From: Alexander Lobakin <alobakin@marvell.com>
Date: Tue, 21 Jul 2020 17:41:43 +0300
Subject: qed: suppress false-positives interrupt error messages on HW init
Patch-mainline: v5.8-rc7
Git-commit: eb61c2d69903e977ffa2b80b1da9d1f758cf228d
References: bsc#1136460 jsc#SLE-4691 bsc#1136461 jsc#SLE-4692
It was found that qed_pglueb_rbc_attn_handler() can produce a lot of
false-positive error detections on driver load/reload (especially after
crashes/recoveries) and spam the kernel log:
[ 4.958275] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d00ff0
[ 2079.146764] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2116.374631] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2135.250564] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[...]
Reduce the logging level of two false-positive prone error messages from
notice to verbose on initialization (only) to not mix it with real error
attentions while debugging.
Fixes: 666db4862f2d ("qed: Revise load sequence to avoid PCI errors")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/qlogic/qed/qed_dev.c | 2 -
drivers/net/ethernet/qlogic/qed/qed_int.c | 50 +++++++++++++++++-------------
drivers/net/ethernet/qlogic/qed/qed_int.h | 4 +-
3 files changed, 32 insertions(+), 24 deletions(-)
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -3092,7 +3092,7 @@ int qed_hw_init(struct qed_dev *cdev, st
}
/* Log and clear previous pglue_b errors if such exist */
- qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt);
+ qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt, true);
/* Enable the PF's internal FID_enable in the PXP */
rc = qed_pglueb_set_pfid_enable(p_hwfn, p_hwfn->p_main_ptt,
--- a/drivers/net/ethernet/qlogic/qed/qed_int.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.c
@@ -256,9 +256,10 @@ out:
#define PGLUE_ATTENTION_ZLR_VALID (1 << 25)
#define PGLUE_ATTENTION_ILT_VALID (1 << 23)
-int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
- struct qed_ptt *p_ptt)
+int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ bool hw_init)
{
+ char msg[256];
u32 tmp;
tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_WR_DETAILS2);
@@ -272,22 +273,23 @@ int qed_pglueb_rbc_attn_handler(struct q
details = qed_rd(p_hwfn, p_ptt,
PGLUE_B_REG_TX_ERR_WR_DETAILS);
- DP_NOTICE(p_hwfn,
- "Illegal write by chip to [%08x:%08x] blocked.\n"
- "Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n"
- "Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]\n",
- addr_hi, addr_lo, details,
- (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID),
- (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID),
- GET_FIELD(details,
- PGLUE_ATTENTION_DETAILS_VF_VALID) ? 1 : 0,
- tmp,
- GET_FIELD(tmp,
- PGLUE_ATTENTION_DETAILS2_WAS_ERR) ? 1 : 0,
- GET_FIELD(tmp,
- PGLUE_ATTENTION_DETAILS2_BME) ? 1 : 0,
- GET_FIELD(tmp,
- PGLUE_ATTENTION_DETAILS2_FID_EN) ? 1 : 0);
+ snprintf(msg, sizeof(msg),
+ "Illegal write by chip to [%08x:%08x] blocked.\n"
+ "Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n"
+ "Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]",
+ addr_hi, addr_lo, details,
+ (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID),
+ (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID),
+ !!GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VF_VALID),
+ tmp,
+ !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_WAS_ERR),
+ !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_BME),
+ !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_FID_EN));
+
+ if (hw_init)
+ DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "%s\n", msg);
+ else
+ DP_NOTICE(p_hwfn, "%s\n", msg);
}
tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_RD_DETAILS2);
@@ -320,8 +322,14 @@ int qed_pglueb_rbc_attn_handler(struct q
}
tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_WR_DETAILS_ICPL);
- if (tmp & PGLUE_ATTENTION_ICPL_VALID)
- DP_NOTICE(p_hwfn, "ICPL error - %08x\n", tmp);
+ if (tmp & PGLUE_ATTENTION_ICPL_VALID) {
+ snprintf(msg, sizeof(msg), "ICPL error - %08x", tmp);
+
+ if (hw_init)
+ DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "%s\n", msg);
+ else
+ DP_NOTICE(p_hwfn, "%s\n", msg);
+ }
tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_ZLR_ERR_DETAILS);
if (tmp & PGLUE_ATTENTION_ZLR_VALID) {
@@ -360,7 +368,7 @@ int qed_pglueb_rbc_attn_handler(struct q
static int qed_pglueb_rbc_attn_cb(struct qed_hwfn *p_hwfn)
{
- return qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_dpc_ptt);
+ return qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_dpc_ptt, false);
}
#define QED_DORQ_ATTENTION_REASON_MASK (0xfffff)
--- a/drivers/net/ethernet/qlogic/qed/qed_int.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.h
@@ -431,7 +431,7 @@ int qed_int_set_timer_res(struct qed_hwf
#define QED_MAPPING_MEMORY_SIZE(dev) (NUM_OF_SBS(dev))
-int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
- struct qed_ptt *p_ptt);
+int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ bool hw_init);
#endif