From: Sawan Chandak <sawan.chandak@cavium.com>
Date: Wed, 23 Aug 2017 15:05:16 -0700
Subject: scsi: qla2xxx: Add support for minimum link speed
Patch-mainline: Queued in subsystem maintainer repository
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git
Git-commit: 92d4408e34667f521cda7192fc8dda3da25d45bc
References: FATE#322910
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/scsi/qla2xxx/qla_attr.c | 36 ++++++++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_def.h | 4 ++++
drivers/scsi/qla2xxx/qla_fw.h | 4 +++-
drivers/scsi/qla2xxx/qla_isr.c | 5 +++++
drivers/scsi/qla2xxx/qla_mbx.c | 46 ++++++++++++++++++++++++++++++++++++++---
5 files changed, 91 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 9d2862233e3c..75c4b312645e 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1481,6 +1481,38 @@ qla2x00_pep_version_show(struct device *dev, struct device_attribute *attr,
ha->pep_version[0], ha->pep_version[1], ha->pep_version[2]);
}
+static ssize_t
+qla2x00_min_link_speed_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!IS_QLA27XX(ha))
+ return scnprintf(buf, PAGE_SIZE, "\n");
+
+ return scnprintf(buf, PAGE_SIZE, "%s\n",
+ ha->min_link_speed == 5 ? "32Gps" :
+ ha->min_link_speed == 4 ? "16Gps" :
+ ha->min_link_speed == 3 ? "8Gps" :
+ ha->min_link_speed == 2 ? "4Gps" :
+ ha->min_link_speed != 0 ? "unknown" : "");
+}
+
+static ssize_t
+qla2x00_max_speed_sup_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!IS_QLA27XX(ha))
+ return scnprintf(buf, PAGE_SIZE, "\n");
+
+ return scnprintf(buf, PAGE_SIZE, "%s\n",
+ ha->max_speed_sup ? "32Gps" : "16Gps");
+}
+
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@@ -1526,6 +1558,8 @@ static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR,
qla2x00_allow_cna_fw_dump_show,
qla2x00_allow_cna_fw_dump_store);
static DEVICE_ATTR(pep_version, S_IRUGO, qla2x00_pep_version_show, NULL);
+static DEVICE_ATTR(min_link_speed, S_IRUGO, qla2x00_min_link_speed_show, NULL);
+static DEVICE_ATTR(max_speed_sup, S_IRUGO, qla2x00_max_speed_sup_show, NULL);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
@@ -1560,6 +1594,8 @@ struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_fw_dump_size,
&dev_attr_allow_cna_fw_dump,
&dev_attr_pep_version,
+ &dev_attr_min_link_speed,
+ &dev_attr_max_speed_sup,
NULL,
};
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 609687d04e3c..0f80b812f4a7 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -902,6 +902,7 @@ struct mbx_cmd_32 {
#define MBA_SHUTDOWN_REQUESTED 0x8062 /* Shutdown Requested */
#define MBA_TEMPERATURE_ALERT 0x8070 /* Temperature Alert */
#define MBA_DPORT_DIAGNOSTICS 0x8080 /* D-port Diagnostics */
+#define MBA_TRANS_INSERT 0x8130 /* Transceiver Insertion */
#define MBA_FW_INIT_FAILURE 0x8401 /* Firmware initialization failure */
#define MBA_MIRROR_LUN_CHANGE 0x8402 /* Mirror LUN State Change
Notification */
@@ -4026,6 +4027,8 @@ struct qla_hw_data {
struct qlt_hw_data tgt;
int allow_cna_fw_dump;
+ uint16_t min_link_speed;
+ uint16_t max_speed_sup;
atomic_t nvme_active_aen_cnt;
uint16_t nvme_last_rptd_aen; /* Last recorded aen count */
@@ -4212,6 +4215,7 @@ typedef struct scsi_qla_host {
int fcport_count;
wait_queue_head_t fcport_waitQ;
wait_queue_head_t vref_waitq;
+ uint8_t min_link_speed_feat;
} scsi_qla_host_t;
struct qla27xx_image_status {
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index b9c9886e8b1d..94eb1694fc3e 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1745,7 +1745,9 @@ struct nvram_81xx {
uint16_t reserved_6_3[14];
/* Offset 192. */
- uint16_t reserved_7[32];
+ uint8_t min_link_speed;
+ uint8_t reserved_7_0;
+ uint16_t reserved_7[31];
/*
* BIT 0 = Enable spinup delay
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index eb43fc8be758..a7f33e674c8d 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1235,6 +1235,11 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
schedule_work(&ha->board_disable);
break;
+ case MBA_TRANS_INSERT:
+ ql_dbg(ql_dbg_async, vha, 0x5091,
+ "Transceiver Insertion: %04x\n", mb[1]);
+ break;
+
default:
ql_dbg(ql_dbg_async, vha, 0x5057,
"Unknown AEN:%04x %04x %04x %04x\n",
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index da992b761402..32bbbd50567d 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -628,6 +628,19 @@ qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
if (ql2xnvmeenable && IS_QLA27XX(ha))
mcp->mb[4] |= NVME_ENABLE_FLAG;
+ if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
+ struct nvram_81xx *nv = ha->nvram;
+ /* set minimum speed if specified in nvram */
+ if (nv->min_link_speed >= 2 &&
+ nv->min_link_speed <= 5) {
+ mcp->mb[4] |= BIT_4;
+ mcp->mb[11] = nv->min_link_speed;
+ mcp->out_mb |= MBX_11;
+ mcp->in_mb |= BIT_5;
+ vha->min_link_speed_feat = nv->min_link_speed;
+ }
+ }
+
if (ha->flags.exlogins_enabled)
mcp->mb[4] |= ENABLE_EXTENDED_LOGIN;
@@ -654,8 +667,26 @@ qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
if (IS_FWI2_CAPABLE(ha)) {
+ ql_dbg(ql_dbg_mbx, vha, 0x1027,
+ "exchanges=%x.\n", mcp->mb[1]);
+ if (IS_QLA27XX(ha)) {
+ ha->max_speed_sup = mcp->mb[2] & 1;
+ ql_dbg(ql_dbg_mbx, vha, 0x119b,
+ "Maximum speed supported=%s.\n",
+ ha->max_speed_sup ? "32Gps" : "16Gps");
+ if (vha->min_link_speed_feat) {
+ ha->min_link_speed = mcp->mb[5];
+ ql_dbg(ql_dbg_mbx, vha, 0x119c,
+ "Minimum speed set=%s.\n",
+ mcp->mb[5] == 5 ? "32Gps" :
+ mcp->mb[5] == 4 ? "16Gps" :
+ mcp->mb[5] == 3 ? "8Gps" :
+ mcp->mb[5] == 2 ? "4Gps" :
+ "unknown");
+ }
+ }
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1027,
- "Done exchanges=%x.\n", mcp->mb[1]);
+ "Done.\n");
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1028,
"Done %s.\n", __func__);
@@ -1687,7 +1718,11 @@ qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
"Failed=%x mb[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x,.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3]);
} else {
- /*EMPTY*/
+ if (IS_QLA27XX(ha)) {
+ if (mcp->mb[2] == 6 || mcp->mb[3] == 2)
+ ql_dbg(ql_dbg_mbx, vha, 0x119d,
+ "Invalid SFP/Validation Failed\n");
+ }
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104e,
"Done %s.\n", __func__);
}
@@ -1892,6 +1927,7 @@ qla2x00_get_firmware_state(scsi_qla_host_t *vha, uint16_t *states)
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
+ struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1054,
"Entered %s.\n", __func__);
@@ -1920,7 +1956,11 @@ qla2x00_get_firmware_state(scsi_qla_host_t *vha, uint16_t *states)
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1055, "Failed=%x.\n", rval);
} else {
- /*EMPTY*/
+ if (IS_QLA27XX(ha)) {
+ if (mcp->mb[2] == 6 || mcp->mb[3] == 2)
+ ql_dbg(ql_dbg_mbx, vha, 0x119e,
+ "Invalid SFP/Validation Failed\n");
+ }
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1056,
"Done %s.\n", __func__);
}
--
2.12.3