From 5115fc7e2e6be8e082a9ff996cb9f343b0e850fe Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 3 Mar 2016 07:54:08 +0100 Subject: scsi_dh_alua: use common definitions for ALUA state scsi_proto.h now contains definitions for the ALUA state, so we don't have to carry them in the device handler. Signed-off-by: Hannes Reinecke Reviewed-by: Bart van Assche Reviewed-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/device_handler/scsi_dh_alua.c | 58 +++++++++++++----------------- 1 file changed, 25 insertions(+), 33 deletions(-) (limited to 'drivers/scsi/device_handler') diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 9a7657efcf52..19f653930f7c 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -31,14 +31,6 @@ #define ALUA_DH_NAME "alua" #define ALUA_DH_VER "2.0" -#define TPGS_STATE_OPTIMIZED 0x0 -#define TPGS_STATE_NONOPTIMIZED 0x1 -#define TPGS_STATE_STANDBY 0x2 -#define TPGS_STATE_UNAVAILABLE 0x3 -#define TPGS_STATE_LBA_DEPENDENT 0x4 -#define TPGS_STATE_OFFLINE 0xe -#define TPGS_STATE_TRANSITIONING 0xf - #define TPGS_SUPPORT_NONE 0x00 #define TPGS_SUPPORT_OPTIMIZED 0x01 #define TPGS_SUPPORT_NONOPTIMIZED 0x02 @@ -180,7 +172,7 @@ static int submit_stpg(struct scsi_device *sdev, int group_id, /* Prepare the data buffer */ memset(stpg_data, 0, stpg_len); - stpg_data[4] = TPGS_STATE_OPTIMIZED & 0x0f; + stpg_data[4] = SCSI_ACCESS_STATE_OPTIMAL; put_unaligned_be16(group_id, &stpg_data[6]); /* Prepare the command. */ @@ -248,7 +240,7 @@ struct alua_port_group *alua_alloc_pg(struct scsi_device *sdev, } pg->group_id = group_id; pg->tpgs = tpgs; - pg->state = TPGS_STATE_OPTIMIZED; + pg->state = SCSI_ACCESS_STATE_OPTIMAL; if (optimize_stpg) pg->flags |= ALUA_OPTIMIZE_STPG; kref_init(&pg->kref); @@ -378,22 +370,22 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h, return SCSI_DH_OK; } -static char print_alua_state(int state) +static char print_alua_state(unsigned char state) { switch (state) { - case TPGS_STATE_OPTIMIZED: + case SCSI_ACCESS_STATE_OPTIMAL: return 'A'; - case TPGS_STATE_NONOPTIMIZED: + case SCSI_ACCESS_STATE_ACTIVE: return 'N'; - case TPGS_STATE_STANDBY: + case SCSI_ACCESS_STATE_STANDBY: return 'S'; - case TPGS_STATE_UNAVAILABLE: + case SCSI_ACCESS_STATE_UNAVAILABLE: return 'U'; - case TPGS_STATE_LBA_DEPENDENT: + case SCSI_ACCESS_STATE_LBA: return 'L'; - case TPGS_STATE_OFFLINE: + case SCSI_ACCESS_STATE_OFFLINE: return 'O'; - case TPGS_STATE_TRANSITIONING: + case SCSI_ACCESS_STATE_TRANSITIONING: return 'T'; default: return 'X'; @@ -647,7 +639,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg) valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a'); switch (pg->state) { - case TPGS_STATE_TRANSITIONING: + case SCSI_ACCESS_STATE_TRANSITIONING: if (time_before(jiffies, pg->expiry)) { /* State transition, retry */ pg->interval = 2; @@ -655,11 +647,11 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg) } else { /* Transitioning time exceeded, set port to standby */ err = SCSI_DH_IO; - pg->state = TPGS_STATE_STANDBY; + pg->state = SCSI_ACCESS_STATE_STANDBY; pg->expiry = 0; } break; - case TPGS_STATE_OFFLINE: + case SCSI_ACCESS_STATE_OFFLINE: /* Path unusable */ err = SCSI_DH_DEV_OFFLINED; pg->expiry = 0; @@ -693,20 +685,20 @@ static unsigned alua_stpg(struct scsi_device *sdev, struct alua_port_group *pg) return SCSI_DH_RETRY; } switch (pg->state) { - case TPGS_STATE_OPTIMIZED: + case SCSI_ACCESS_STATE_OPTIMAL: return SCSI_DH_OK; - case TPGS_STATE_NONOPTIMIZED: + case SCSI_ACCESS_STATE_ACTIVE: if ((pg->flags & ALUA_OPTIMIZE_STPG) && !pg->pref && (pg->tpgs & TPGS_MODE_IMPLICIT)) return SCSI_DH_OK; break; - case TPGS_STATE_STANDBY: - case TPGS_STATE_UNAVAILABLE: + case SCSI_ACCESS_STATE_STANDBY: + case SCSI_ACCESS_STATE_UNAVAILABLE: break; - case TPGS_STATE_OFFLINE: + case SCSI_ACCESS_STATE_OFFLINE: return SCSI_DH_IO; - case TPGS_STATE_TRANSITIONING: + case SCSI_ACCESS_STATE_TRANSITIONING: break; default: sdev_printk(KERN_INFO, sdev, @@ -760,7 +752,7 @@ static void alua_rtpg_work(struct work_struct *work) pg->flags &= ~ALUA_PG_RUN_RTPG; spin_unlock_irqrestore(&pg->lock, flags); - if (state == TPGS_STATE_TRANSITIONING) { + if (state == SCSI_ACCESS_STATE_TRANSITIONING) { if (alua_tur(sdev) == SCSI_DH_RETRY) { spin_lock_irqsave(&pg->lock, flags); pg->flags &= ~ALUA_PG_RUNNING; @@ -1006,7 +998,7 @@ static int alua_prep_fn(struct scsi_device *sdev, struct request *req) { struct alua_dh_data *h = sdev->handler_data; struct alua_port_group __rcu *pg; - int state = TPGS_STATE_OPTIMIZED; + unsigned char state = SCSI_ACCESS_STATE_OPTIMAL; int ret = BLKPREP_OK; rcu_read_lock(); @@ -1014,11 +1006,11 @@ static int alua_prep_fn(struct scsi_device *sdev, struct request *req) if (pg) state = pg->state; rcu_read_unlock(); - if (state == TPGS_STATE_TRANSITIONING) + if (state == SCSI_ACCESS_STATE_TRANSITIONING) ret = BLKPREP_DEFER; - else if (state != TPGS_STATE_OPTIMIZED && - state != TPGS_STATE_NONOPTIMIZED && - state != TPGS_STATE_LBA_DEPENDENT) { + else if (state != SCSI_ACCESS_STATE_OPTIMAL && + state != SCSI_ACCESS_STATE_ACTIVE && + state != SCSI_ACCESS_STATE_LBA) { ret = BLKPREP_KILL; req->cmd_flags |= REQ_QUIET; } -- cgit v1.2.3