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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.c130
1 files changed, 62 insertions, 68 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index b6cccf44bf40..0e265ed1f501 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -1,33 +1,7 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/* QLogic qed NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and /or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * Copyright (c) 2019-2020 Marvell International Ltd.
*/
#include <linux/crc32.h>
@@ -53,7 +27,7 @@ static void *qed_vf_pf_prep(struct qed_hwfn *p_hwfn, u16 type, u16 length)
"preparing to send 0x%04x tlv over vf pf channel\n",
type);
- /* Reset Requst offset */
+ /* Reset Request offset */
p_iov->offset = (u8 *)p_iov->vf2pf_request;
/* Clear mailbox - both request and reply */
@@ -81,21 +55,23 @@ static void qed_vf_pf_req_end(struct qed_hwfn *p_hwfn, int req_status)
mutex_unlock(&(p_hwfn->vf_iov_info->mutex));
}
-static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
+#define QED_VF_CHANNEL_USLEEP_ITERATIONS 90
+#define QED_VF_CHANNEL_USLEEP_DELAY 100
+#define QED_VF_CHANNEL_MSLEEP_ITERATIONS 10
+#define QED_VF_CHANNEL_MSLEEP_DELAY 25
+
+static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done)
{
union vfpf_tlvs *p_req = p_hwfn->vf_iov_info->vf2pf_request;
struct ustorm_trigger_vf_zone trigger;
struct ustorm_vf_zone *zone_data;
- int rc = 0, time = 100;
+ int iter, rc = 0;
zone_data = (struct ustorm_vf_zone *)PXP_VF_BAR0_START_USDM_ZONE_B;
/* output tlvs list */
qed_dp_tlv_list(p_hwfn, p_req);
- /* need to add the END TLV to the message size */
- resp_size += sizeof(struct channel_list_end_tlv);
-
/* Send TLVs over HW channel */
memset(&trigger, 0, sizeof(struct ustorm_trigger_vf_zone));
trigger.vf_pf_msg_valid = 1;
@@ -126,11 +102,19 @@ static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
REG_WR(p_hwfn, (uintptr_t)&zone_data->trigger, *((u32 *)&trigger));
/* When PF would be done with the response, it would write back to the
- * `done' address. Poll until then.
+ * `done' address from a coherent DMA zone. Poll until then.
*/
- while ((!*done) && time) {
- msleep(25);
- time--;
+
+ iter = QED_VF_CHANNEL_USLEEP_ITERATIONS;
+ while (!*done && iter--) {
+ udelay(QED_VF_CHANNEL_USLEEP_DELAY);
+ dma_rmb();
+ }
+
+ iter = QED_VF_CHANNEL_MSLEEP_ITERATIONS;
+ while (!*done && iter--) {
+ msleep(QED_VF_CHANNEL_MSLEEP_DELAY);
+ dma_rmb();
}
if (!*done) {
@@ -185,7 +169,7 @@ static int _qed_vf_pf_release(struct qed_hwfn *p_hwfn, bool b_final)
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (!rc && resp->hdr.status != PFVF_STATUS_SUCCESS)
rc = -EAGAIN;
@@ -231,7 +215,7 @@ static void qed_vf_pf_acquire_reduce_resc(struct qed_hwfn *p_hwfn,
{
DP_VERBOSE(p_hwfn,
QED_MSG_IOV,
- "PF unwilling to fullill resource request: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x] cids [%02x/%02x]. Try PF recommended amount\n",
+ "PF unwilling to fulfill resource request: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x] cids [%02x/%02x]. Try PF recommended amount\n",
p_req->num_rxqs,
p_resp->num_rxqs,
p_req->num_rxqs,
@@ -261,6 +245,7 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
struct pfvf_acquire_resp_tlv *resp = &p_iov->pf2vf_reply->acquire_resp;
struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
struct vf_pf_resc_request *p_resc;
+ u8 retry_cnt = VF_ACQUIRE_THRESH;
bool resources_acquired = false;
struct vfpf_acquire_tlv *req;
int rc = 0, attempts = 0;
@@ -313,7 +298,16 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
/* send acquire request */
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
+
+ /* Re-try acquire in case of vf-pf hw channel timeout */
+ if (retry_cnt && rc == -EBUSY) {
+ DP_VERBOSE(p_hwfn, QED_MSG_IOV,
+ "VF retrying to acquire due to VPC timeout\n");
+ retry_cnt--;
+ continue;
+ }
+
if (rc)
goto exit;
@@ -447,7 +441,7 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
u32 reg;
int rc;
- /* Set number of hwfns - might be overriden once leading hwfn learns
+ /* Set number of hwfns - might be overridden once leading hwfn learns
* actual configuration from PF.
*/
if (IS_LEAD_HWFN(p_hwfn))
@@ -507,7 +501,7 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
QED_MSG_IOV,
"VF's Request mailbox [%p virt 0x%llx phys], Response mailbox [%p virt 0x%llx phys]\n",
p_iov->vf2pf_request,
- (u64) p_iov->vf2pf_request_phys,
+ (u64)p_iov->vf2pf_request_phys,
p_iov->pf2vf_reply, (u64)p_iov->pf2vf_reply_phys);
/* Allocate Bulletin board */
@@ -516,6 +510,9 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
p_iov->bulletin.size,
&p_iov->bulletin.phys,
GFP_KERNEL);
+ if (!p_iov->bulletin.p_virt)
+ goto free_pf2vf_reply;
+
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
p_iov->bulletin.p_virt,
@@ -555,6 +552,10 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
return rc;
+free_pf2vf_reply:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(union pfvf_tlvs),
+ p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
free_vf2pf_request:
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union vfpf_tlvs),
@@ -564,6 +565,7 @@ 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)))
@@ -700,7 +702,7 @@ int qed_vf_pf_tunnel_param_update(struct qed_hwfn *p_hwfn,
sizeof(struct channel_list_end_tlv));
p_resp = &p_iov->pf2vf_reply->tunn_param_resp;
- rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status, sizeof(*p_resp));
+ rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status);
if (rc)
goto exit;
@@ -767,7 +769,7 @@ qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->queue_start;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -817,7 +819,7 @@ int qed_vf_pf_rxq_stop(struct qed_hwfn *p_hwfn,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -862,7 +864,7 @@ qed_vf_pf_txq_start(struct qed_hwfn *p_hwfn,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->queue_start;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -913,7 +915,7 @@ int qed_vf_pf_txq_stop(struct qed_hwfn *p_hwfn, struct qed_queue_cid *p_cid)
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -963,7 +965,7 @@ int qed_vf_pf_vport_start(struct qed_hwfn *p_hwfn,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -992,7 +994,7 @@ int qed_vf_pf_vport_stop(struct qed_hwfn *p_hwfn)
qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1070,12 +1072,10 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
struct vfpf_vport_update_tlv *req;
struct pfvf_def_resp_tlv *resp;
u8 update_rx, update_tx;
- u32 resp_size = 0;
u16 size, tlv;
int rc;
resp = &p_iov->pf2vf_reply->default_resp;
- resp_size = sizeof(*resp);
update_rx = p_params->update_vport_active_rx_flg;
update_tx = p_params->update_vport_active_tx_flg;
@@ -1091,7 +1091,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
p_act_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_VPORT_UPDATE_ACTIVATE,
size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
if (update_rx) {
p_act_tlv->update_rx = update_rx;
@@ -1111,7 +1110,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
p_tx_switch_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
tlv, size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
p_tx_switch_tlv->tx_switching = p_params->tx_switching_flg;
}
@@ -1122,7 +1120,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
size = sizeof(struct vfpf_vport_update_mcast_bin_tlv);
p_mcast_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_VPORT_UPDATE_MCAST, size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
memcpy(p_mcast_tlv->bins, p_params->bins,
sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
@@ -1137,7 +1134,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
size = sizeof(struct vfpf_vport_update_accept_param_tlv);
p_accept_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
if (update_rx) {
p_accept_tlv->update_rx_mode = update_rx;
@@ -1161,7 +1157,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
p_rss_tlv = qed_add_tlv(p_hwfn,
&p_iov->offset,
CHANNEL_TLV_VPORT_UPDATE_RSS, size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
if (rss_params->update_rss_config)
p_rss_tlv->update_rss_flags |=
@@ -1198,7 +1193,6 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
p_any_vlan_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
- resp_size += sizeof(struct pfvf_def_resp_tlv);
p_any_vlan_tlv->accept_any_vlan = p_params->accept_any_vlan;
p_any_vlan_tlv->update_accept_any_vlan_flg =
p_params->update_accept_any_vlan_flg;
@@ -1208,7 +1202,7 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, resp_size);
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1240,7 +1234,7 @@ int qed_vf_pf_reset(struct qed_hwfn *p_hwfn)
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1288,8 +1282,8 @@ int qed_vf_pf_filter_ucast(struct qed_hwfn *p_hwfn,
/* clear mailbox and prep first tlv */
req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_UCAST_FILTER, sizeof(*req));
- req->opcode = (u8) p_ucast->opcode;
- req->type = (u8) p_ucast->type;
+ req->opcode = (u8)p_ucast->opcode;
+ req->type = (u8)p_ucast->type;
memcpy(req->mac, p_ucast->mac, ETH_ALEN);
req->vlan = p_ucast->vlan;
@@ -1298,7 +1292,7 @@ int qed_vf_pf_filter_ucast(struct qed_hwfn *p_hwfn,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1327,7 +1321,7 @@ int qed_vf_pf_int_cleanup(struct qed_hwfn *p_hwfn)
qed_add_tlv(p_hwfn, &p_iov->offset,
CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1359,7 +1353,7 @@ int qed_vf_pf_get_coalesce(struct qed_hwfn *p_hwfn,
sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->read_coal_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
@@ -1375,7 +1369,7 @@ exit:
int
qed_vf_pf_bulletin_update_mac(struct qed_hwfn *p_hwfn,
- u8 *p_mac)
+ const u8 *p_mac)
{
struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
struct vfpf_bulletin_update_mac_tlv *p_req;
@@ -1397,7 +1391,7 @@ qed_vf_pf_bulletin_update_mac(struct qed_hwfn *p_hwfn,
sizeof(struct channel_list_end_tlv));
p_resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status, sizeof(*p_resp));
+ rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status);
qed_vf_pf_req_end(p_hwfn, rc);
return rc;
}
@@ -1428,7 +1422,7 @@ qed_vf_pf_set_coalesce(struct qed_hwfn *p_hwfn,
sizeof(struct channel_list_end_tlv));
resp = &p_iov->pf2vf_reply->default_resp;
- rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+ rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status);
if (rc)
goto exit;
generated by cgit (git 2.34.1) at 2025-12-25 19:01:55 +0000