[V2,3/4] scsi: implement REQ_OP_ZONE_RESET_ALL
diff mbox series

Message ID 20190801172638.4060-4-chaitanya.kulkarni@wdc.com
State New
Headers show
Series
  • block: introduce REQ_OP_ZONE_RESET_ALL
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Commit Message

Chaitanya Kulkarni Aug. 1, 2019, 5:26 p.m. UTC
This patch implements the zone reset all operation for sd_zbc.c. We add
a new boolean parameter for the sd_zbc_setup_reset_cmd() to indicate
REQ_OP_ZONE_RESET_ALL command setup. Along with that we add support in
the completion path for the zone reset all.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 drivers/scsi/sd.c     |  5 ++++-
 drivers/scsi/sd.h     |  5 +++--
 drivers/scsi/sd_zbc.c | 10 ++++++++--
 3 files changed, 15 insertions(+), 5 deletions(-)

Comments

Damien Le Moal Aug. 2, 2019, 1:07 a.m. UTC | #1
On 2019/08/02 2:27, Chaitanya Kulkarni wrote:
> This patch implements the zone reset all operation for sd_zbc.c. We add
> a new boolean parameter for the sd_zbc_setup_reset_cmd() to indicate
> REQ_OP_ZONE_RESET_ALL command setup. Along with that we add support in
> the completion path for the zone reset all.
> 
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> ---
>  drivers/scsi/sd.c     |  5 ++++-
>  drivers/scsi/sd.h     |  5 +++--
>  drivers/scsi/sd_zbc.c | 10 ++++++++--
>  3 files changed, 15 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index a3406bd62391..42ef930c4df5 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -1292,7 +1292,9 @@ static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
>  	case REQ_OP_WRITE:
>  		return sd_setup_read_write_cmnd(cmd);
>  	case REQ_OP_ZONE_RESET:
> -		return sd_zbc_setup_reset_cmnd(cmd);
> +		return sd_zbc_setup_reset_cmnd(cmd, false);
> +	case REQ_OP_ZONE_RESET_ALL:
> +		return sd_zbc_setup_reset_cmnd(cmd, true);
>  	default:
>  		WARN_ON_ONCE(1);
>  		return BLK_STS_NOTSUPP;
> @@ -1958,6 +1960,7 @@ static int sd_done(struct scsi_cmnd *SCpnt)
>  	case REQ_OP_WRITE_ZEROES:
>  	case REQ_OP_WRITE_SAME:
>  	case REQ_OP_ZONE_RESET:
> +	case REQ_OP_ZONE_RESET_ALL:
>  		if (!result) {
>  			good_bytes = blk_rq_bytes(req);
>  			scsi_set_resid(SCpnt, 0);
> diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
> index 38c50946fc42..1eab779f812b 100644
> --- a/drivers/scsi/sd.h
> +++ b/drivers/scsi/sd.h
> @@ -209,7 +209,7 @@ static inline int sd_is_zoned(struct scsi_disk *sdkp)
>  
>  extern int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buffer);
>  extern void sd_zbc_print_zones(struct scsi_disk *sdkp);
> -extern blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd);
> +extern blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd, bool all);
>  extern void sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
>  			    struct scsi_sense_hdr *sshdr);
>  extern int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
> @@ -225,7 +225,8 @@ static inline int sd_zbc_read_zones(struct scsi_disk *sdkp,
>  
>  static inline void sd_zbc_print_zones(struct scsi_disk *sdkp) {}
>  
> -static inline blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
> +static inline blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd,
> +						   bool all)
>  {
>  	return BLK_STS_TARGET;
>  }
> diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
> index db16c19e05c4..c1c7140ea787 100644
> --- a/drivers/scsi/sd_zbc.c
> +++ b/drivers/scsi/sd_zbc.c
> @@ -209,10 +209,11 @@ static inline sector_t sd_zbc_zone_sectors(struct scsi_disk *sdkp)
>  /**
>   * sd_zbc_setup_reset_cmnd - Prepare a RESET WRITE POINTER scsi command.
>   * @cmd: the command to setup
> + * @all: Reset all zones control.
>   *
>   * Called from sd_init_command() for a REQ_OP_ZONE_RESET request.
>   */
> -blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
> +blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd, bool all)
>  {
>  	struct request *rq = cmd->request;
>  	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
> @@ -234,7 +235,10 @@ blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
>  	memset(cmd->cmnd, 0, cmd->cmd_len);
>  	cmd->cmnd[0] = ZBC_OUT;
>  	cmd->cmnd[1] = ZO_RESET_WRITE_POINTER;
> -	put_unaligned_be64(block, &cmd->cmnd[2]);
> +	if (all)
> +		cmd->cmnd[14] = 0x1;
> +	else
> +		put_unaligned_be64(block, &cmd->cmnd[2]);
>  
>  	rq->timeout = SD_TIMEOUT;
>  	cmd->sc_data_direction = DMA_NONE;
> @@ -261,6 +265,7 @@ void sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
>  
>  	switch (req_op(rq)) {
>  	case REQ_OP_ZONE_RESET:
> +	case REQ_OP_ZONE_RESET_ALL:
>  
>  		if (result &&
>  		    sshdr->sense_key == ILLEGAL_REQUEST &&
> @@ -487,6 +492,7 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf)
>  	/* The drive satisfies the kernel restrictions: set it up */
>  	blk_queue_chunk_sectors(sdkp->disk->queue,
>  			logical_to_sectors(sdkp->device, zone_blocks));
> +	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, sdkp->disk->queue);
>  	nr_zones = round_up(sdkp->capacity, zone_blocks) >> ilog2(zone_blocks);
>  
>  	/* READ16/WRITE16 is mandatory for ZBC disks */
> 

Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Hannes Reinecke Aug. 2, 2019, 8:25 a.m. UTC | #2
On 8/1/19 7:26 PM, Chaitanya Kulkarni wrote:
> This patch implements the zone reset all operation for sd_zbc.c. We add
> a new boolean parameter for the sd_zbc_setup_reset_cmd() to indicate
> REQ_OP_ZONE_RESET_ALL command setup. Along with that we add support in
> the completion path for the zone reset all.
> 
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> ---
>  drivers/scsi/sd.c     |  5 ++++-
>  drivers/scsi/sd.h     |  5 +++--
>  drivers/scsi/sd_zbc.c | 10 ++++++++--
>  3 files changed, 15 insertions(+), 5 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
Martin K. Petersen Aug. 2, 2019, 2:15 p.m. UTC | #3
Chaitanya,

> This patch implements the zone reset all operation for sd_zbc.c. We
> add a new boolean parameter for the sd_zbc_setup_reset_cmd() to
> indicate REQ_OP_ZONE_RESET_ALL command setup. Along with that we add
> support in the completion path for the zone reset all.

Acked-by: Martin K. Petersen <martin.petersen@oracle.com>

Patch
diff mbox series

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a3406bd62391..42ef930c4df5 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1292,7 +1292,9 @@  static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
 	case REQ_OP_WRITE:
 		return sd_setup_read_write_cmnd(cmd);
 	case REQ_OP_ZONE_RESET:
-		return sd_zbc_setup_reset_cmnd(cmd);
+		return sd_zbc_setup_reset_cmnd(cmd, false);
+	case REQ_OP_ZONE_RESET_ALL:
+		return sd_zbc_setup_reset_cmnd(cmd, true);
 	default:
 		WARN_ON_ONCE(1);
 		return BLK_STS_NOTSUPP;
@@ -1958,6 +1960,7 @@  static int sd_done(struct scsi_cmnd *SCpnt)
 	case REQ_OP_WRITE_ZEROES:
 	case REQ_OP_WRITE_SAME:
 	case REQ_OP_ZONE_RESET:
+	case REQ_OP_ZONE_RESET_ALL:
 		if (!result) {
 			good_bytes = blk_rq_bytes(req);
 			scsi_set_resid(SCpnt, 0);
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 38c50946fc42..1eab779f812b 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -209,7 +209,7 @@  static inline int sd_is_zoned(struct scsi_disk *sdkp)
 
 extern int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buffer);
 extern void sd_zbc_print_zones(struct scsi_disk *sdkp);
-extern blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd);
+extern blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd, bool all);
 extern void sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
 			    struct scsi_sense_hdr *sshdr);
 extern int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
@@ -225,7 +225,8 @@  static inline int sd_zbc_read_zones(struct scsi_disk *sdkp,
 
 static inline void sd_zbc_print_zones(struct scsi_disk *sdkp) {}
 
-static inline blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
+static inline blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd,
+						   bool all)
 {
 	return BLK_STS_TARGET;
 }
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index db16c19e05c4..c1c7140ea787 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -209,10 +209,11 @@  static inline sector_t sd_zbc_zone_sectors(struct scsi_disk *sdkp)
 /**
  * sd_zbc_setup_reset_cmnd - Prepare a RESET WRITE POINTER scsi command.
  * @cmd: the command to setup
+ * @all: Reset all zones control.
  *
  * Called from sd_init_command() for a REQ_OP_ZONE_RESET request.
  */
-blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
+blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd, bool all)
 {
 	struct request *rq = cmd->request;
 	struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
@@ -234,7 +235,10 @@  blk_status_t sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd)
 	memset(cmd->cmnd, 0, cmd->cmd_len);
 	cmd->cmnd[0] = ZBC_OUT;
 	cmd->cmnd[1] = ZO_RESET_WRITE_POINTER;
-	put_unaligned_be64(block, &cmd->cmnd[2]);
+	if (all)
+		cmd->cmnd[14] = 0x1;
+	else
+		put_unaligned_be64(block, &cmd->cmnd[2]);
 
 	rq->timeout = SD_TIMEOUT;
 	cmd->sc_data_direction = DMA_NONE;
@@ -261,6 +265,7 @@  void sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
 
 	switch (req_op(rq)) {
 	case REQ_OP_ZONE_RESET:
+	case REQ_OP_ZONE_RESET_ALL:
 
 		if (result &&
 		    sshdr->sense_key == ILLEGAL_REQUEST &&
@@ -487,6 +492,7 @@  int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf)
 	/* The drive satisfies the kernel restrictions: set it up */
 	blk_queue_chunk_sectors(sdkp->disk->queue,
 			logical_to_sectors(sdkp->device, zone_blocks));
+	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, sdkp->disk->queue);
 	nr_zones = round_up(sdkp->capacity, zone_blocks) >> ilog2(zone_blocks);
 
 	/* READ16/WRITE16 is mandatory for ZBC disks */