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path: root/drivers/scsi/lpfc/lpfc_attr.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c119
1 files changed, 116 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 7c015982b40..9ec04600130 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -96,6 +96,58 @@ lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
}
+static ssize_t
+lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ if (phba->cfg_enable_bg)
+ if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
+ return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
+ else
+ return snprintf(buf, PAGE_SIZE,
+ "BlockGuard Not Supported\n");
+ else
+ return snprintf(buf, PAGE_SIZE,
+ "BlockGuard Disabled\n");
+}
+
+static ssize_t
+lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ return snprintf(buf, PAGE_SIZE, "%llu\n", phba->bg_guard_err_cnt);
+}
+
+static ssize_t
+lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ return snprintf(buf, PAGE_SIZE, "%llu\n", phba->bg_apptag_err_cnt);
+}
+
+static ssize_t
+lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ return snprintf(buf, PAGE_SIZE, "%llu\n", phba->bg_reftag_err_cnt);
+}
+
/**
* lpfc_info_show: Return some pci info about the host in ascii.
* @dev: class converted to a Scsi_host structure.
@@ -1485,6 +1537,10 @@ lpfc_vport_param_store(name)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
lpfc_##name##_show, lpfc_##name##_store)
+static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
+static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
+static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
+static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
@@ -1970,6 +2026,7 @@ static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
# LOG_LINK_EVENT 0x10 Link events
# LOG_FCP 0x40 FCP traffic history
# LOG_NODE 0x80 Node table events
+# LOG_BG 0x200 BlockBuard events
# LOG_MISC 0x400 Miscellaneous events
# LOG_SLI 0x800 SLI events
# LOG_FCP_ERROR 0x1000 Only log FCP errors
@@ -2769,6 +2826,42 @@ LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
/*
+# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
+# 0 = BlockGuard disabled (default)
+# 1 = BlockGuard enabled
+# Value range is [0,1]. Default value is 0.
+*/
+LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
+
+
+/*
+# lpfc_prot_mask: i
+# - Bit mask of host protection capabilities used to register with the
+# SCSI mid-layer
+# - Only meaningful if BG is turned on (lpfc_enable_bg=1).
+# - Allows you to ultimately specify which profiles to use
+# - Default will result in registering capabilities for all profiles.
+#
+*/
+unsigned int lpfc_prot_mask = SHOST_DIX_TYPE0_PROTECTION;
+
+module_param(lpfc_prot_mask, uint, 0);
+MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
+
+/*
+# lpfc_prot_guard: i
+# - Bit mask of protection guard types to register with the SCSI mid-layer
+# - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
+# - Allows you to ultimately specify which profiles to use
+# - Default will result in registering capabilities for all guard types
+#
+*/
+unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
+module_param(lpfc_prot_guard, byte, 0);
+MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
+
+
+/*
* lpfc_sg_seg_cnt: Initial Maximum DMA Segment Count
* This value can be set to values between 64 and 256. The default value is
* 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
@@ -2777,7 +2870,15 @@ LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
+LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
+ LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
+ "Max Protection Scatter Gather Segment Count");
+
struct device_attribute *lpfc_hba_attrs[] = {
+ &dev_attr_bg_info,
+ &dev_attr_bg_guard_err,
+ &dev_attr_bg_apptag_err,
+ &dev_attr_bg_reftag_err,
&dev_attr_info,
&dev_attr_serialnum,
&dev_attr_modeldesc,
@@ -2825,6 +2926,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_poll,
&dev_attr_lpfc_poll_tmo,
&dev_attr_lpfc_use_msi,
+ &dev_attr_lpfc_enable_bg,
&dev_attr_lpfc_soft_wwnn,
&dev_attr_lpfc_soft_wwpn,
&dev_attr_lpfc_soft_wwn_enable,
@@ -2833,6 +2935,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_sg_seg_cnt,
&dev_attr_lpfc_max_scsicmpl_time,
&dev_attr_lpfc_stat_data_ctrl,
+ &dev_attr_lpfc_prot_sg_seg_cnt,
NULL,
};
@@ -3961,13 +4064,12 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_use_msi_init(phba, lpfc_use_msi);
lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
+ lpfc_enable_bg_init(phba, lpfc_enable_bg);
phba->cfg_poll = lpfc_poll;
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;
lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
- /* Also reinitialize the host templates with new values. */
- lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
- lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+ lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
/*
* Since the sg_tablesize is module parameter, the sg_dma_buf_size
* used to create the sg_dma_buf_pool must be dynamically calculated.
@@ -3976,6 +4078,17 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) +
((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
+
+ if (phba->cfg_enable_bg) {
+ phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
+ phba->cfg_sg_dma_buf_size +=
+ phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
+ }
+
+ /* Also reinitialize the host templates with new values. */
+ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+ lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
return;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-24 21:01:58 +0000