From: Andrew Rybchenko <arybchenko@solarflare.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH v2 12/17] net/sfc: avoid panic in the case of MCDI timeout
Date: Thu, 17 Sep 2020 07:34:38 +0100 [thread overview]
Message-ID: <1600324483-23153-13-git-send-email-arybchenko@solarflare.com> (raw)
In-Reply-To: <1600324483-23153-1-git-send-email-arybchenko@solarflare.com>
Implement dummy MCDI timeout handling which simply rejects
further MCDI requests.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
---
drivers/net/sfc/sfc_mcdi.c | 15 +++++++++++++--
drivers/net/sfc/sfc_mcdi.h | 1 +
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/sfc_mcdi.c b/drivers/net/sfc/sfc_mcdi.c
index 8f446e8bc8..928a08c0a2 100644
--- a/drivers/net/sfc/sfc_mcdi.c
+++ b/drivers/net/sfc/sfc_mcdi.c
@@ -33,6 +33,9 @@
RTE_FMT_TAIL(__VA_ARGS__,))); \
} while (0)
+#define sfc_efx_mcdi_crit(mcdi, ...) \
+ sfc_efx_mcdi_log(mcdi, RTE_LOG_CRIT, __VA_ARGS__)
+
#define sfc_efx_mcdi_err(mcdi, ...) \
sfc_efx_mcdi_log(mcdi, RTE_LOG_ERR, __VA_ARGS__)
@@ -55,7 +58,9 @@ sfc_efx_mcdi_timeout(struct sfc_adapter *sa)
sfc_efx_mcdi_warn(mcdi, "MC TIMEOUT");
- sfc_panic(sa, "MCDI timeout handling is not implemented\n");
+ mcdi->state = SFC_EFX_MCDI_DEAD;
+ sfc_efx_mcdi_crit(mcdi,
+ "MCDI timeout handling is not implemented - NIC is unusable");
}
static inline boolean_t
@@ -124,6 +129,11 @@ sfc_efx_mcdi_execute(void *arg, efx_mcdi_req_t *emrp)
struct sfc_efx_mcdi *mcdi = &sa->mcdi;
uint32_t proxy_handle;
+ if (mcdi->state == SFC_EFX_MCDI_DEAD) {
+ emrp->emr_rc = ENOEXEC;
+ return;
+ }
+
rte_spinlock_lock(&mcdi->lock);
SFC_ASSERT(mcdi->state == SFC_EFX_MCDI_INITIALIZED);
@@ -325,7 +335,8 @@ sfc_efx_mcdi_fini(struct sfc_adapter *sa, struct sfc_efx_mcdi *mcdi)
rte_spinlock_lock(&mcdi->lock);
- SFC_ASSERT(mcdi->state == SFC_EFX_MCDI_INITIALIZED);
+ SFC_ASSERT(mcdi->state == SFC_EFX_MCDI_INITIALIZED ||
+ mcdi->state == SFC_EFX_MCDI_DEAD);
mcdi->state = SFC_EFX_MCDI_UNINITIALIZED;
sfc_efx_mcdi_info(mcdi, "fini MCDI");
diff --git a/drivers/net/sfc/sfc_mcdi.h b/drivers/net/sfc/sfc_mcdi.h
index e2105364ad..b93b268e32 100644
--- a/drivers/net/sfc/sfc_mcdi.h
+++ b/drivers/net/sfc/sfc_mcdi.h
@@ -27,6 +27,7 @@ enum sfc_efx_mcdi_state {
SFC_EFX_MCDI_INITIALIZED,
SFC_EFX_MCDI_BUSY,
SFC_EFX_MCDI_COMPLETED,
+ SFC_EFX_MCDI_DEAD,
SFC_EFX_MCDI_NSTATES
};
--
2.17.1
next prev parent reply other threads:[~2020-09-17 6:36 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 9:14 [dpdk-dev] [PATCH 00/14] net/sfc: factor out common driver library Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 01/14] net/iavf: downgrade error log Andrew Rybchenko
2020-09-08 9:26 ` Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 01/14] net/sfc: include header with debug helpers directly Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 02/14] net/sfc: introduce common driver library Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 03/14] net/sfc: add dedicated header file with MCDI interface Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 04/14] net/sfc: move MCDI helper interface to dedicated namespace Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 05/14] net/sfc: make MCDI logging helper macros local Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 06/14] net/sfc: start to make MCDI helpers interface shareable Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 07/14] net/sfc: use own logging helper macros Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 08/14] net/sfc: avoid usage of NIC pointer from adapter context Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 09/14] net/sfc: avoid panic in the case of MCDI timeout Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 10/14] net/sfc: add MCDI callbacks to allocate/free DMA memory Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 11/14] net/sfc: add MCDI callback to schedule restart Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 12/14] net/sfc: add MCDI callback to poll management event queue Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 13/14] net/sfc: use MCDI control structure as libefx ops context Andrew Rybchenko
2020-09-08 9:14 ` [dpdk-dev] [PATCH 14/14] net/sfc: move MCDI helpers to common driver Andrew Rybchenko
2020-09-09 14:32 ` [dpdk-dev] [PATCH 00/14] net/sfc: factor out common driver library Ferruh Yigit
2020-09-17 6:21 ` Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 00/17] " Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 01/17] net/sfc/base: add missing extern storage-class specifiers Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 02/17] net/sfc/base: decorate libefx API functions Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 03/17] net/sfc/base: decorate libefx internal extern functions Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 04/17] net/sfc: include header with debug helpers directly Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 05/17] net/sfc: introduce common driver library Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 06/17] net/sfc: add dedicated header file with MCDI interface Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 07/17] net/sfc: move MCDI helper interface to dedicated namespace Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 08/17] net/sfc: make MCDI logging helper macros local Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 09/17] net/sfc: start to make MCDI helpers interface shareable Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 10/17] net/sfc: use own logging helper macros Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 11/17] net/sfc: avoid usage of NIC pointer from adapter context Andrew Rybchenko
2020-09-17 6:34 ` Andrew Rybchenko [this message]
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 13/17] net/sfc: add MCDI callbacks to allocate/free DMA memory Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 14/17] net/sfc: add MCDI callback to schedule restart Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 15/17] net/sfc: add MCDI callback to poll management event queue Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 16/17] net/sfc: use MCDI control structure as libefx ops context Andrew Rybchenko
2020-09-17 6:34 ` [dpdk-dev] [PATCH v2 17/17] net/sfc: move MCDI helpers to common driver Andrew Rybchenko
2020-09-21 22:38 ` [dpdk-dev] [PATCH v2 00/17] net/sfc: factor out common driver library Ferruh Yigit
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