> On Dec 9, 2015, at 3:18 PM, Don Brace <don.br...@pmcs.com> wrote:
No commit message?
>
> Reviewed-by: Justin Lindley <justin.lind...@pmcs.com>
> Reviewed-by: Kevin Barnett <kevin.barn...@pmcs.com>
> Reviewed-by: Scott Teel <scott.t...@pmcs.com>
> Signed-off-by: Don Brace <don.br...@pmcs.com>
> ---
> drivers/scsi/hpsa.c | 108 ++++++++++++++++++++++++++++++++++++++++++++---
> drivers/scsi/hpsa_cmd.h | 13 ++++++
> 2 files changed, 114 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
> index f8370b8..6f84ec7 100644
> --- a/drivers/scsi/hpsa.c
> +++ b/drivers/scsi/hpsa.c
> @@ -750,7 +750,6 @@ static ssize_t host_show_hp_ssd_smart_path_enabled(struct
> device *dev,
> }
>
> #define MAX_PATHS 8
> -
> static ssize_t path_info_show(struct device *dev,
> struct device_attribute *attr, char *buf)
> {
> @@ -792,9 +791,7 @@ static ssize_t path_info_show(struct device *dev,
> hdev->bus, hdev->target, hdev->lun,
> scsi_device_type(hdev->devtype));
>
> - if (hdev->external ||
> - hdev->devtype == TYPE_RAID ||
> - is_logical_device(hdev)) {
> + if (hdev->devtype == TYPE_RAID || is_logical_device(hdev)) {
How does removing the check for external here relate to the rest of this commit?
> output_len += scnprintf(buf + output_len,
> PAGE_SIZE - output_len,
> "%s\n", active);
> @@ -808,8 +805,7 @@ static ssize_t path_info_show(struct device *dev,
> phys_connector[0] = '0';
> if (phys_connector[1] < '0')
> phys_connector[1] = '0';
> - if (hdev->phys_connector[i] > 0)
> - output_len += scnprintf(buf + output_len,
> + output_len += scnprintf(buf + output_len,
Same question regarding the removal of the > 0 check.
> PAGE_SIZE - output_len,
> "PORT: %.2s ",
> phys_connector);
> @@ -3191,6 +3187,90 @@ out:
> return rc;
> }
>
> +/*
> + * get enclosure information
> + * struct ReportExtendedLUNdata *rlep - Used for BMIC drive number
> + * struct hpsa_scsi_dev_t *encl_dev - device entry for enclosure
> + * Uses id_physical_device to determine the box_index.
> + */
> +static int hpsa_get_enclosure_info(struct ctlr_info *h,
> + unsigned char *scsi3addr,
> + struct ReportExtendedLUNdata *rlep, int rle_index,
> + struct hpsa_scsi_dev_t *encl_dev)
> +{
> + int rc = -1;
> + struct CommandList *c = NULL;
> + struct ErrorInfo *ei = NULL;
> + struct bmic_sense_storage_box_params *bssbp = NULL;
> + struct bmic_identify_physical_device *id_phys = NULL;
> + struct ext_report_lun_entry *rle = &rlep->LUN[rle_index];
> + u16 bmic_device_index = 0;
> +
> +
> + bssbp = kzalloc(sizeof(*bssbp), GFP_KERNEL);
> + if (!bssbp)
> + goto out;
> +
> + id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL);
> + if (!id_phys)
> + goto out;
> +
> + bmic_device_index = GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]);
> +
> + if (bmic_device_index == 0xFF00)
> + goto out;
Why not put this check before the memory allocations so you can
avoid them if this condition is not met?
> +
> + memset(id_phys, 0, sizeof(*id_phys));
Didn't you just obtain zeroed memory from kzalloc()?
> + rc = hpsa_bmic_id_physical_device(h, scsi3addr, bmic_device_index,
> + id_phys, sizeof(*id_phys));
> + if (rc) {
> + dev_warn(&h->pdev->dev, "%s: id_phys failed %d bdi[0x%x]\n",
> + __func__, encl_dev->external, bmic_device_index);
> + goto out;
> + }
> +
> + c = cmd_alloc(h);
> +
> + rc = fill_cmd(c, BMIC_SENSE_STORAGE_BOX_PARAMS, h, bssbp,
> + sizeof(*bssbp), 0, RAID_CTLR_LUNID, TYPE_CMD);
> +
> + if (rc)
> + goto out;
> +
> + if (id_phys->phys_connector[1] == 'E')
> + c->Request.CDB[5] = id_phys->box_index;
> + else
> + c->Request.CDB[5] = 0;
> +
> + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
> + NO_TIMEOUT);
> + if (rc)
> + goto out;
> +
> + ei = c->err_info;
> + if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
> + rc = -1;
> + goto out;
> + }
> +
> + encl_dev->box[id_phys->active_path_number] = bssbp->phys_box_on_port;
> + memcpy(&encl_dev->phys_connector[id_phys->active_path_number],
> + bssbp->phys_connector, sizeof(bssbp->phys_connector));
> +
> + rc = IO_OK;
> +out:
> + kfree(bssbp);
> + kfree(id_phys);
> +
> + if (c)
> + cmd_free(h, c);
> +
> + if (rc != IO_OK)
> + hpsa_show_dev_msg(KERN_INFO, h, encl_dev,
> + "Error, could not get enclosure information\n");
> + return rc;
> +}
> +
> static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h,
> unsigned char *scsi3addr)
> {
> @@ -4032,7 +4112,8 @@ static void hpsa_update_scsi_devices(struct ctlr_info
> *h)
>
> /* skip masked non-disk devices */
> if (MASKED_DEVICE(lunaddrbytes) && physical_device &&
> - (physdev_list->LUN[phys_dev_index].device_flags & 0x01))
> + (physdev_list->LUN[phys_dev_index].device_type != 0x06) &&
> + (physdev_list->LUN[phys_dev_index].device_flags & 0x01))
> continue;
>
> /* Get device type, vendor, model, device id */
> @@ -4117,6 +4198,9 @@ static void hpsa_update_scsi_devices(struct ctlr_info
> *h)
> case TYPE_TAPE:
> case TYPE_MEDIUM_CHANGER:
Is it 'okay' that these two types are falling through and will call this new
enclosure info routine?
> case TYPE_ENCLOSURE:
> + hpsa_get_enclosure_info(h, lunaddrbytes,
> + physdev_list, phys_dev_index,
> + this_device);
Any reason this routine wasn't made a void? The return code is not being used
and the other similar helpers in this path are void.
> ncurrent++;
> break;
> case TYPE_RAID:
> @@ -6629,6 +6713,16 @@ static int fill_cmd(struct CommandList *c, u8 cmd,
> struct ctlr_info *h,
> c->Request.CDB[7] = (size >> 16) & 0xFF;
> c->Request.CDB[8] = (size >> 8) & 0XFF;
> break;
> + case BMIC_SENSE_STORAGE_BOX_PARAMS:
> + c->Request.CDBLen = 10;
> + c->Request.type_attr_dir =
> + TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
> + c->Request.Timeout = 0;
> + c->Request.CDB[0] = BMIC_READ;
> + c->Request.CDB[6] = BMIC_SENSE_STORAGE_BOX_PARAMS;
> + c->Request.CDB[7] = (size >> 16) & 0xFF;
> + c->Request.CDB[8] = (size >> 8) & 0XFF;
> + break;
> case BMIC_IDENTIFY_CONTROLLER:
> c->Request.CDBLen = 10;
> c->Request.type_attr_dir =
> diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
> index d92ef0d..6a919ad 100644
> --- a/drivers/scsi/hpsa_cmd.h
> +++ b/drivers/scsi/hpsa_cmd.h
> @@ -291,6 +291,7 @@ struct SenseSubsystem_info {
> #define BMIC_SENSE_DIAG_OPTIONS 0xF5
> #define HPSA_DIAG_OPTS_DISABLE_RLD_CACHING 0x40000000
> #define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
> +#define BMIC_SENSE_STORAGE_BOX_PARAMS 0x65
>
> /* Command List Structure */
> union SCSI3Addr {
> @@ -842,5 +843,17 @@ struct bmic_sense_subsystem_info {
> u8 pad[332];
> };
>
> +struct bmic_sense_storage_box_params {
> + u8 reserved[36];
> + u8 inquiry_valid;
> + u8 reserved_1[68];
> + u8 phys_box_on_port;
> + u8 reserved_2[22];
> + u16 connection_info;
> + u8 reserver_3[84];
> + u8 phys_connector[2];
> + u8 reserved_4[296];
> +};
> +
> #pragma pack()
> #endif /* HPSA_CMD_H */
>
> --
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