvm->vport_id = cpu_to_le32(vport->vport_id);
vqvm->num_qv_maps = cpu_to_le16(num_chunks);
memcpy(vqvm->qv_maps, &vqv[k], chunk_sz * num_chunks);
if (map) {
err = idpf_send_mb_msg(adapter,
VIRTCHNL2_OP_MAP_QUEUE_VECTOR,
buf_sz, (u8 *)vqvm);
if (!err)
err = idpf_wait_for_event(adapter, vport,
IDPF_VC_MAP_IRQ,
IDPF_VC_MAP_IRQ_ERR);
} else {
err = idpf_send_mb_msg(adapter,
VIRTCHNL2_OP_UNMAP_QUEUE_VECTOR,
buf_sz, (u8 *)vqvm);
if (!err)
err =
idpf_min_wait_for_event(adapter, vport,
IDPF_VC_UNMAP_IRQ,
IDPF_VC_UNMAP_IRQ_ERR);
}
if (err)
goto mbx_error;
k += num_chunks;
num_q -= num_chunks;
num_chunks = min(num_chunks, num_q);
/* Recalculate buffer size */
buf_sz = struct_size(vqvm, qv_maps, num_chunks);
}
mbx_error:
mutex_unlock(&vport->vc_buf_lock);
kfree(vqvm);
error:
kfree(vqv);
return err;
}
/**
* idpf_send_enable_queues_msg - send enable queues virtchnl message
* @vport: Virtual port private data structure
*
* Will send enable queues virtchnl message. Returns 0 on success, negative on
* failure.
*/
int idpf_send_enable_queues_msg(struct idpf_vport *vport)
{
return idpf_send_ena_dis_queues_msg(vport, VIRTCHNL2_OP_ENABLE_QUEUES);
}
/**
* idpf_send_disable_queues_msg - send disable queues virtchnl message
* @vport: Virtual port private data structure
*
* Will send disable queues virtchnl message. Returns 0 on success, negative
* on failure.
*/
int idpf_send_disable_queues_msg(struct idpf_vport *vport)
{
int err, i;
err = idpf_send_ena_dis_queues_msg(vport, VIRTCHNL2_OP_DISABLE_QUEUES);
if (err)
return err;
/* switch to poll mode as interrupts will be disabled after disable
* queues virtchnl message is sent
*/
for (i = 0; i < vport->num_txq; i++)
set_bit(__IDPF_Q_POLL_MODE, vport->txqs[i]->flags);
/* schedule the napi to receive all the marker packets */
for (i = 0; i < vport->num_q_vectors; i++)
napi_schedule(&vport->q_vectors[i].napi);
return idpf_wait_for_marker_event(vport);
}
/**
* idpf_convert_reg_to_queue_chunks - Copy queue chunk information to the right
* structure
* @dchunks: Destination chunks to store data to
* @schunks: Source chunks to copy data from
* @num_chunks: number of chunks to copy
*/
static void idpf_convert_reg_to_queue_chunks(struct virtchnl2_queue_chunk *dchunks,
struct virtchnl2_queue_reg_chunk *schunks,
u16 num_chunks)
{
u16 i;
for (i = 0; i < num_chunks; i++) {
dchunks[i].type = schunks[i].type;
dchunks[i].start_queue_id = schunks[i].start_queue_id;
dchunks[i].num_queues = schunks[i].num_queues;
}
}
/**
* idpf_send_delete_queues_msg - send delete queues virtchnl message
* @vport: Virtual port private data structure
*
* Will send delete queues virtchnl message. Return 0 on success, negative on
* failure.
*/
int idpf_send_delete_queues_msg(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_create_vport *vport_params;
struct virtchnl2_queue_reg_chunks *chunks;
struct virtchnl2_del_ena_dis_queues *eq;
struct idpf_vport_config *vport_config;
u16 vport_idx = vport->idx;
int buf_size, err;
u16 num_chunks;
vport_config = adapter->vport_config[vport_idx];
if (vport_config->req_qs_chunks) {
struct virtchnl2_add_queues *vc_aq =
(struct virtchnl2_add_queues *)vport_config->req_qs_chunks;
chunks = &vc_aq->chunks;
} else {
vport_params = adapter->vport_params_recvd[vport_idx];
chunks = &vport_params->chunks;
}
num_chunks = le16_to_cpu(chunks->num_chunks);
buf_size = struct_size(eq, chunks.chunks, num_chunks);
eq = kzalloc(buf_size, GFP_KERNEL);
if (!eq)
return -ENOMEM;
eq->vport_id = cpu_to_le32(vport->vport_id);
eq->chunks.num_chunks = cpu_to_le16(num_chunks);
idpf_convert_reg_to_queue_chunks(eq->chunks.chunks, chunks->chunks,
num_chunks);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_DEL_QUEUES,
buf_size, (u8 *)eq);
if (err)
goto rel_lock;
err = idpf_min_wait_for_event(adapter, vport, IDPF_VC_DEL_QUEUES,
IDPF_VC_DEL_QUEUES_ERR);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
kfree(eq);
return err;
}
/**
* idpf_send_config_queues_msg - Send config queues virtchnl message
* @vport: Virtual port private data structure
*
* Will send config queues virtchnl message. Returns 0 on success, negative on
* failure.
*/
int idpf_send_config_queues_msg(struct idpf_vport *vport)
{
int err;
err = idpf_send_config_tx_queues_msg(vport);
if (err)
return err;
return idpf_send_config_rx_queues_msg(vport);
}
/**
* idpf_send_add_queues_msg - Send virtchnl add queues message
* @vport: Virtual port private data structure
* @num_tx_q: number of transmit queues
* @num_complq: number of transmit completion queues
* @num_rx_q: number of receive queues
* @num_rx_bufq: number of receive buffer queues
*
* Returns 0 on success, negative on failure. vport _MUST_ be const here as
* we should not change any fields within vport itself in this function.
*/
int idpf_send_add_queues_msg(const struct idpf_vport *vport, u16 num_tx_q,
u16 num_complq, u16 num_rx_q, u16 num_rx_bufq)
{
struct idpf_adapter *adapter = vport->adapter;
struct idpf_vport_config *vport_config;
struct virtchnl2_add_queues aq = { };
struct virtchnl2_add_queues *vc_msg;
u16 vport_idx = vport->idx;
int size, err;
vport_config = adapter->vport_config[vport_idx];
aq.vport_id = cpu_to_le32(vport->vport_id);
aq.num_tx_q = cpu_to_le16(num_tx_q);
aq.num_tx_complq = cpu_to_le16(num_complq);
aq.num_rx_q = cpu_to_le16(num_rx_q);
aq.num_rx_bufq = cpu_to_le16(num_rx_bufq);
mutex_lock(&((struct idpf_vport *)vport)->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_ADD_QUEUES,
sizeof(struct virtchnl2_add_queues), (u8 *)&aq);
if (err)
goto rel_lock;
/* We want vport to be const to prevent incidental code changes making
* changes to the vport config. We're making a special exception here
* to discard const to use the virtchnl.
*/
err = idpf_wait_for_event(adapter, (struct idpf_vport *)vport,
IDPF_VC_ADD_QUEUES, IDPF_VC_ADD_QUEUES_ERR);
if (err)
goto rel_lock;
kfree(vport_config->req_qs_chunks);
vport_config->req_qs_chunks = NULL;
vc_msg = (struct virtchnl2_add_queues *)vport->vc_msg;
/* compare vc_msg num queues with vport num queues */
if (le16_to_cpu(vc_msg->num_tx_q) != num_tx_q ||
le16_to_cpu(vc_msg->num_rx_q) != num_rx_q ||
le16_to_cpu(vc_msg->num_tx_complq) != num_complq ||
le16_to_cpu(vc_msg->num_rx_bufq) != num_rx_bufq) {
err = -EINVAL;
goto rel_lock;
}
size = struct_size(vc_msg, chunks.chunks,
le16_to_cpu(vc_msg->chunks.num_chunks));
vport_config->req_qs_chunks = kmemdup(vc_msg, size, GFP_KERNEL);
if (!vport_config->req_qs_chunks) {
err = -ENOMEM;
goto rel_lock;
}
rel_lock:
mutex_unlock(&((struct idpf_vport *)vport)->vc_buf_lock);
return err;
}
/**
* idpf_send_alloc_vectors_msg - Send virtchnl alloc vectors message
* @adapter: Driver specific private structure
* @num_vectors: number of vectors to be allocated
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_alloc_vectors_msg(struct idpf_adapter *adapter, u16 num_vectors)
{
struct virtchnl2_alloc_vectors *alloc_vec, *rcvd_vec;
struct virtchnl2_alloc_vectors ac = { };
u16 num_vchunks;
int size, err;
ac.num_vectors = cpu_to_le16(num_vectors);
mutex_lock(&adapter->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_ALLOC_VECTORS,
sizeof(ac), (u8 *)&ac);
if (err)
goto rel_lock;
err = idpf_wait_for_event(adapter, NULL, IDPF_VC_ALLOC_VECTORS,
IDPF_VC_ALLOC_VECTORS_ERR);
if (err)
goto rel_lock;
rcvd_vec = (struct virtchnl2_alloc_vectors *)adapter->vc_msg;
num_vchunks = le16_to_cpu(rcvd_vec->vchunks.num_vchunks);
size = struct_size(rcvd_vec, vchunks.vchunks, num_vchunks);
if (size > sizeof(adapter->vc_msg)) {
err = -EINVAL;
goto rel_lock;
}
kfree(adapter->req_vec_chunks);
adapter->req_vec_chunks = NULL;
adapter->req_vec_chunks = kmemdup(adapter->vc_msg, size, GFP_KERNEL);
if (!adapter->req_vec_chunks) {
err = -ENOMEM;
goto rel_lock;
}
alloc_vec = adapter->req_vec_chunks;
if (le16_to_cpu(alloc_vec->num_vectors) < num_vectors) {
kfree(adapter->req_vec_chunks);
adapter->req_vec_chunks = NULL;
err = -EINVAL;
}
rel_lock:
mutex_unlock(&adapter->vc_buf_lock);
return err;
}
/**
* idpf_send_dealloc_vectors_msg - Send virtchnl de allocate vectors message
* @adapter: Driver specific private structure
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_dealloc_vectors_msg(struct idpf_adapter *adapter)
{
struct virtchnl2_alloc_vectors *ac = adapter->req_vec_chunks;
struct virtchnl2_vector_chunks *vcs = &ac->vchunks;
int buf_size, err;
buf_size = struct_size(vcs, vchunks, le16_to_cpu(vcs->num_vchunks));
mutex_lock(&adapter->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_DEALLOC_VECTORS, buf_size,
(u8 *)vcs);
if (err)
goto rel_lock;
err = idpf_min_wait_for_event(adapter, NULL, IDPF_VC_DEALLOC_VECTORS,
IDPF_VC_DEALLOC_VECTORS_ERR);
if (err)
goto rel_lock;
kfree(adapter->req_vec_chunks);
adapter->req_vec_chunks = NULL;
rel_lock:
mutex_unlock(&adapter->vc_buf_lock);
return err;
}
/**
* idpf_get_max_vfs - Get max number of vfs supported
* @adapter: Driver specific private structure
*
* Returns max number of VFs
*/
static int idpf_get_max_vfs(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.max_sriov_vfs);
}
/**
* idpf_send_set_sriov_vfs_msg - Send virtchnl set sriov vfs message
* @adapter: Driver specific private structure
* @num_vfs: number of virtual functions to be created
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_set_sriov_vfs_msg(struct idpf_adapter *adapter, u16 num_vfs)
{
struct virtchnl2_sriov_vfs_info svi = { };
int err;
svi.num_vfs = cpu_to_le16(num_vfs);
mutex_lock(&adapter->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_SET_SRIOV_VFS,
sizeof(svi), (u8 *)&svi);
if (err)
goto rel_lock;
err = idpf_wait_for_event(adapter, NULL, IDPF_VC_SET_SRIOV_VFS,
IDPF_VC_SET_SRIOV_VFS_ERR);
rel_lock:
mutex_unlock(&adapter->vc_buf_lock);
return err;
}
/**
* idpf_send_get_stats_msg - Send virtchnl get statistics message
* @vport: vport to get stats for
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_get_stats_msg(struct idpf_vport *vport)
{
struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
struct rtnl_link_stats64 *netstats = &np->netstats;
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_vport_stats stats_msg = { };
struct virtchnl2_vport_stats *stats;
int err;
/* Don't send get_stats message if the link is down */
if (np->state <= __IDPF_VPORT_DOWN)
return 0;
stats_msg.vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_GET_STATS,
sizeof(struct virtchnl2_vport_stats),
(u8 *)&stats_msg);
if (err)
goto rel_lock;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_GET_STATS,
IDPF_VC_GET_STATS_ERR);
if (err)
goto rel_lock;
stats = (struct virtchnl2_vport_stats *)vport->vc_msg;
spin_lock_bh(&np->stats_lock);
netstats->rx_packets = le64_to_cpu(stats->rx_unicast) +
le64_to_cpu(stats->rx_multicast) +
le64_to_cpu(stats->rx_broadcast);
netstats->rx_bytes = le64_to_cpu(stats->rx_bytes);
netstats->rx_dropped = le64_to_cpu(stats->rx_discards);
netstats->rx_over_errors = le64_to_cpu(stats->rx_overflow_drop);
netstats->rx_length_errors = le64_to_cpu(stats->rx_invalid_frame_length);
netstats->tx_packets = le64_to_cpu(stats->tx_unicast) +
le64_to_cpu(stats->tx_multicast) +
le64_to_cpu(stats->tx_broadcast);
netstats->tx_bytes = le64_to_cpu(stats->tx_bytes);
netstats->tx_errors = le64_to_cpu(stats->tx_errors);
netstats->tx_dropped = le64_to_cpu(stats->tx_discards);
vport->port_stats.vport_stats = *stats;
spin_unlock_bh(&np->stats_lock);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
return err;
}
/**
* idpf_send_get_set_rss_lut_msg - Send virtchnl get or set rss lut message
* @vport: virtual port data structure
* @get: flag to set or get rss look up table
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_get_set_rss_lut_msg(struct idpf_vport *vport, bool get)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_rss_lut *recv_rl;
struct idpf_rss_data *rss_data;
struct virtchnl2_rss_lut *rl;
int buf_size, lut_buf_size;
int i, err;
rss_data = &adapter->vport_config[vport->idx]->user_config.rss_data;
buf_size = struct_size(rl, lut, rss_data->rss_lut_size);
rl = kzalloc(buf_size, GFP_KERNEL);
if (!rl)
return -ENOMEM;
rl->vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
if (!get) {
rl->lut_entries = cpu_to_le16(rss_data->rss_lut_size);
for (i = 0; i < rss_data->rss_lut_size; i++)
rl->lut[i] = cpu_to_le32(rss_data->rss_lut[i]);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_SET_RSS_LUT,
buf_size, (u8 *)rl);
if (err)
goto free_mem;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_SET_RSS_LUT,
IDPF_VC_SET_RSS_LUT_ERR);
goto free_mem;
}
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_GET_RSS_LUT,
buf_size, (u8 *)rl);
if (err)
goto free_mem;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_GET_RSS_LUT,
IDPF_VC_GET_RSS_LUT_ERR);
if (err)
goto free_mem;
recv_rl = (struct virtchnl2_rss_lut *)vport->vc_msg;
if (rss_data->rss_lut_size == le16_to_cpu(recv_rl->lut_entries))
goto do_memcpy;
rss_data->rss_lut_size = le16_to_cpu(recv_rl->lut_entries);
kfree(rss_data->rss_lut);
lut_buf_size = rss_data->rss_lut_size * sizeof(u32);
rss_data->rss_lut = kzalloc(lut_buf_size, GFP_KERNEL);
if (!rss_data->rss_lut) {
rss_data->rss_lut_size = 0;
err = -ENOMEM;
goto free_mem;
}
do_memcpy:
memcpy(rss_data->rss_lut, vport->vc_msg, rss_data->rss_lut_size);
free_mem:
mutex_unlock(&vport->vc_buf_lock);
kfree(rl);
return err;
}
/**
* idpf_send_get_set_rss_key_msg - Send virtchnl get or set rss key message
* @vport: virtual port data structure
* @get: flag to set or get rss look up table
*
* Returns 0 on success, negative on failure
*/
int idpf_send_get_set_rss_key_msg(struct idpf_vport *vport, bool get)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_rss_key *recv_rk;
struct idpf_rss_data *rss_data;
struct virtchnl2_rss_key *rk;
int i, buf_size, err;
rss_data = &adapter->vport_config[vport->idx]->user_config.rss_data;
buf_size = struct_size(rk, key_flex, rss_data->rss_key_size);
rk = kzalloc(buf_size, GFP_KERNEL);
if (!rk)
return -ENOMEM;
rk->vport_id = cpu_to_le32(vport->vport_id);
mutex_lock(&vport->vc_buf_lock);
if (get) {
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_GET_RSS_KEY,
buf_size, (u8 *)rk);
if (err)
goto error;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_GET_RSS_KEY,
IDPF_VC_GET_RSS_KEY_ERR);
if (err)
goto error;
recv_rk = (struct virtchnl2_rss_key *)vport->vc_msg;
if (rss_data->rss_key_size !=
le16_to_cpu(recv_rk->key_len)) {
rss_data->rss_key_size =
min_t(u16, NETDEV_RSS_KEY_LEN,
le16_to_cpu(recv_rk->key_len));
kfree(rss_data->rss_key);
rss_data->rss_key = kzalloc(rss_data->rss_key_size,
GFP_KERNEL);
if (!rss_data->rss_key) {
rss_data->rss_key_size = 0;
err = -ENOMEM;
goto error;
}
}
memcpy(rss_data->rss_key, recv_rk->key_flex,
rss_data->rss_key_size);
} else {
rk->key_len = cpu_to_le16(rss_data->rss_key_size);
for (i = 0; i < rss_data->rss_key_size; i++)
rk->key_flex[i] = rss_data->rss_key[i];
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_SET_RSS_KEY,
buf_size, (u8 *)rk);
if (err)
goto error;
err = idpf_wait_for_event(adapter, vport, IDPF_VC_SET_RSS_KEY,
IDPF_VC_SET_RSS_KEY_ERR);
}
error:
mutex_unlock(&vport->vc_buf_lock);
kfree(rk);
return err;
}
/**
* idpf_fill_ptype_lookup - Fill L3 specific fields in ptype lookup table
* @ptype: ptype lookup table
* @pstate: state machine for ptype lookup table
* @ipv4: ipv4 or ipv6
* @frag: fragmentation allowed
*
*/
static void idpf_fill_ptype_lookup(struct idpf_rx_ptype_decoded *ptype,
struct idpf_ptype_state *pstate,
bool ipv4, bool frag)
{
if (!pstate->outer_ip || !pstate->outer_frag) {
ptype->outer_ip = IDPF_RX_PTYPE_OUTER_IP;
pstate->outer_ip = true;
if (ipv4)
ptype->outer_ip_ver = IDPF_RX_PTYPE_OUTER_IPV4;
else
ptype->outer_ip_ver = IDPF_RX_PTYPE_OUTER_IPV6;
if (frag) {
ptype->outer_frag = IDPF_RX_PTYPE_FRAG;
pstate->outer_frag = true;
}
} else {
ptype->tunnel_type = IDPF_RX_PTYPE_TUNNEL_IP_IP;
pstate->tunnel_state = IDPF_PTYPE_TUNNEL_IP;
if (ipv4)
ptype->tunnel_end_prot =
IDPF_RX_PTYPE_TUNNEL_END_IPV4;
else
ptype->tunnel_end_prot =
IDPF_RX_PTYPE_TUNNEL_END_IPV6;
if (frag)
ptype->tunnel_end_frag = IDPF_RX_PTYPE_FRAG;
}
}
/**
* idpf_send_get_rx_ptype_msg - Send virtchnl for ptype info
* @vport: virtual port data structure
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_get_rx_ptype_msg(struct idpf_vport *vport)
{
struct idpf_rx_ptype_decoded *ptype_lkup = vport->rx_ptype_lkup;
struct virtchnl2_get_ptype_info get_ptype_info;
int max_ptype, ptypes_recvd = 0, ptype_offset;
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_get_ptype_info *ptype_info;
u16 next_ptype_id = 0;
int err = 0, i, j, k;
if (idpf_is_queue_model_split(vport->rxq_model))
max_ptype = IDPF_RX_MAX_PTYPE;
else
max_ptype = IDPF_RX_MAX_BASE_PTYPE;
memset(vport->rx_ptype_lkup, 0, sizeof(vport->rx_ptype_lkup));
ptype_info = kzalloc(IDPF_CTLQ_MAX_BUF_LEN, GFP_KERNEL);
if (!ptype_info)
return -ENOMEM;
mutex_lock(&adapter->vc_buf_lock);
while (next_ptype_id < max_ptype) {
get_ptype_info.start_ptype_id = cpu_to_le16(next_ptype_id);
if ((next_ptype_id + IDPF_RX_MAX_PTYPES_PER_BUF) > max_ptype)
get_ptype_info.num_ptypes =
cpu_to_le16(max_ptype - next_ptype_id);
else
get_ptype_info.num_ptypes =
cpu_to_le16(IDPF_RX_MAX_PTYPES_PER_BUF);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_GET_PTYPE_INFO,
sizeof(struct virtchnl2_get_ptype_info),
(u8 *)&get_ptype_info);
if (err)
goto vc_buf_unlock;
err = idpf_wait_for_event(adapter, NULL, IDPF_VC_GET_PTYPE_INFO,
IDPF_VC_GET_PTYPE_INFO_ERR);
if (err)
goto vc_buf_unlock;
memcpy(ptype_info, adapter->vc_msg, IDPF_CTLQ_MAX_BUF_LEN);
ptypes_recvd += le16_to_cpu(ptype_info->num_ptypes);
if (ptypes_recvd > max_ptype) {
err = -EINVAL;
goto vc_buf_unlock;
}
next_ptype_id = le16_to_cpu(get_ptype_info.start_ptype_id) +
le16_to_cpu(get_ptype_info.num_ptypes);
ptype_offset = IDPF_RX_PTYPE_HDR_SZ;
for (i = 0; i < le16_to_cpu(ptype_info->num_ptypes); i++) {
struct idpf_ptype_state pstate = { };
struct virtchnl2_ptype *ptype;
u16 id;
ptype = (struct virtchnl2_ptype *)
((u8 *)ptype_info + ptype_offset);
ptype_offset += IDPF_GET_PTYPE_SIZE(ptype);
if (ptype_offset > IDPF_CTLQ_MAX_BUF_LEN) {
err = -EINVAL;
goto vc_buf_unlock;
}
/* 0xFFFF indicates end of ptypes */
if (le16_to_cpu(ptype->ptype_id_10) ==
IDPF_INVALID_PTYPE_ID) {
err = 0;
goto vc_buf_unlock;
}
if (idpf_is_queue_model_split(vport->rxq_model))
k = le16_to_cpu(ptype->ptype_id_10);
else
k = ptype->ptype_id_8;
if (ptype->proto_id_count)
ptype_lkup[k].known = 1;
for (j = 0; j < ptype->proto_id_count; j++) {
id = le16_to_cpu(ptype->proto_id[j]);
switch (id) {
case VIRTCHNL2_PROTO_HDR_GRE:
if (pstate.tunnel_state ==
IDPF_PTYPE_TUNNEL_IP) {
ptype_lkup[k].tunnel_type =
IDPF_RX_PTYPE_TUNNEL_IP_GRENAT;
pstate.tunnel_state |=
IDPF_PTYPE_TUNNEL_IP_GRENAT;
}
break;
case VIRTCHNL2_PROTO_HDR_MAC:
ptype_lkup[k].outer_ip =
IDPF_RX_PTYPE_OUTER_L2;
if (pstate.tunnel_state ==
IDPF_TUN_IP_GRE) {
ptype_lkup[k].tunnel_type =
IDPF_RX_PTYPE_TUNNEL_IP_GRENAT_MAC;
pstate.tunnel_state |=
IDPF_PTYPE_TUNNEL_IP_GRENAT_MAC;
}
break;
case VIRTCHNL2_PROTO_HDR_IPV4:
idpf_fill_ptype_lookup(&ptype_lkup[k],
&pstate, true,
false);
break;
case VIRTCHNL2_PROTO_HDR_IPV6:
idpf_fill_ptype_lookup(&ptype_lkup[k],
&pstate, false,
false);
break;
case VIRTCHNL2_PROTO_HDR_IPV4_FRAG:
idpf_fill_ptype_lookup(&ptype_lkup[k],
&pstate, true,
true);
break;
case VIRTCHNL2_PROTO_HDR_IPV6_FRAG:
idpf_fill_ptype_lookup(&ptype_lkup[k],
&pstate, false,
true);
break;
case VIRTCHNL2_PROTO_HDR_UDP:
ptype_lkup[k].inner_prot =
IDPF_RX_PTYPE_INNER_PROT_UDP;
break;
case VIRTCHNL2_PROTO_HDR_TCP:
ptype_lkup[k].inner_prot =
IDPF_RX_PTYPE_INNER_PROT_TCP;
break;
case VIRTCHNL2_PROTO_HDR_SCTP:
ptype_lkup[k].inner_prot =
IDPF_RX_PTYPE_INNER_PROT_SCTP;
break;
case VIRTCHNL2_PROTO_HDR_ICMP:
ptype_lkup[k].inner_prot =
IDPF_RX_PTYPE_INNER_PROT_ICMP;
break;
case VIRTCHNL2_PROTO_HDR_PAY:
ptype_lkup[k].payload_layer =
IDPF_RX_PTYPE_PAYLOAD_LAYER_PAY2;
break;
case VIRTCHNL2_PROTO_HDR_ICMPV6:
case VIRTCHNL2_PROTO_HDR_IPV6_EH:
case VIRTCHNL2_PROTO_HDR_PRE_MAC:
case VIRTCHNL2_PROTO_HDR_POST_MAC:
case VIRTCHNL2_PROTO_HDR_ETHERTYPE:
case VIRTCHNL2_PROTO_HDR_SVLAN:
case VIRTCHNL2_PROTO_HDR_CVLAN:
case VIRTCHNL2_PROTO_HDR_MPLS:
case VIRTCHNL2_PROTO_HDR_MMPLS:
case VIRTCHNL2_PROTO_HDR_PTP:
case VIRTCHNL2_PROTO_HDR_CTRL:
case VIRTCHNL2_PROTO_HDR_LLDP:
case VIRTCHNL2_PROTO_HDR_ARP:
case VIRTCHNL2_PROTO_HDR_ECP:
case VIRTCHNL2_PROTO_HDR_EAPOL:
case VIRTCHNL2_PROTO_HDR_PPPOD:
case VIRTCHNL2_PROTO_HDR_PPPOE:
case VIRTCHNL2_PROTO_HDR_IGMP:
case VIRTCHNL2_PROTO_HDR_AH:
case VIRTCHNL2_PROTO_HDR_ESP:
case VIRTCHNL2_PROTO_HDR_IKE:
case VIRTCHNL2_PROTO_HDR_NATT_KEEP:
case VIRTCHNL2_PROTO_HDR_L2TPV2:
case VIRTCHNL2_PROTO_HDR_L2TPV2_CONTROL:
case VIRTCHNL2_PROTO_HDR_L2TPV3:
case VIRTCHNL2_PROTO_HDR_GTP:
case VIRTCHNL2_PROTO_HDR_GTP_EH:
case VIRTCHNL2_PROTO_HDR_GTPCV2:
case VIRTCHNL2_PROTO_HDR_GTPC_TEID:
case VIRTCHNL2_PROTO_HDR_GTPU:
case VIRTCHNL2_PROTO_HDR_GTPU_UL:
case VIRTCHNL2_PROTO_HDR_GTPU_DL:
case VIRTCHNL2_PROTO_HDR_ECPRI:
case VIRTCHNL2_PROTO_HDR_VRRP:
case VIRTCHNL2_PROTO_HDR_OSPF:
case VIRTCHNL2_PROTO_HDR_TUN:
case VIRTCHNL2_PROTO_HDR_NVGRE:
case VIRTCHNL2_PROTO_HDR_VXLAN:
case VIRTCHNL2_PROTO_HDR_VXLAN_GPE:
case VIRTCHNL2_PROTO_HDR_GENEVE:
case VIRTCHNL2_PROTO_HDR_NSH:
case VIRTCHNL2_PROTO_HDR_QUIC:
case VIRTCHNL2_PROTO_HDR_PFCP:
case VIRTCHNL2_PROTO_HDR_PFCP_NODE:
case VIRTCHNL2_PROTO_HDR_PFCP_SESSION:
case VIRTCHNL2_PROTO_HDR_RTP:
case VIRTCHNL2_PROTO_HDR_NO_PROTO:
break;
default:
break;
}
}
}
}
vc_buf_unlock:
mutex_unlock(&adapter->vc_buf_lock);
kfree(ptype_info);
return err;
}
/**
* idpf_send_ena_dis_loopback_msg - Send virtchnl enable/disable loopback
* message
* @vport: virtual port data structure
*
* Returns 0 on success, negative on failure.
*/
int idpf_send_ena_dis_loopback_msg(struct idpf_vport *vport)
{
struct virtchnl2_loopback loopback;
int err;
loopback.vport_id = cpu_to_le32(vport->vport_id);
loopback.enable = idpf_is_feature_ena(vport, NETIF_F_LOOPBACK);
mutex_lock(&vport->vc_buf_lock);
err = idpf_send_mb_msg(vport->adapter, VIRTCHNL2_OP_LOOPBACK,
sizeof(loopback), (u8 *)&loopback);
if (err)
goto rel_lock;
err = idpf_wait_for_event(vport->adapter, vport,
IDPF_VC_LOOPBACK_STATE,
IDPF_VC_LOOPBACK_STATE_ERR);
rel_lock:
mutex_unlock(&vport->vc_buf_lock);
return err;
}
/**
* idpf_find_ctlq - Given a type and id, find ctlq info
* @hw: hardware struct
* @type: type of ctrlq to find
* @id: ctlq id to find
*
* Returns pointer to found ctlq info struct, NULL otherwise.
*/
static struct idpf_ctlq_info *idpf_find_ctlq(struct idpf_hw *hw,
enum idpf_ctlq_type type, int id)
{
struct idpf_ctlq_info *cq, *tmp;
list_for_each_entry_safe(cq, tmp, &hw->cq_list_head, cq_list)
if (cq->q_id == id && cq->cq_type == type)
return cq;
return NULL;
}
/**
* idpf_init_dflt_mbx - Setup default mailbox parameters and make request
* @adapter: adapter info struct
*
* Returns 0 on success, negative otherwise
*/
int idpf_init_dflt_mbx(struct idpf_adapter *adapter)
{
struct idpf_ctlq_create_info ctlq_info[] = {
{
.type = IDPF_CTLQ_TYPE_MAILBOX_TX,
.id = IDPF_DFLT_MBX_ID,
.len = IDPF_DFLT_MBX_Q_LEN,
.buf_size = IDPF_CTLQ_MAX_BUF_LEN
},
{
.type = IDPF_CTLQ_TYPE_MAILBOX_RX,
.id = IDPF_DFLT_MBX_ID,
.len = IDPF_DFLT_MBX_Q_LEN,
.buf_size = IDPF_CTLQ_MAX_BUF_LEN
}
};
struct idpf_hw *hw = &adapter->hw;
int err;
adapter->dev_ops.reg_ops.ctlq_reg_init(ctlq_info);
err = idpf_ctlq_init(hw, IDPF_NUM_DFLT_MBX_Q, ctlq_info);
if (err)
return err;
hw->asq = idpf_find_ctlq(hw, IDPF_CTLQ_TYPE_MAILBOX_TX,
IDPF_DFLT_MBX_ID);
hw->arq = idpf_find_ctlq(hw, IDPF_CTLQ_TYPE_MAILBOX_RX,
IDPF_DFLT_MBX_ID);
if (!hw->asq || !hw->arq) {
idpf_ctlq_deinit(hw);
return -ENOENT;
}
adapter->state = __IDPF_STARTUP;
return 0;
}
/**
* idpf_deinit_dflt_mbx - Free up ctlqs setup
* @adapter: Driver specific private data structure
*/
void idpf_deinit_dflt_mbx(struct idpf_adapter *adapter)
{
if (adapter->hw.arq && adapter->hw.asq) {
idpf_mb_clean(adapter);
idpf_ctlq_deinit(&adapter->hw);
}
adapter->hw.arq = NULL;
adapter->hw.asq = NULL;
}
/**
* idpf_vport_params_buf_rel - Release memory for MailBox resources
* @adapter: Driver specific private data structure
*
* Will release memory to hold the vport parameters received on MailBox
*/
static void idpf_vport_params_buf_rel(struct idpf_adapter *adapter)
{
kfree(adapter->vport_params_recvd);
adapter->vport_params_recvd = NULL;
kfree(adapter->vport_params_reqd);
adapter->vport_params_reqd = NULL;
kfree(adapter->vport_ids);
adapter->vport_ids = NULL;
}
/**
* idpf_vport_params_buf_alloc - Allocate memory for MailBox resources
* @adapter: Driver specific private data structure
*
* Will alloc memory to hold the vport parameters received on MailBox
*/
static int idpf_vport_params_buf_alloc(struct idpf_adapter *adapter)
{
u16 num_max_vports = idpf_get_max_vports(adapter);
adapter->vport_params_reqd = kcalloc(num_max_vports,
sizeof(*adapter->vport_params_reqd),
GFP_KERNEL);
if (!adapter->vport_params_reqd)
return -ENOMEM;
adapter->vport_params_recvd = kcalloc(num_max_vports,
sizeof(*adapter->vport_params_recvd),
GFP_KERNEL);
if (!adapter->vport_params_recvd)
goto err_mem;
adapter->vport_ids = kcalloc(num_max_vports, sizeof(u32), GFP_KERNEL);
if (!adapter->vport_ids)
goto err_mem;
if (adapter->vport_config)
return 0;
adapter->vport_config = kcalloc(num_max_vports,
sizeof(*adapter->vport_config),
GFP_KERNEL);
if (!adapter->vport_config)
goto err_mem;
return 0;
err_mem:
idpf_vport_params_buf_rel(adapter);
return -ENOMEM;
}
/**
* idpf_vc_core_init - Initialize state machine and get driver specific
* resources
* @adapter: Driver specific private structure
*
* This function will initialize the state machine and request all necessary
* resources required by the device driver. Once the state machine is
* initialized, allocate memory to store vport specific information and also
* requests required interrupts.
*
* Returns 0 on success, -EAGAIN function will get called again,
* otherwise negative on failure.
*/
int idpf_vc_core_init(struct idpf_adapter *adapter)
{
int task_delay = 30;
u16 num_max_vports;
int err = 0;
while (adapter->state != __IDPF_INIT_SW) {
switch (adapter->state) {
case __IDPF_STARTUP:
if (idpf_send_ver_msg(adapter))
goto init_failed;
adapter->state = __IDPF_VER_CHECK;
goto restart;
case __IDPF_VER_CHECK:
err = idpf_recv_ver_msg(adapter);
if (err == -EIO) {
return err;
} else if (err == -EAGAIN) {
adapter->state = __IDPF_STARTUP;
goto restart;
} else if (err) {
goto init_failed;
}
if (idpf_send_get_caps_msg(adapter))
goto init_failed;
adapter->state = __IDPF_GET_CAPS;
goto restart;
case __IDPF_GET_CAPS:
if (idpf_recv_get_caps_msg(adapter))
goto init_failed;
adapter->state = __IDPF_INIT_SW;
break;
default:
dev_err(&adapter->pdev->dev, "Device is in bad state: %d\n",
adapter->state);
goto init_failed;
}
break;
restart:
/* Give enough time before proceeding further with
* state machine
*/
msleep(task_delay);
}
pci_sriov_set_totalvfs(adapter->pdev, idpf_get_max_vfs(adapter));
num_max_vports = idpf_get_max_vports(adapter);
adapter->max_vports = num_max_vports;
adapter->vports = kcalloc(num_max_vports, sizeof(*adapter->vports),
GFP_KERNEL);
if (!adapter->vports)
return -ENOMEM;
if (!adapter->netdevs) {
adapter->netdevs = kcalloc(num_max_vports,
sizeof(struct net_device *),
GFP_KERNEL);
if (!adapter->netdevs) {
err = -ENOMEM;
goto err_netdev_alloc;
}
}
err = idpf_vport_params_buf_alloc(adapter);
if (err) {
dev_err(&adapter->pdev->dev, "Failed to alloc vport params buffer: %d\n",
err);
goto err_netdev_alloc;
}
/* Start the mailbox task before requesting vectors. This will ensure
* vector information response from mailbox is handled
*/
queue_delayed_work(adapter->mbx_wq, &adapter->mbx_task, 0);
queue_delayed_work(adapter->serv_wq, &adapter->serv_task,
msecs_to_jiffies(5 * (adapter->pdev->devfn & 0x07)));
err = idpf_intr_req(adapter);
if (err) {
dev_err(&adapter->pdev->dev, "failed to enable interrupt vectors: %d\n",
err);
goto err_intr_req;
}
idpf_init_avail_queues(adapter);
/* Skew the delay for init tasks for each function based on fn number
* to prevent every function from making the same call simultaneously.
*/
queue_delayed_work(adapter->init_wq, &adapter->init_task,
msecs_to_jiffies(5 * (adapter->pdev->devfn & 0x07)));
goto no_err;
err_intr_req:
cancel_delayed_work_sync(&adapter->serv_task);
cancel_delayed_work_sync(&adapter->mbx_task);
idpf_vport_params_buf_rel(adapter);
err_netdev_alloc:
kfree(adapter->vports);
adapter->vports = NULL;
no_err:
return err;
init_failed:
/* Don't retry if we're trying to go down, just bail. */
if (test_bit(IDPF_REMOVE_IN_PROG, adapter->flags))
return err;
if (++adapter->mb_wait_count > IDPF_MB_MAX_ERR) {
dev_err(&adapter->pdev->dev, "Failed to establish mailbox communications with hardware\n");
return -EFAULT;
}
/* If it reached here, it is possible that mailbox queue initialization
* register writes might not have taken effect. Retry to initialize
* the mailbox again
*/
adapter->state = __IDPF_STARTUP;
idpf_deinit_dflt_mbx(adapter);
set_bit(IDPF_HR_DRV_LOAD, adapter->flags);
queue_delayed_work(adapter->vc_event_wq, &adapter->vc_event_task,
msecs_to_jiffies(task_delay));
return -EAGAIN;
}
/**
* idpf_vc_core_deinit - Device deinit routine
* @adapter: Driver specific private structure
*
*/
void idpf_vc_core_deinit(struct idpf_adapter *adapter)
{
int i;
idpf_deinit_task(adapter);
idpf_intr_rel(adapter);
/* Set all bits as we dont know on which vc_state the vhnl_wq is
* waiting on and wakeup the virtchnl workqueue even if it is waiting
* for the response as we are going down
*/
for (i = 0; i < IDPF_VC_NBITS; i++)
set_bit(i, adapter->vc_state);
wake_up(&adapter->vchnl_wq);
cancel_delayed_work_sync(&adapter->serv_task);
cancel_delayed_work_sync(&adapter->mbx_task);
idpf_vport_params_buf_rel(adapter);
/* Clear all the bits */
for (i = 0; i < IDPF_VC_NBITS; i++)
clear_bit(i, adapter->vc_state);
kfree(adapter->vports);
adapter->vports = NULL;
}
/**
* idpf_vport_alloc_vec_indexes - Get relative vector indexes
* @vport: virtual port data struct
*
* This function requests the vector information required for the vport and
* stores the vector indexes received from the 'global vector distribution'
* in the vport's queue vectors array.
*
* Return 0 on success, error on failure
*/
int idpf_vport_alloc_vec_indexes(struct idpf_vport *vport)
{
struct idpf_vector_info vec_info;
int num_alloc_vecs;
vec_info.num_curr_vecs = vport->num_q_vectors;
vec_info.num_req_vecs = max(vport->num_txq, vport->num_rxq);
vec_info.default_vport = vport->default_vport;
vec_info.index = vport->idx;
num_alloc_vecs = idpf_req_rel_vector_indexes(vport->adapter,
vport->q_vector_idxs,
&vec_info);
if (num_alloc_vecs <= 0) {
dev_err(&vport->adapter->pdev->dev, "Vector distribution failed: %d\n",
num_alloc_vecs);
return -EINVAL;
}
vport->num_q_vectors = num_alloc_vecs;
return 0;
}
/**
* idpf_vport_init - Initialize virtual port
* @vport: virtual port to be initialized
* @max_q: vport max queue info
*
* Will initialize vport with the info received through MB earlier
*/
void idpf_vport_init(struct idpf_vport *vport, struct idpf_vport_max_q *max_q)
{
struct idpf_adapter *adapter = vport->adapter;
struct virtchnl2_create_vport *vport_msg;
struct idpf_vport_config *vport_config;
u16 tx_itr[] = {2, 8, 64, 128, 256};
u16 rx_itr[] = {2, 8, 32, 96, 128};
struct idpf_rss_data *rss_data;
u16 idx = vport->idx;
vport_config = adapter->vport_config[idx];
rss_data = &vport_config->user_config.rss_data;
vport_msg = adapter->vport_params_recvd[idx];
vport_config->max_q.max_txq = max_q->max_txq;
vport_config->max_q.max_rxq = max_q->max_rxq;
vport_config->max_q.max_complq = max_q->max_complq;
vport_config->max_q.max_bufq = max_q->max_bufq;
vport->txq_model = le16_to_cpu(vport_msg->txq_model);
vport->rxq_model = le16_to_cpu(vport_msg->rxq_model);
vport->vport_type = le16_to_cpu(vport_msg->vport_type);
vport->vport_id = le32_to_cpu(vport_msg->vport_id);
rss_data->rss_key_size = min_t(u16, NETDEV_RSS_KEY_LEN,
le16_to_cpu(vport_msg->rss_key_size));
rss_data->rss_lut_size = le16_to_cpu(vport_msg->rss_lut_size);
ether_addr_copy(vport->default_mac_addr, vport_msg->default_mac_addr);
vport->max_mtu = le16_to_cpu(vport_msg->max_mtu) - IDPF_PACKET_HDR_PAD;
/* Initialize Tx and Rx profiles for Dynamic Interrupt Moderation */
memcpy(vport->rx_itr_profile, rx_itr, IDPF_DIM_PROFILE_SLOTS);
memcpy(vport->tx_itr_profile, tx_itr, IDPF_DIM_PROFILE_SLOTS);
idpf_vport_init_num_qs(vport, vport_msg);
idpf_vport_calc_num_q_desc(vport);
idpf_vport_calc_num_q_groups(vport);
idpf_vport_alloc_vec_indexes(vport);
vport->crc_enable = adapter->crc_enable;
}
/**
* idpf_get_vec_ids - Initialize vector id from Mailbox parameters
* @adapter: adapter structure to get the mailbox vector id
* @vecids: Array of vector ids
* @num_vecids: number of vector ids
* @chunks: vector ids received over mailbox
*
* Will initialize the mailbox vector id which is received from the
* get capabilities and data queue vector ids with ids received as
* mailbox parameters.
* Returns number of ids filled
*/
int idpf_get_vec_ids(struct idpf_adapter *adapter,
u16 *vecids, int num_vecids,
struct virtchnl2_vector_chunks *chunks)
{
u16 num_chunks = le16_to_cpu(chunks->num_vchunks);
int num_vecid_filled = 0;
int i, j;
vecids[num_vecid_filled] = adapter->mb_vector.v_idx;
num_vecid_filled++;
for (j = 0; j < num_chunks; j++) {
struct virtchnl2_vector_chunk *chunk;
u16 start_vecid, num_vec;
chunk = &chunks->vchunks[j];
num_vec = le16_to_cpu(chunk->num_vectors);
start_vecid = le16_to_cpu(chunk->start_vector_id);
for (i = 0; i < num_vec; i++) {
if ((num_vecid_filled + i) < num_vecids) {
vecids[num_vecid_filled + i] = start_vecid;
start_vecid++;
} else {
break;
}
}
num_vecid_filled = num_vecid_filled + i;
}
return num_vecid_filled;
}
/**
* idpf_vport_get_queue_ids - Initialize queue id from Mailbox parameters
* @qids: Array of queue ids
* @num_qids: number of queue ids
* @q_type: queue model
* @chunks: queue ids received over mailbox
*
* Will initialize all queue ids with ids received as mailbox parameters
* Returns number of ids filled
*/
static int idpf_vport_get_queue_ids(u32 *qids, int num_qids, u16 q_type,
struct virtchnl2_queue_reg_chunks *chunks)
{
u16 num_chunks = le16_to_cpu(chunks->num_chunks);
u32 num_q_id_filled = 0, i;
u32 start_q_id, num_q;
while (num_chunks--) {
struct virtchnl2_queue_reg_chunk *chunk;
chunk = &chunks->chunks[num_chunks];
if (le32_to_cpu(chunk->type) != q_type)
continue;
num_q = le32_to_cpu(chunk->num_queues);
start_q_id = le32_to_cpu(chunk->start_queue_id);
for (i = 0; i < num_q; i++) {
if ((num_q_id_filled + i) < num_qids) {
qids[num_q_id_filled + i] = start_q_id;
start_q_id++;
} else {
break;
}
}
num_q_id_filled = num_q_id_filled + i;
}
return num_q_id_filled;
}
/**
* __idpf_vport_queue_ids_init - Initialize queue ids from Mailbox parameters
* @vport: virtual port for which the queues ids are initialized
* @qids: queue ids
* @num_qids: number of queue ids
* @q_type: type of queue
*
* Will initialize all queue ids with ids received as mailbox
* parameters. Returns number of queue ids initialized.
*/
static int __idpf_vport_queue_ids_init(struct idpf_vport *vport,
const u32 *qids,
int num_qids,
u32 q_type)
{
struct idpf_queue *q;
int i, j, k = 0;
switch (q_type) {
case VIRTCHNL2_QUEUE_TYPE_TX:
for (i = 0; i < vport->num_txq_grp; i++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
for (j = 0; j < tx_qgrp->num_txq && k < num_qids; j++, k++) {
tx_qgrp->txqs[j]->q_id = qids[k];
tx_qgrp->txqs[j]->q_type =
VIRTCHNL2_QUEUE_TYPE_TX;
}
}
break;
case VIRTCHNL2_QUEUE_TYPE_RX:
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u16 num_rxq;
if (idpf_is_queue_model_split(vport->rxq_model))
num_rxq = rx_qgrp->splitq.num_rxq_sets;
else
num_rxq = rx_qgrp->singleq.num_rxq;
for (j = 0; j < num_rxq && k < num_qids; j++, k++) {
if (idpf_is_queue_model_split(vport->rxq_model))
q = &rx_qgrp->splitq.rxq_sets[j]->rxq;
else
q = rx_qgrp->singleq.rxqs[j];
q->q_id = qids[k];
q->q_type = VIRTCHNL2_QUEUE_TYPE_RX;
}
}
break;
case VIRTCHNL2_QUEUE_TYPE_TX_COMPLETION:
for (i = 0; i < vport->num_txq_grp && k < num_qids; i++, k++) {
struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
tx_qgrp->complq->q_id = qids[k];
tx_qgrp->complq->q_type =
VIRTCHNL2_QUEUE_TYPE_TX_COMPLETION;
}
break;
case VIRTCHNL2_QUEUE_TYPE_RX_BUFFER:
for (i = 0; i < vport->num_rxq_grp; i++) {
struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
u8 num_bufqs = vport->num_bufqs_per_qgrp;
for (j = 0; j < num_bufqs && k < num_qids; j++, k++) {
q = &rx_qgrp->splitq.bufq_sets[j].bufq;
q->q_id = qids[k];
q->q_type = VIRTCHNL2_QUEUE_TYPE_RX_BUFFER;
}
}
break;
default:
break;
}
return k;
}
/**
* idpf_vport_queue_ids_init - Initialize queue ids from Mailbox parameters
* @vport: virtual port for which the queues ids are initialized
*
* Will initialize all queue ids with ids received as mailbox parameters.
* Returns 0 on success, negative if all the queues are not initialized.
*/
int idpf_vport_queue_ids_init(struct idpf_vport *vport)
{
struct virtchnl2_create_vport *vport_params;
struct virtchnl2_queue_reg_chunks *chunks;
struct idpf_vport_config *vport_config;
u16 vport_idx = vport->idx;
int num_ids, err = 0;
u16 q_type;
u32 *qids;
vport_config = vport->adapter->vport_config[vport_idx];
if (vport_config->req_qs_chunks) {
struct virtchnl2_add_queues *vc_aq =
(struct virtchnl2_add_queues *)vport_config->req_qs_chunks;
chunks = &vc_aq->chunks;
} else {
vport_params = vport->adapter->vport_params_recvd[vport_idx];
chunks = &vport_params->chunks;
}
qids = kcalloc(IDPF_MAX_QIDS, sizeof(u32), GFP_KERNEL);
if (!qids)
return -ENOMEM;
num_ids = idpf_vport_get_queue_ids(qids, IDPF_MAX_QIDS,
VIRTCHNL2_QUEUE_TYPE_TX,
chunks);
if (num_ids < vport->num_txq) {
err = -EINVAL;
goto mem_rel;
}
num_ids = __idpf_vport_queue_ids_init(vport, qids, num_ids,
VIRTCHNL2_QUEUE_TYPE_TX);
if (num_ids < vport->num_txq) {
err = -EINVAL;
goto mem_rel;
}
num_ids = idpf_vport_get_queue_ids(qids, IDPF_MAX_QIDS,
VIRTCHNL2_QUEUE_TYPE_RX,
chunks);
if (num_ids < vport->num_rxq) {
err = -EINVAL;
goto mem_rel;
}
num_ids = __idpf_vport_queue_ids_init(vport, qids, num_ids,
VIRTCHNL2_QUEUE_TYPE_RX);
if (num_ids < vport->num_rxq) {
err = -EINVAL;
goto mem_rel;
}
if (!idpf_is_queue_model_split(vport->txq_model))
goto check_rxq;
q_type = VIRTCHNL2_QUEUE_TYPE_TX_COMPLETION;
num_ids = idpf_vport_get_queue_ids(qids, IDPF_MAX_QIDS, q_type, chunks);
if (num_ids < vport->num_complq) {
err = -EINVAL;
goto mem_rel;
}
num_ids = __idpf_vport_queue_ids_init(vport, qids, num_ids, q_type);
if (num_ids < vport->num_complq) {
err = -EINVAL;
goto mem_rel;
}
check_rxq:
if (!idpf_is_queue_model_split(vport->rxq_model))
goto mem_rel;
q_type = VIRTCHNL2_QUEUE_TYPE_RX_BUFFER;
num_ids = idpf_vport_get_queue_ids(qids, IDPF_MAX_QIDS, q_type, chunks);
if (num_ids < vport->num_bufq) {
err = -EINVAL;
goto mem_rel;
}
num_ids = __idpf_vport_queue_ids_init(vport, qids, num_ids, q_type);
if (num_ids < vport->num_bufq)
err = -EINVAL;
mem_rel:
kfree(qids);
return err;
}
/**
* idpf_vport_adjust_qs - Adjust to new requested queues
* @vport: virtual port data struct
*
* Renegotiate queues. Returns 0 on success, negative on failure.
*/
int idpf_vport_adjust_qs(struct idpf_vport *vport)
{
struct virtchnl2_create_vport vport_msg;
int err;
vport_msg.txq_model = cpu_to_le16(vport->txq_model);
vport_msg.rxq_model = cpu_to_le16(vport->rxq_model);
err = idpf_vport_calc_total_qs(vport->adapter, vport->idx, &vport_msg,
NULL);
if (err)
return err;
idpf_vport_init_num_qs(vport, &vport_msg);
idpf_vport_calc_num_q_groups(vport);
return 0;
}
/**
* idpf_is_capability_ena - Default implementation of capability checking
* @adapter: Private data struct
* @all: all or one flag
* @field: caps field to check for flags
* @flag: flag to check
*
* Return true if all capabilities are supported, false otherwise
*/
bool idpf_is_capability_ena(struct idpf_adapter *adapter, bool all,
enum idpf_cap_field field, u64 flag)
{
u8 *caps = (u8 *)&adapter->caps;
u32 *cap_field;
if (!caps)
return false;
if (field == IDPF_BASE_CAPS)
return false;
cap_field = (u32 *)(caps + field);
if (all)
return (*cap_field & flag) == flag;
else
return !!(*cap_field & flag);
}
/**
* idpf_get_vport_id: Get vport id
* @vport: virtual port structure
*
* Return vport id from the adapter persistent data
*/
u32 idpf_get_vport_id(struct idpf_vport *vport)
{
struct virtchnl2_create_vport *vport_msg;
vport_msg = vport->adapter->vport_params_recvd[vport->idx];
return le32_to_cpu(vport_msg->vport_id);
}
/**
* idpf_add_del_mac_filters - Add/del mac filters
* @vport: Virtual port data structure
* @np: Netdev private structure
* @add: Add or delete flag
* @async: Don't wait for return message
*
* Returns 0 on success, error on failure.
**/
int idpf_add_del_mac_filters(struct idpf_vport *vport,
struct idpf_netdev_priv *np,
bool add, bool async)
{
struct virtchnl2_mac_addr_list *ma_list = NULL;
struct idpf_adapter *adapter = np->adapter;
struct idpf_vport_config *vport_config;
enum idpf_vport_config_flags mac_flag;
struct pci_dev *pdev = adapter->pdev;
enum idpf_vport_vc_state vc, vc_err;
struct virtchnl2_mac_addr *mac_addr;
struct idpf_mac_filter *f, *tmp;
u32 num_msgs, total_filters = 0;
int i = 0, k, err = 0;
u32 vop;
vport_config = adapter->vport_config[np->vport_idx];
spin_lock_bh(&vport_config->mac_filter_list_lock);
/* Find the number of newly added filters */
list_for_each_entry(f, &vport_config->user_config.mac_filter_list,
list) {
if (add && f->add)
total_filters++;
else if (!add && f->remove)
total_filters++;
}
if (!total_filters) {
spin_unlock_bh(&vport_config->mac_filter_list_lock);
return 0;
}
/* Fill all the new filters into virtchannel message */
mac_addr = kcalloc(total_filters, sizeof(struct virtchnl2_mac_addr),
GFP_ATOMIC);
if (!mac_addr) {
err = -ENOMEM;
spin_unlock_bh(&vport_config->mac_filter_list_lock);
goto error;
}
list_for_each_entry_safe(f, tmp, &vport_config->user_config.mac_filter_list,
list) {
if (add && f->add) {
ether_addr_copy(mac_addr[i].addr, f->macaddr);
i++;
f->add = false;
if (i == total_filters)
break;
}
if (!add && f->remove) {
ether_addr_copy(mac_addr[i].addr, f->macaddr);
i++;
f->remove = false;
if (i == total_filters)
break;
}
}
spin_unlock_bh(&vport_config->mac_filter_list_lock);
if (add) {
vop = VIRTCHNL2_OP_ADD_MAC_ADDR;
vc = IDPF_VC_ADD_MAC_ADDR;
vc_err = IDPF_VC_ADD_MAC_ADDR_ERR;
mac_flag = IDPF_VPORT_ADD_MAC_REQ;
} else {
vop = VIRTCHNL2_OP_DEL_MAC_ADDR;
vc = IDPF_VC_DEL_MAC_ADDR;
vc_err = IDPF_VC_DEL_MAC_ADDR_ERR;
mac_flag = IDPF_VPORT_DEL_MAC_REQ;
}
/* Chunk up the filters into multiple messages to avoid
* sending a control queue message buffer that is too large
*/
num_msgs = DIV_ROUND_UP(total_filters, IDPF_NUM_FILTERS_PER_MSG);
if (!async)
mutex_lock(&vport->vc_buf_lock);
for (i = 0, k = 0; i < num_msgs; i++) {
u32 entries_size, buf_size, num_entries;
num_entries = min_t(u32, total_filters,
IDPF_NUM_FILTERS_PER_MSG);
entries_size = sizeof(struct virtchnl2_mac_addr) * num_entries;
buf_size = struct_size(ma_list, mac_addr_list, num_entries);
if (!ma_list || num_entries != IDPF_NUM_FILTERS_PER_MSG) {
kfree(ma_list);
ma_list = kzalloc(buf_size, GFP_ATOMIC);
if (!ma_list) {
err = -ENOMEM;
goto list_prep_error;
}
} else {
memset(ma_list, 0, buf_size);
}
ma_list->vport_id = cpu_to_le32(np->vport_id);
ma_list->num_mac_addr = cpu_to_le16(num_entries);
memcpy(ma_list->mac_addr_list, &mac_addr[k], entries_size);
if (async)
set_bit(mac_flag, vport_config->flags);
err = idpf_send_mb_msg(adapter, vop, buf_size, (u8 *)ma_list);
if (err)
goto mbx_error;
if (!async) {
err = idpf_wait_for_event(adapter, vport, vc, vc_err);
if (err)
goto mbx_error;
}
k += num_entries;
total_filters -= num_entries;
}
mbx_error:
if (!async)
mutex_unlock(&vport->vc_buf_lock);
kfree(ma_list);
list_prep_error:
kfree(mac_addr);
error:
if (err)
dev_err(&pdev->dev, "Failed to add or del mac filters %d", err);
return err;
}
/**
* idpf_set_promiscuous - set promiscuous and send message to mailbox
* @adapter: Driver specific private structure
* @config_data: Vport specific config data
* @vport_id: Vport identifier
*
* Request to enable promiscuous mode for the vport. Message is sent
* asynchronously and won't wait for response. Returns 0 on success, negative
* on failure;
*/
int idpf_set_promiscuous(struct idpf_adapter *adapter,
struct idpf_vport_user_config_data *config_data,
u32 vport_id)
{
struct virtchnl2_promisc_info vpi;
u16 flags = 0;
int err;
if (test_bit(__IDPF_PROMISC_UC, config_data->user_flags))
flags |= VIRTCHNL2_UNICAST_PROMISC;
if (test_bit(__IDPF_PROMISC_MC, config_data->user_flags))
flags |= VIRTCHNL2_MULTICAST_PROMISC;
vpi.vport_id = cpu_to_le32(vport_id);
vpi.flags = cpu_to_le16(flags);
err = idpf_send_mb_msg(adapter, VIRTCHNL2_OP_CONFIG_PROMISCUOUS_MODE,
sizeof(struct virtchnl2_promisc_info),
(u8 *)&vpi);
return err;
}