Re: [PATCH V3 07/25] smartpqi: update AIO Sub Page 0x02 support

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On Thu, 2020-12-10 at 14:35 -0600, Don Brace wrote:
> From: Kevin Barnett <kevin.barnett@xxxxxxxxxxxxx>
> 
> The specification for AIO Sub-Page (0x02) has changed slightly.
> * bring the driver into conformance with the spec.
> 
> Reviewed-by: Scott Benesh <scott.benesh@xxxxxxxxxxxxx>
> Reviewed-by: Scott Teel <scott.teel@xxxxxxxxxxxxx>
> Signed-off-by: Kevin Barnett <kevin.barnett@xxxxxxxxxxxxx>
> Signed-off-by: Don Brace <don.brace@xxxxxxxxxxxxx>
> ---
>  drivers/scsi/smartpqi/smartpqi.h      |   12 ++++---
>  drivers/scsi/smartpqi/smartpqi_init.c |   60 +++++++++++++++++++++--
> ----------
>  2 files changed, 47 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/scsi/smartpqi/smartpqi.h
> b/drivers/scsi/smartpqi/smartpqi.h
> index 31281cddadfe..eb23c3cf59c0 100644
> --- a/drivers/scsi/smartpqi/smartpqi.h
> +++ b/drivers/scsi/smartpqi/smartpqi.h
> @@ -1028,13 +1028,13 @@ struct pqi_scsi_dev_raid_map_data {
>         u8      cdb_length;
>  
>         /* RAID 1 specific */
> -#define NUM_RAID1_MAP_ENTRIES 3
> +#define NUM_RAID1_MAP_ENTRIES  3
>         u32     num_it_nexus_entries;
>         u32     it_nexus[NUM_RAID1_MAP_ENTRIES];
>  
>         /* RAID 5 / RAID 6 specific */
> -       u32     p_parity_it_nexus; /* aio_handle */
> -       u32     q_parity_it_nexus; /* aio_handle */
> +       u32     p_parity_it_nexus;      /* aio_handle */
> +       u32     q_parity_it_nexus;      /* aio_handle */
>         u8      xor_mult;
>         u64     row;
>         u64     stripe_lba;
> @@ -1044,6 +1044,7 @@ struct pqi_scsi_dev_raid_map_data {
>  
>  #define RAID_CTLR_LUNID                "\0\0\0\0\0\0\0\0"
>  
> +
>  struct pqi_scsi_dev {
>         int     devtype;                /* as reported by INQUIRY
> commmand */
>         u8      device_type;            /* as reported by */
> @@ -1302,7 +1303,8 @@ struct pqi_ctrl_info {
>         u32             max_transfer_encrypted_sas_sata;
>         u32             max_transfer_encrypted_nvme;
>         u32             max_write_raid_5_6;
> -
> +       u32             max_write_raid_1_10_2drive;
> +       u32             max_write_raid_1_10_3drive;
>  
>         struct list_head scsi_device_list;
>         spinlock_t      scsi_device_list_lock;
> @@ -1533,6 +1535,8 @@ struct bmic_sense_feature_io_page_aio_subpage {
>         __le16  max_transfer_encrypted_sas_sata;
>         __le16  max_transfer_encrypted_nvme;
>         __le16  max_write_raid_5_6;
> +       __le16  max_write_raid_1_10_2drive;
> +       __le16  max_write_raid_1_10_3drive;
>  };
>  
>  struct bmic_smp_request {
> diff --git a/drivers/scsi/smartpqi/smartpqi_init.c
> b/drivers/scsi/smartpqi/smartpqi_init.c
> index aa21c1cd2cac..419887aa8ff3 100644
> --- a/drivers/scsi/smartpqi/smartpqi_init.c
> +++ b/drivers/scsi/smartpqi/smartpqi_init.c
> @@ -696,6 +696,19 @@ static int pqi_identify_physical_device(struct
> pqi_ctrl_info *ctrl_info,
>         return rc;
>  }
>  
> +static inline u32 pqi_aio_limit_to_bytes(__le16 *limit)
> +{
> +       u32 bytes;
> +
> +       bytes = get_unaligned_le16(limit);
> +       if (bytes == 0)
> +               bytes = ~0;
> +       else
> +               bytes *= 1024;
> +
> +       return bytes;
> +}

Nice, but this function and it's callers belong into patch 06/25.


> +
>  #pragma pack(1)
>  
>  struct bmic_sense_feature_buffer {
> @@ -707,11 +720,11 @@ struct bmic_sense_feature_buffer {
>  
>  #define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH      \
>         offsetofend(struct bmic_sense_feature_buffer, \
> -               aio_subpage.max_write_raid_5_6)
> +               aio_subpage.max_write_raid_1_10_3drive)
>  
>  #define MINIMUM_AIO_SUBPAGE_LENGTH     \
>         (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \
> -               max_write_raid_5_6) - \
> +               max_write_raid_1_10_3drive) - \
>                 sizeof_field(struct
> bmic_sense_feature_io_page_aio_subpage, header))
>  
>  static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info
> *ctrl_info)
> @@ -753,33 +766,28 @@ static int
> pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
>                         BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
>                 get_unaligned_le16(&buffer-
> >aio_subpage.header.page_length) <
>                         MINIMUM_AIO_SUBPAGE_LENGTH) {
> -               rc = -EINVAL;

This should be changed in 06/25.

>                 goto error;
>         }
>  

Regards
Martin






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