diff options
author | Joe Carnuccio <joe.carnuccio@qlogic.com> | 2009-03-24 16:08:12 (GMT) |
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committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-03 14:22:51 (GMT) |
commit | ad0ecd61f4ad3260ca8f7216765ddbb1a10677ea (patch) | |
tree | 4a228bd11305a1c07647b948e571542ac9b9389c /drivers/scsi/qla2xxx/qla_attr.c | |
parent | fbcbb5d0cf69ba8b59028ec3c5b9f9ff04409b88 (diff) | |
download | linux-fsl-qoriq-ad0ecd61f4ad3260ca8f7216765ddbb1a10677ea.tar.xz |
[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>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 144 |
1 files changed, 144 insertions, 0 deletions
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 @@ static struct bin_attribute sysfs_reset_attr = { .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 @@ static struct sysfs_entry { { "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 @@ qla2x00_alloc_sysfs_attr(scsi_qla_host_t *vha) 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 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *vha) 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); |