From b1a2c179a266efddb283467cc7a238d98a5244b5 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Thu, 28 Dec 2017 12:33:23 -0800 Subject: [PATCH] scsi: qla2xxx: Tweak resource count dump Fetch actual data from firmware instead of static data at chip reset time. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dfs.c | 32 +++++++++++++++++--------------- drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_mbx.c | 30 ++++++++++++++++++++++++++++++ 3 files changed, 48 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index d231e71561347..ddb53db61fd28 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -127,21 +127,23 @@ static int qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) { struct scsi_qla_host *vha = s->private; - struct qla_hw_data *ha = vha->hw; - - seq_puts(s, "FW Resource count\n\n"); - seq_printf(s, "Original TGT exchg count[%d]\n", - ha->orig_fw_tgt_xcb_count); - seq_printf(s, "current TGT exchg count[%d]\n", - ha->cur_fw_tgt_xcb_count); - seq_printf(s, "original Initiator Exchange count[%d]\n", - ha->orig_fw_xcb_count); - seq_printf(s, "Current Initiator Exchange count[%d]\n", - ha->cur_fw_xcb_count); - seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count); - seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count); - seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports); - seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count); + uint16_t mb[MAX_IOCB_MB_REG]; + int rc; + + rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG); + if (rc != QLA_SUCCESS) { + seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]); + } else { + seq_puts(s, "FW Resource count\n\n"); + seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]); + seq_printf(s, "current TGT exchg count[%d]\n", mb[2]); + seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]); + seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]); + seq_printf(s, "Original IOCB count[%d]\n", mb[7]); + seq_printf(s, "Current IOCB count[%d]\n", mb[10]); + seq_printf(s, "MAX VP count[%d]\n", mb[11]); + seq_printf(s, "MAX FCF count[%d]\n", mb[12]); + } return 0; } diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 7b61c96502e41..9d7b66abfc10e 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -504,6 +504,7 @@ int qla24xx_get_port_login_templ(scsi_qla_host_t *, dma_addr_t, extern int qla27xx_get_zio_threshold(scsi_qla_host_t *, uint16_t *); extern int qla27xx_set_zio_threshold(scsi_qla_host_t *, uint16_t); +int qla24xx_res_count_wait(struct scsi_qla_host *, uint16_t *, int); /* * Global Function Prototypes in qla_isr.c source file. diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index dea2e66be0b1c..adc93a505f159 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; +} -- 2.39.5