From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: dev@dpdk.org
Cc: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>,
Somnath Kotur <somnath.kotur@broadcom.com>
Subject: [PATCH v2 12/14] net/bnxt: retry HWRM ver get if the command fails
Date: Sat, 9 Dec 2023 17:24:53 -0800 [thread overview]
Message-ID: <20231210012455.20229-13-ajit.khaparde@broadcom.com> (raw)
In-Reply-To: <20231210012455.20229-1-ajit.khaparde@broadcom.com>
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Retry HWRM ver get if the command timesout because of PCI FLR.
When the PCI driver issues an FLR during device initialization,
the firmware may have to block the PXP target traffic till the FLR
is complete.
HWRM_VER_GET command issued during that window may time out.
So retry the command again in such a scenario.
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
---
drivers/net/bnxt/bnxt.h | 1 +
drivers/net/bnxt/bnxt_ethdev.c | 12 +++++++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index f7a60eb9a1..7aed4c3da3 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -879,6 +879,7 @@ struct bnxt {
/* default command timeout value of 500ms */
#define DFLT_HWRM_CMD_TIMEOUT 500000
+#define PCI_FUNC_RESET_WAIT_TIMEOUT 1500000
/* short command timeout value of 50ms */
#define SHORT_HWRM_CMD_TIMEOUT 50000
/* default HWRM request timeout value */
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 6282f16a7d..8aca3c6fba 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -5441,6 +5441,7 @@ static int bnxt_map_hcomm_fw_status_reg(struct bnxt *bp)
static int bnxt_get_config(struct bnxt *bp)
{
uint16_t mtu;
+ int timeout;
int rc = 0;
bp->fw_cap = 0;
@@ -5449,8 +5450,17 @@ static int bnxt_get_config(struct bnxt *bp)
if (rc)
return rc;
- rc = bnxt_hwrm_ver_get(bp, DFLT_HWRM_CMD_TIMEOUT);
+ timeout = BNXT_CHIP_P7(bp) ?
+ PCI_FUNC_RESET_WAIT_TIMEOUT :
+ DFLT_HWRM_CMD_TIMEOUT;
+try_again:
+ rc = bnxt_hwrm_ver_get(bp, timeout);
if (rc) {
+ if (rc == -ETIMEDOUT && timeout == PCI_FUNC_RESET_WAIT_TIMEOUT) {
+ bp->flags &= ~BNXT_FLAG_FW_TIMEDOUT;
+ timeout = DFLT_HWRM_CMD_TIMEOUT;
+ goto try_again;
+ }
bnxt_check_fw_status(bp);
return rc;
}
--
2.39.2 (Apple Git-143)
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next prev parent reply other threads:[~2023-12-10 1:33 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-10 1:24 [PATCH v2 00/14] support new 5760X P7 devices Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 01/14] net/bnxt: refactor epoch setting Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 02/14] net/bnxt: update HWRM API Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 03/14] net/bnxt: log a message when multicast promisc mode changes Ajit Khaparde
2023-12-10 17:56 ` Stephen Hemminger
2023-12-10 22:58 ` Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 04/14] net/bnxt: use the correct COS queue for Tx Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 05/14] net/bnxt: refactor mem zone allocation Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 06/14] net/bnxt: add support for p7 device family Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 07/14] net/bnxt: refactor code to support P7 devices Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 08/14] net/bnxt: fix array overflow Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 09/14] net/bnxt: add support for backing store v2 Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 10/14] net/bnxt: refactor the ulp initialization Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 11/14] net/bnxt: modify sending new HWRM commands to firmware Ajit Khaparde
2023-12-10 1:24 ` Ajit Khaparde [this message]
2023-12-10 1:24 ` [PATCH v2 13/14] net/bnxt: cap ring resources for P7 devices Ajit Khaparde
2023-12-10 1:24 ` [PATCH v2 14/14] net/bnxt: add support for v3 Rx completion Ajit Khaparde
2023-12-13 5:33 ` [PATCH v2 00/14] support new 5760X P7 devices Ajit Khaparde
2023-12-13 7:57 ` David Marchand
2023-12-13 14:49 ` Ajit Khaparde
2023-12-13 19:09 ` Ajit Khaparde
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