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IB/hfi1: Modify logging frequency of DCC errors 

Use rate-limit state to limit number of messages logged
to kernel message buffer for DCC errors. Add new macro
dd_dev_info_ratelimited for that propose. Replace all
dd_dev_info calls in handle_dcc_err function with
rate-limited version.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jakub Byczkowski 2017-02-08 05:27:55 -08:00 committed by Doug Ledford
parent f9215b5e53
commit c27aad00d1
2 changed files with 15 additions and 9 deletions
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20
drivers/infiniband/hw/hfi1/chip.c
View File

@ -7827,7 +7827,8 @@ static void handle_dcc_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
}
/* just report this */
dd_dev_info(dd, "DCC Error: fmconfig error: %s\n", extra);
dd_dev_info_ratelimited(dd, "DCC Error: fmconfig error: %s\n",
extra);
reg &= ~DCC_ERR_FLG_FMCONFIG_ERR_SMASK;
}
@ -7878,34 +7879,35 @@ static void handle_dcc_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
}
/* just report this */
dd_dev_info(dd, "DCC Error: PortRcv error: %s\n", extra);
dd_dev_info(dd, " hdr0 0x%llx, hdr1 0x%llx\n",
hdr0, hdr1);
dd_dev_info_ratelimited(dd, "DCC Error: PortRcv error: %s\n"
" hdr0 0x%llx, hdr1 0x%llx\n",
extra, hdr0, hdr1);
reg &= ~DCC_ERR_FLG_RCVPORT_ERR_SMASK;
}
if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK) {
/* informative only */
dd_dev_info(dd, "8051 access to LCB blocked\n");
dd_dev_info_ratelimited(dd, "8051 access to LCB blocked\n");
reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK;
}
if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK) {
/* informative only */
dd_dev_info(dd, "host access to LCB blocked\n");
dd_dev_info_ratelimited(dd, "host access to LCB blocked\n");
reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK;
}
/* report any remaining errors */
if (reg)
dd_dev_info(dd, "DCC Error: %s\n",
dcc_err_string(buf, sizeof(buf), reg));
dd_dev_info_ratelimited(dd, "DCC Error: %s\n",
dcc_err_string(buf, sizeof(buf), reg));
if (lcl_reason == 0)
lcl_reason = OPA_LINKDOWN_REASON_UNKNOWN;
if (do_bounce) {
dd_dev_info(dd, "%s: PortErrorAction bounce\n", __func__);
dd_dev_info_ratelimited(dd, "%s: PortErrorAction bounce\n",
__func__);
set_link_down_reason(ppd, lcl_reason, 0, lcl_reason);
queue_work(ppd->hfi1_wq, &ppd->link_bounce_work);
}

4
drivers/infiniband/hw/hfi1/hfi.h
View File

@ -1942,6 +1942,10 @@ static inline u64 hfi1_pkt_base_sdma_integrity(struct hfi1_devdata *dd)
dev_info(&(dd)->pcidev->dev, "%s: " fmt, \
get_unit_name((dd)->unit), ##__VA_ARGS__)
#define dd_dev_info_ratelimited(dd, fmt, ...) \
dev_info_ratelimited(&(dd)->pcidev->dev, "%s: " fmt, \
get_unit_name((dd)->unit), ##__VA_ARGS__)
#define dd_dev_dbg(dd, fmt, ...) \
dev_dbg(&(dd)->pcidev->dev, "%s: " fmt, \
get_unit_name((dd)->unit), ##__VA_ARGS__)