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path: root/drivers/net/ethernet/qlogic/qed/qed_vf.c
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Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_vf.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_vf.c249
1 files changed, 182 insertions, 67 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index 9b780b31b15c..abf5bf11f865 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -46,6 +46,17 @@ static void *qed_vf_pf_prep(struct qed_hwfn *p_hwfn, u16 type, u16 length)
return p_tlv;
}
+static void qed_vf_pf_req_end(struct qed_hwfn *p_hwfn, int req_status)
+{
+ union pfvf_tlvs *resp = p_hwfn->vf_iov_info->pf2vf_reply;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_IOV,
+ "VF request status = 0x%x, PF reply status = 0x%x\n",
+ req_status, resp->default_resp.hdr.status);
+
+ mutex_unlock(&(p_hwfn->vf_iov_info->mutex));
+}
+
static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
{
union vfpf_tlvs *p_req = p_hwfn->vf_iov_info->vf2pf_request;
@@ -103,16 +114,12 @@ static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
"VF <-- PF Timeout [Type %d]\n",
p_req->first_tlv.tl.type);
rc = -EBUSY;
- goto exit;
} else {
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"PF response: %d [Type %d]\n",
*done, p_req->first_tlv.tl.type);
}
-exit:
- mutex_unlock(&(p_hwfn->vf_iov_info->mutex));
-
return rc;
}
@@ -191,6 +198,9 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
DP_VERBOSE(p_hwfn,
QED_MSG_IOV, "attempting to acquire resources\n");
+ /* Clear response buffer, as this might be a re-send */
+ memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
+
/* send acquire request */
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
@@ -205,9 +215,12 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
/* PF agrees to allocate our resources */
if (!(resp->pfdev_info.capabilities &
PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE)) {
- DP_INFO(p_hwfn,
- "PF is using old incompatible driver; Either downgrade driver or request provider to update hypervisor version\n");
- return -EINVAL;
+ /* It's possible legacy PF mistakenly accepted;
+ * but we don't care - simply mark it as
+ * legacy and continue.
+ */
+ req->vfdev_info.capabilities |=
+ VFPF_ACQUIRE_CAP_PRE_FP_HSI;
}
DP_VERBOSE(p_hwfn, QED_MSG_IOV, "resources acquired\n");
resources_acquired = true;
@@ -215,27 +228,55 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
attempts < VF_ACQUIRE_THRESH) {
qed_vf_pf_acquire_reduce_resc(p_hwfn, p_resc,
&resp->resc);
+ } else if (resp->hdr.status == PFVF_STATUS_NOT_SUPPORTED) {
+ if (pfdev_info->major_fp_hsi &&
+ (pfdev_info->major_fp_hsi != ETH_HSI_VER_MAJOR)) {
+ DP_NOTICE(p_hwfn,
+ "PF uses an incompatible fastpath HSI %02x.%02x [VF requires %02x.%02x]. Please change to a VF driver using %02x.xx.\n",
+ pfdev_info->major_fp_hsi,
+ pfdev_info->minor_fp_hsi,
+ ETH_HSI_VER_MAJOR,
+ ETH_HSI_VER_MINOR,
+ pfdev_info->major_fp_hsi);
+ rc = -EINVAL;
+ goto exit;
+ }
- /* Clear response buffer */
- memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
- } else if ((resp->hdr.status == PFVF_STATUS_NOT_SUPPORTED) &&
- pfdev_info->major_fp_hsi &&
- (pfdev_info->major_fp_hsi != ETH_HSI_VER_MAJOR)) {
- DP_NOTICE(p_hwfn,
- "PF uses an incompatible fastpath HSI %02x.%02x [VF requires %02x.%02x]. Please change to a VF driver using %02x.xx.\n",
- pfdev_info->major_fp_hsi,
- pfdev_info->minor_fp_hsi,
- ETH_HSI_VER_MAJOR,
- ETH_HSI_VER_MINOR, pfdev_info->major_fp_hsi);
- return -EINVAL;
+ if (!pfdev_info->major_fp_hsi) {
+ if (req->vfdev_info.capabilities &
+ VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
+ DP_NOTICE(p_hwfn,
+ "PF uses very old drivers. Please change to a VF driver using no later than 8.8.x.x.\n");
+ rc = -EINVAL;
+ goto exit;
+ } else {
+ DP_INFO(p_hwfn,
+ "PF is old - try re-acquire to see if it supports FW-version override\n");
+ req->vfdev_info.capabilities |=
+ VFPF_ACQUIRE_CAP_PRE_FP_HSI;
+ continue;
+ }
+ }
+
+ /* If PF/VF are using same Major, PF must have had
+ * it's reasons. Simply fail.
+ */
+ DP_NOTICE(p_hwfn, "PF rejected acquisition by VF\n");
+ rc = -EINVAL;
+ goto exit;
} else {
DP_ERR(p_hwfn,
"PF returned error %d to VF acquisition request\n",
resp->hdr.status);
- return -EAGAIN;
+ rc = -EAGAIN;
+ goto exit;
}
}
+ /* Mark the PF as legacy, if needed */
+ if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_PRE_FP_HSI)
+ p_iov->b_pre_fp_hsi = true;
+
/* Update bulletin board size with response from PF */
p_iov->bulletin.size = resp->bulletin_size;
@@ -253,14 +294,18 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
}
}
- if (ETH_HSI_VER_MINOR &&
+ if (!p_iov->b_pre_fp_hsi &&
+ ETH_HSI_VER_MINOR &&
(resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) {
DP_INFO(p_hwfn,
"PF is using older fastpath HSI; %02x.%02x is configured\n",
ETH_HSI_VER_MAJOR, resp->pfdev_info.minor_fp_hsi);
}
- return 0;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
+
+ return rc;
}
int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
@@ -286,31 +331,23 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
/* Allocate vf sriov info */
p_iov = kzalloc(sizeof(*p_iov), GFP_KERNEL);
- if (!p_iov) {
- DP_NOTICE(p_hwfn, "Failed to allocate `struct qed_sriov'\n");
+ if (!p_iov)
return -ENOMEM;
- }
/* Allocate vf2pf msg */
p_iov->vf2pf_request = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union vfpf_tlvs),
&p_iov->vf2pf_request_phys,
GFP_KERNEL);
- if (!p_iov->vf2pf_request) {
- DP_NOTICE(p_hwfn,
- "Failed to allocate `vf2pf_request' DMA memory\n");
+ if (!p_iov->vf2pf_request)
goto free_p_iov;
- }
p_iov->pf2vf_reply = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union pfvf_tlvs),
&p_iov->pf2vf_reply_phys,
GFP_KERNEL);
- if (!p_iov->pf2vf_reply) {
- DP_NOTICE(p_hwfn,
- "Failed to allocate `pf2vf_reply' DMA memory\n");
+ if (!p_iov->pf2vf_reply)
goto free_vf2pf_request;
- }
DP_VERBOSE(p_hwfn,
QED_MSG_IOV,
@@ -347,6 +384,9 @@ free_p_iov:
return -ENOMEM;
}
+#define TSTORM_QZONE_START PXP_VF_BAR0_START_SDM_ZONE_A
+#define MSTORM_QZONE_START(dev) (TSTORM_QZONE_START + \
+ (TSTORM_QZONE_SIZE * NUM_OF_L2_QUEUES(dev)))
int qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
u8 rx_qid,
@@ -374,6 +414,21 @@ int qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
req->bd_max_bytes = bd_max_bytes;
req->stat_id = -1;
+ /* If PF is legacy, we'll need to calculate producers ourselves
+ * as well as clean them.
+ */
+ if (pp_prod && p_iov->b_pre_fp_hsi) {
+ u8 hw_qid = p_iov->acquire_resp.resc.hw_qid[rx_qid];
+ u32 init_prod_val = 0;
+
+ *pp_prod = (u8 __iomem *)p_hwfn->regview +
+ MSTORM_QZONE_START(p_hwfn->cdev) +
+ hw_qid * MSTORM_QZONE_SIZE;
+
+ /* Init the rcq, rx bd and rx sge (if valid) producers to 0 */
+ __internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
+ (u32 *)(&init_prod_val));
+ }
/* add list termination tlv */
qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
@@ -381,13 +436,15 @@ int qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
resp = &p_iov->pf2vf_reply->queue_start;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
/* Learn the address of the producer from the response */
- if (pp_prod) {
+ if (pp_prod && !p_iov->b_pre_fp_hsi) {
u32 init_prod_val = 0;
*pp_prod = (u8 __iomem *)p_hwfn->regview + resp->offset;
@@ -399,6 +456,8 @@ int qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
__internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
(u32 *)&init_prod_val);
}
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -424,10 +483,15 @@ int qed_vf_pf_rxq_stop(struct qed_hwfn *p_hwfn, u16 rx_qid, bool cqe_completion)
resp = &p_iov->pf2vf_reply->default_resp;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
+
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -470,13 +534,27 @@ int qed_vf_pf_txq_start(struct qed_hwfn *p_hwfn,
}
if (pp_doorbell) {
- *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells + resp->offset;
+ /* Modern PFs provide the actual offsets, while legacy
+ * provided only the queue id.
+ */
+ if (!p_iov->b_pre_fp_hsi) {
+ *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells +
+ resp->offset;
+ } else {
+ u8 cid = p_iov->acquire_resp.resc.cid[tx_queue_id];
+ u32 db_addr;
+
+ db_addr = qed_db_addr_vf(cid, DQ_DEMS_LEGACY);
+ *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells +
+ db_addr;
+ }
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"Txq[0x%02x]: doorbell at %p [offset 0x%08x]\n",
tx_queue_id, *pp_doorbell, resp->offset);
}
exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -501,10 +579,15 @@ int qed_vf_pf_txq_stop(struct qed_hwfn *p_hwfn, u16 tx_qid)
resp = &p_iov->pf2vf_reply->default_resp;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
+
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -543,10 +626,15 @@ int qed_vf_pf_vport_start(struct qed_hwfn *p_hwfn,
resp = &p_iov->pf2vf_reply->default_resp;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
+
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -567,10 +655,15 @@ int qed_vf_pf_vport_stop(struct qed_hwfn *p_hwfn)
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
+
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -770,13 +863,18 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, resp_size);
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
qed_vf_handle_vp_update_tlvs_resp(p_hwfn, p_params);
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
+
return rc;
}
@@ -797,14 +895,19 @@ int qed_vf_pf_reset(struct qed_hwfn *p_hwfn)
resp = &p_iov->pf2vf_reply->default_resp;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EAGAIN;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EAGAIN;
+ goto exit;
+ }
p_hwfn->b_int_enabled = 0;
- return 0;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
+
+ return rc;
}
int qed_vf_pf_release(struct qed_hwfn *p_hwfn)
@@ -828,6 +931,8 @@ int qed_vf_pf_release(struct qed_hwfn *p_hwfn)
if (!rc && resp->hdr.status != PFVF_STATUS_SUCCESS)
rc = -EAGAIN;
+ qed_vf_pf_req_end(p_hwfn, rc);
+
p_hwfn->b_int_enabled = 0;
if (p_iov->vf2pf_request)
@@ -896,12 +1001,17 @@ int qed_vf_pf_filter_ucast(struct qed_hwfn *p_hwfn,
resp = &p_iov->pf2vf_reply->default_resp;
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EAGAIN;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EAGAIN;
+ goto exit;
+ }
- return 0;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
+
+ return rc;
}
int qed_vf_pf_int_cleanup(struct qed_hwfn *p_hwfn)
@@ -920,12 +1030,17 @@ int qed_vf_pf_int_cleanup(struct qed_hwfn *p_hwfn)
rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
if (rc)
- return rc;
+ goto exit;
- if (resp->hdr.status != PFVF_STATUS_SUCCESS)
- return -EINVAL;
+ if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto exit;
+ }
- return 0;
+exit:
+ qed_vf_pf_req_end(p_hwfn, rc);
+
+ return rc;
}
u16 qed_vf_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)
@@ -1071,8 +1186,8 @@ bool qed_vf_check_mac(struct qed_hwfn *p_hwfn, u8 *mac)
return false;
}
-bool qed_vf_bulletin_get_forced_mac(struct qed_hwfn *hwfn,
- u8 *dst_mac, u8 *p_is_forced)
+static bool qed_vf_bulletin_get_forced_mac(struct qed_hwfn *hwfn,
+ u8 *dst_mac, u8 *p_is_forced)
{
struct qed_bulletin_content *bulletin;
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-27 05:57:30 +0300