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Message-Id: <17186a827de1b2bed6cd610ce70f73d86ea6cf53.1507795407.git.rahul.lakkireddy@chelsio.com>
Date: Thu, 12 Oct 2017 13:54:41 +0530
From: Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, ganeshgr@...lsio.com, nirranjan@...lsio.com,
indranil@...lsio.com,
Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
Subject: [PATCH net-next 4/8] cxgb4: collect firmware mbox and device log dump
Collect firmware mbox and device logs before collecting the rest of
the hardware dumps to snap the firmware state before the mailbox logs
are updated by other hardware dumps.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h | 6 ++
drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h | 2 +
drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c | 84 +++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h | 6 ++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c | 9 +++
5 files changed, 107 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
index 71a426dd22f5..2b717e700bbc 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
@@ -26,4 +26,10 @@ struct card_mem {
u16 size_edc1;
u16 mem_flag;
};
+
+struct cudbg_mbox_log {
+ struct mbox_cmd entry;
+ u32 hi[MBOX_LEN / 8];
+ u32 lo[MBOX_LEN / 8];
+};
#endif /* __CUDBG_ENTITY_H__ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
index e45690fd0932..89c47e4c5e82 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
@@ -28,8 +28,10 @@
enum cudbg_dbg_entity_type {
CUDBG_REG_DUMP = 1,
+ CUDBG_DEV_LOG = 2,
CUDBG_EDC0 = 18,
CUDBG_EDC1 = 19,
+ CUDBG_MBOX_LOG = 66,
CUDBG_MAX_ENTITY = 70,
};
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
index b0a747a6fbb2..b9039562e5d4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
@@ -90,6 +90,45 @@ int collect_reg_dump(struct cudbg_init *pdbg_init,
return rc;
}
+int collect_fw_devlog(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err)
+{
+ struct adapter *padap = pdbg_init->adap;
+ struct cudbg_buffer temp_buff = { 0 };
+ struct devlog_params *dparams;
+ int rc = 0;
+
+ rc = t4_init_devlog_params(padap);
+ if (rc < 0) {
+ cudbg_err->sys_err = rc;
+ return rc;
+ }
+
+ dparams = &padap->params.devlog;
+ rc = get_cudbg_buff(dbg_buff, dparams->size, &temp_buff);
+ if (rc)
+ return rc;
+
+ /* Collect FW devlog */
+ if (dparams->start != 0) {
+ spin_lock(&padap->win0_lock);
+ rc = t4_memory_rw(padap, padap->params.drv_memwin,
+ dparams->memtype, dparams->start,
+ dparams->size,
+ (__be32 *)(char *)temp_buff.data,
+ 1);
+ spin_unlock(&padap->win0_lock);
+ if (rc) {
+ cudbg_err->sys_err = rc;
+ put_cudbg_buff(&temp_buff, dbg_buff);
+ return rc;
+ }
+ }
+ write_and_release_buff(&temp_buff, dbg_buff);
+ return rc;
+}
+
static int read_fw_mem(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff, u8 mem_type,
unsigned long tot_len, struct cudbg_error *cudbg_err)
@@ -209,3 +248,48 @@ int collect_edc1_meminfo(struct cudbg_init *pdbg_init,
{
return collect_mem_region(pdbg_init, dbg_buff, cudbg_err, MEM_EDC1);
}
+
+int collect_mbox_log(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err)
+{
+ struct adapter *padap = pdbg_init->adap;
+ struct cudbg_mbox_log *mboxlog = NULL;
+ struct cudbg_buffer temp_buff = { 0 };
+ struct mbox_cmd_log *log = NULL;
+ struct mbox_cmd *entry;
+ unsigned int entry_idx;
+ u16 mbox_cmds;
+ int i, k, rc;
+ u64 flit;
+ u32 size;
+
+ log = padap->mbox_log;
+ mbox_cmds = padap->mbox_log->size;
+ size = sizeof(struct cudbg_mbox_log) * mbox_cmds;
+ rc = get_cudbg_buff(dbg_buff, size, &temp_buff);
+ if (rc)
+ return rc;
+
+ mboxlog = (struct cudbg_mbox_log *)temp_buff.data;
+ for (k = 0; k < mbox_cmds; k++) {
+ entry_idx = log->cursor + k;
+ if (entry_idx >= log->size)
+ entry_idx -= log->size;
+
+ entry = mbox_cmd_log_entry(log, entry_idx);
+ /* skip over unused entries */
+ if (entry->timestamp == 0)
+ continue;
+
+ memcpy(&mboxlog->entry, entry, sizeof(struct mbox_cmd));
+ for (i = 0; i < MBOX_LEN / 8; i++) {
+ flit = entry->cmd[i];
+ mboxlog->hi[i] = (u32)(flit >> 32);
+ mboxlog->lo[i] = (u32)flit;
+ }
+ mboxlog++;
+ }
+ write_and_release_buff(&temp_buff, dbg_buff);
+ return rc;
+}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
index 04d66807c153..4a3e522a26ed 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
@@ -21,12 +21,18 @@
int collect_reg_dump(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
+int collect_fw_devlog(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err);
int collect_edc0_meminfo(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int collect_edc1_meminfo(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
+int collect_mbox_log(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err);
struct cudbg_entity_hdr *get_entity_hdr(void *outbuf, int i);
void align_debug_buffer(struct cudbg_buffer *dbg_buff,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
index cd8599083a69..337593afe60b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
@@ -18,6 +18,7 @@
#include "t4_regs.h"
#include "cxgb4.h"
#include "cxgb4_cudbg.h"
+#include "cudbg_entity.h"
static const struct cudbg_collect_entity collect_mem_dump[] = {
{ CUDBG_EDC0, collect_edc0_meminfo },
@@ -25,6 +26,8 @@ static const struct cudbg_collect_entity collect_mem_dump[] = {
};
static const struct cudbg_collect_entity collect_hw_dump[] = {
+ { CUDBG_MBOX_LOG, collect_mbox_log },
+ { CUDBG_DEV_LOG, collect_fw_devlog },
{ CUDBG_REG_DUMP, collect_reg_dump },
};
@@ -46,6 +49,9 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
break;
}
break;
+ case CUDBG_DEV_LOG:
+ len = adap->params.devlog.size;
+ break;
case CUDBG_EDC0:
value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
if (value & EDRAM0_ENABLE_F) {
@@ -62,6 +68,9 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
}
len = mbytes_to_bytes(len);
break;
+ case CUDBG_MBOX_LOG:
+ len = sizeof(struct cudbg_mbox_log) * adap->mbox_log->size;
+ break;
default:
break;
}
--
2.14.1
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