From ce0423f4a23317d0166addd7d6fcc4a0fa95e751 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Wed, 3 Jun 2009 09:55:13 -0700 Subject: [PATCH] [SCSI] qla2xxx: Export XGMAC statistics on supported ISPs. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 57 +++++++++++++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_def.h | 4 +++ drivers/scsi/qla2xxx/qla_fw.h | 1 + drivers/scsi/qla2xxx/qla_gbl.h | 3 ++ drivers/scsi/qla2xxx/qla_mbx.c | 38 ++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_os.c | 4 +++ 6 files changed, 107 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 524ceb9b9288..e8c1c9e01a7b 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -692,6 +692,58 @@ static struct bin_attribute sysfs_edc_status_attr = { .read = qla2x00_sysfs_read_edc_status, }; +static ssize_t +qla2x00_sysfs_read_xgmac_stats(struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, + struct device, kobj))); + struct qla_hw_data *ha = vha->hw; + int rval; + uint16_t actual_size; + + if (!capable(CAP_SYS_ADMIN) || off != 0 || count > XGMAC_DATA_SIZE) + return 0; + + if (ha->xgmac_data) + goto do_read; + + ha->xgmac_data = dma_alloc_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE, + &ha->xgmac_data_dma, GFP_KERNEL); + if (!ha->xgmac_data) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for XGMAC read-data.\n"); + return 0; + } + +do_read: + actual_size = 0; + memset(ha->xgmac_data, 0, XGMAC_DATA_SIZE); + + rval = qla2x00_get_xgmac_stats(vha, ha->xgmac_data_dma, + XGMAC_DATA_SIZE, &actual_size); + if (rval != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, + "Unable to read XGMAC data (%x).\n", rval); + count = 0; + } + + count = actual_size > count ? count: actual_size; + memcpy(buf, ha->xgmac_data, count); + + return count; +} + +static struct bin_attribute sysfs_xgmac_stats_attr = { + .attr = { + .name = "xgmac_stats", + .mode = S_IRUSR, + }, + .size = 0, + .read = qla2x00_sysfs_read_xgmac_stats, +}; + static struct sysfs_entry { char *name; struct bin_attribute *attr; @@ -706,6 +758,7 @@ static struct sysfs_entry { { "reset", &sysfs_reset_attr, }, { "edc", &sysfs_edc_attr, 2 }, { "edc_status", &sysfs_edc_status_attr, 2 }, + { "xgmac_stats", &sysfs_xgmac_stats_attr, 3 }, { NULL }, }; @@ -721,6 +774,8 @@ qla2x00_alloc_sysfs_attr(scsi_qla_host_t *vha) continue; if (iter->is4GBp_only == 2 && !IS_QLA25XX(vha->hw)) continue; + if (iter->is4GBp_only == 3 && !IS_QLA81XX(vha->hw)) + continue; ret = sysfs_create_bin_file(&host->shost_gendev.kobj, iter->attr); @@ -743,6 +798,8 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *vha) continue; if (iter->is4GBp_only == 2 && !IS_QLA25XX(ha)) continue; + if (iter->is4GBp_only == 3 && !IS_QLA81XX(ha)) + continue; sysfs_remove_bin_file(&host->shost_gendev.kobj, iter->attr); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 721bae94e437..da941be9b182 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2397,6 +2397,10 @@ struct qla_hw_data { dma_addr_t edc_data_dma; uint16_t edc_data_len; +#define XGMAC_DATA_SIZE PAGE_SIZE + void *xgmac_data; + dma_addr_t xgmac_data_dma; + struct task_struct *dpc_thread; uint8_t dpc_active; /* DPC routine is active */ diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index f389f3da0bab..80ab46cfaca6 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -1405,6 +1405,7 @@ struct access_chip_rsp_84xx { #define MBC_IDC_ACK 0x101 #define MBC_RESTART_MPI_FW 0x3d #define MBC_FLASH_ACCESS_CTRL 0x3e /* Control flash access. */ +#define MBC_GET_XGMAC_STATS 0x7a /* Flash access control option field bit definitions */ #define FAC_OPT_FORCE_SEMAPHORE BIT_15 diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index f17d525897a0..66ba3997c91c 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -293,6 +293,9 @@ qla81xx_fac_do_write_enable(scsi_qla_host_t *, int); extern int qla81xx_fac_erase_sector(scsi_qla_host_t *, uint32_t, uint32_t); +extern int +qla2x00_get_xgmac_stats(scsi_qla_host_t *, dma_addr_t, uint16_t, uint16_t *); + /* * 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 7d0eeec9ba57..2497fe4ce5aa 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -3462,3 +3462,41 @@ qla2x00_write_edc(scsi_qla_host_t *vha, uint16_t dev, uint16_t adr, return rval; } + +int +qla2x00_get_xgmac_stats(scsi_qla_host_t *vha, dma_addr_t stats_dma, + uint16_t size_in_bytes, uint16_t *actual_size) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + if (!IS_QLA81XX(vha->hw)) + return QLA_FUNCTION_FAILED; + + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); + + mcp->mb[0] = MBC_GET_XGMAC_STATS; + mcp->mb[2] = MSW(stats_dma); + mcp->mb[3] = LSW(stats_dma); + mcp->mb[6] = MSW(MSD(stats_dma)); + mcp->mb[7] = LSW(MSD(stats_dma)); + mcp->mb[8] = size_in_bytes >> 2; + mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0; + mcp->in_mb = MBX_2|MBX_1|MBX_0; + mcp->tov = MBX_TOV_SECONDS; + mcp->flags = 0; + rval = qla2x00_mailbox_command(vha, mcp); + + if (rval != QLA_SUCCESS) { + DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=0x%x " + "mb[1]=0x%x mb[2]=0x%x.\n", __func__, vha->host_no, rval, + mcp->mb[0], mcp->mb[1], mcp->mb[2])); + } else { + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); + + *actual_size = mcp->mb[2] << 2; + } + + return rval; +} diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index f4f535536952..642e976083e8 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2434,6 +2434,10 @@ qla2x00_mem_free(struct qla_hw_data *ha) vfree(ha->fw_dump); } + if (ha->xgmac_data) + dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE, + ha->xgmac_data, ha->xgmac_data_dma); + if (ha->sns_cmd) dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), ha->sns_cmd, ha->sns_cmd_dma); -- 2.30.2