[SCSI] qla2xxx: Add EDC-update support.
Interface allows for the update of onboard EDC firmware
present on mezzanine ISP25xx type cards.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index c017dba..8779901 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -548,6 +548,144 @@
.write = qla2x00_sysfs_write_reset,
};
+static ssize_t
+qla2x00_sysfs_write_edc(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;
+ uint16_t dev, adr, opt, len;
+ int rval;
+
+ ha->edc_data_len = 0;
+
+ if (!capable(CAP_SYS_ADMIN) || off != 0 || count < 8)
+ return 0;
+
+ if (!ha->edc_data) {
+ ha->edc_data = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
+ &ha->edc_data_dma);
+ if (!ha->edc_data) {
+ DEBUG2(qla_printk(KERN_INFO, ha,
+ "Unable to allocate memory for EDC write.\n"));
+ return 0;
+ }
+ }
+
+ dev = le16_to_cpup((void *)&buf[0]);
+ adr = le16_to_cpup((void *)&buf[2]);
+ opt = le16_to_cpup((void *)&buf[4]);
+ len = le16_to_cpup((void *)&buf[6]);
+
+ if (!(opt & BIT_0))
+ if (len == 0 || len > DMA_POOL_SIZE || len > count - 8)
+ return -EINVAL;
+
+ memcpy(ha->edc_data, &buf[8], len);
+
+ rval = qla2x00_write_edc(vha, dev, adr, ha->edc_data_dma,
+ ha->edc_data, len, opt);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2(qla_printk(KERN_INFO, ha,
+ "Unable to write EDC (%x) %02x:%02x:%04x:%02x:%02x.\n",
+ rval, dev, adr, opt, len, *buf));
+ return 0;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_edc_attr = {
+ .attr = {
+ .name = "edc",
+ .mode = S_IWUSR,
+ },
+ .size = 0,
+ .write = qla2x00_sysfs_write_edc,
+};
+
+static ssize_t
+qla2x00_sysfs_write_edc_status(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;
+ uint16_t dev, adr, opt, len;
+ int rval;
+
+ ha->edc_data_len = 0;
+
+ if (!capable(CAP_SYS_ADMIN) || off != 0 || count < 8)
+ return 0;
+
+ if (!ha->edc_data) {
+ ha->edc_data = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
+ &ha->edc_data_dma);
+ if (!ha->edc_data) {
+ DEBUG2(qla_printk(KERN_INFO, ha,
+ "Unable to allocate memory for EDC status.\n"));
+ return 0;
+ }
+ }
+
+ dev = le16_to_cpup((void *)&buf[0]);
+ adr = le16_to_cpup((void *)&buf[2]);
+ opt = le16_to_cpup((void *)&buf[4]);
+ len = le16_to_cpup((void *)&buf[6]);
+
+ if (!(opt & BIT_0))
+ if (len == 0 || len > DMA_POOL_SIZE)
+ return -EINVAL;
+
+ memset(ha->edc_data, 0, len);
+ rval = qla2x00_read_edc(vha, dev, adr, ha->edc_data_dma,
+ ha->edc_data, len, opt);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2(qla_printk(KERN_INFO, ha,
+ "Unable to write EDC status (%x) %02x:%02x:%04x:%02x.\n",
+ rval, dev, adr, opt, len));
+ return 0;
+ }
+
+ ha->edc_data_len = len;
+
+ return count;
+}
+
+static ssize_t
+qla2x00_sysfs_read_edc_status(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;
+
+ if (!capable(CAP_SYS_ADMIN) || off != 0 || count == 0)
+ return 0;
+
+ if (!ha->edc_data || ha->edc_data_len == 0 || ha->edc_data_len > count)
+ return -EINVAL;
+
+ memcpy(buf, ha->edc_data, ha->edc_data_len);
+
+ return ha->edc_data_len;
+}
+
+static struct bin_attribute sysfs_edc_status_attr = {
+ .attr = {
+ .name = "edc_status",
+ .mode = S_IRUSR | S_IWUSR,
+ },
+ .size = 0,
+ .write = qla2x00_sysfs_write_edc_status,
+ .read = qla2x00_sysfs_read_edc_status,
+};
+
static struct sysfs_entry {
char *name;
struct bin_attribute *attr;
@@ -560,6 +698,8 @@
{ "vpd", &sysfs_vpd_attr, 1 },
{ "sfp", &sysfs_sfp_attr, 1 },
{ "reset", &sysfs_reset_attr, },
+ { "edc", &sysfs_edc_attr, 2 },
+ { "edc_status", &sysfs_edc_status_attr, 2 },
{ NULL },
};
@@ -573,6 +713,8 @@
for (iter = bin_file_entries; iter->name; iter++) {
if (iter->is4GBp_only && !IS_FWI2_CAPABLE(vha->hw))
continue;
+ if (iter->is4GBp_only == 2 && !IS_QLA25XX(vha->hw))
+ continue;
ret = sysfs_create_bin_file(&host->shost_gendev.kobj,
iter->attr);
@@ -593,6 +735,8 @@
for (iter = bin_file_entries; iter->name; iter++) {
if (iter->is4GBp_only && !IS_FWI2_CAPABLE(ha))
continue;
+ if (iter->is4GBp_only == 2 && !IS_QLA25XX(ha))
+ continue;
sysfs_remove_bin_file(&host->shost_gendev.kobj,
iter->attr);