diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-01-07 08:48:00 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-08 19:39:09 -0800 |
| commit | 49aa284ffe64c4c13d63d315aa374e0f4bdd4b7c (patch) | |
| tree | e5c4b1755ba2ed6969044a453b84bd018b669897 /drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | |
| parent | cd91cc5bdddf50f5c775fe5baeef7891b31d8741 (diff) | |
cxgb4: Add support for devlog
Add support for device log entry in debugfs
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 04e675b8218..6de41cc6687 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -5541,6 +5541,8 @@ static int adap_init0(struct adapter *adap) enum dev_state state; u32 params[7], val[7]; struct fw_caps_config_cmd caps_cmd; + struct fw_devlog_cmd devlog_cmd; + u32 devlog_meminfo; int reset = 1; /* Contact FW, advertising Master capability */ @@ -5621,6 +5623,30 @@ static int adap_init0(struct adapter *adap) if (ret < 0) goto bye; + /* Read firmware device log parameters. We really need to find a way + * to get these parameters initialized with some default values (which + * are likely to be correct) for the case where we either don't + * attache to the firmware or it's crashed when we probe the adapter. + * That way we'll still be able to perform early firmware startup + * debugging ... If the request to get the Firmware's Device Log + * parameters fails, we'll live so we don't make that a fatal error. + */ + memset(&devlog_cmd, 0, sizeof(devlog_cmd)); + devlog_cmd.op_to_write = htonl(FW_CMD_OP_V(FW_DEVLOG_CMD) | + FW_CMD_REQUEST_F | FW_CMD_READ_F); + devlog_cmd.retval_len16 = htonl(FW_LEN16(devlog_cmd)); + ret = t4_wr_mbox(adap, adap->mbox, &devlog_cmd, sizeof(devlog_cmd), + &devlog_cmd); + if (ret == 0) { + devlog_meminfo = + ntohl(devlog_cmd.memtype_devlog_memaddr16_devlog); + adap->params.devlog.memtype = + FW_DEVLOG_CMD_MEMTYPE_DEVLOG_G(devlog_meminfo); + adap->params.devlog.start = + FW_DEVLOG_CMD_MEMADDR16_DEVLOG_G(devlog_meminfo) << 4; + adap->params.devlog.size = ntohl(devlog_cmd.memsize_devlog); + } + /* * Find out what ports are available to us. Note that we need to do * this before calling adap_init0_no_config() since it needs nports |