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authorQuinn Tran <quinn.tran@qlogic.com>2017-12-28 12:33:23 -0800
committerMartin K. Petersen <martin.petersen@oracle.com>2018-01-03 23:41:06 -0500
commit94d83e3641765e08076efc93632eab579c0397e2 (patch)
tree6969ae522b5dcd1541c59bca1bea9750df5f00ef /drivers/scsi/qla2xxx/qla_mbx.c
parent82abdcaf3ededf5ad18644ac7a416f5e4f95a7fe (diff)
downloadlinux-94d83e3641765e08076efc93632eab579c0397e2.tar.bz2
scsi: qla2xxx: Tweak resource count dump
Fetch actual data from firmware instead of static data at chip reset time. Signed-off-by: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_mbx.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_mbx.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index dea2e66be0b1..adc93a505f15 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -17,6 +17,7 @@ static struct mb_cmd_name {
{MBC_GET_PORT_DATABASE, "GPDB"},
{MBC_GET_ID_LIST, "GIDList"},
{MBC_GET_LINK_PRIV_STATS, "Stats"},
+ {MBC_GET_RESOURCE_COUNTS, "ResCnt"},
};
static const char *mb_to_str(uint16_t cmd)
@@ -6272,3 +6273,32 @@ qla2x00_read_sfp_dev(struct scsi_qla_host *vha, char *buf, int count)
return rval;
}
+
+int qla24xx_res_count_wait(struct scsi_qla_host *vha,
+ uint16_t *out_mb, int out_mb_sz)
+{
+ int rval = QLA_FUNCTION_FAILED;
+ mbx_cmd_t mc;
+
+ if (!vha->hw->flags.fw_started)
+ goto done;
+
+ memset(&mc, 0, sizeof(mc));
+ mc.mb[0] = MBC_GET_RESOURCE_COUNTS;
+
+ rval = qla24xx_send_mb_cmd(vha, &mc);
+ if (rval != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_mbx, vha, 0xffff,
+ "%s: fail\n", __func__);
+ } else {
+ if (out_mb_sz <= SIZEOF_IOCB_MB_REG)
+ memcpy(out_mb, mc.mb, out_mb_sz);
+ else
+ memcpy(out_mb, mc.mb, SIZEOF_IOCB_MB_REG);
+
+ ql_dbg(ql_dbg_mbx, vha, 0xffff,
+ "%s: done\n", __func__);
+ }
+done:
+ return rval;
+}