From 7f23e146a122966bd58e5da9c16a0e12385f09fc Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Thu, 1 Dec 2005 12:50:13 -0600 Subject: [SCSI] correct some dropped const compiler warnings Make the vendor, model and rev fields in scsi_device pointers to const and update a few prototypes of functions using them. Signed-off-by: James Bottomley --- include/scsi/scsi_device.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 85cfd88461c..063e32fe036 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -79,9 +79,9 @@ struct scsi_device { char inq_periph_qual; /* PQ from INQUIRY data */ unsigned char inquiry_len; /* valid bytes in 'inquiry' */ unsigned char * inquiry; /* INQUIRY response data */ - char * vendor; /* [back_compat] point into 'inquiry' ... */ - char * model; /* ... after scan; point to static string */ - char * rev; /* ... "nullnullnullnull" before scan */ + const char * vendor; /* [back_compat] point into 'inquiry' ... */ + const char * model; /* ... after scan; point to static string */ + const char * rev; /* ... "nullnullnullnull" before scan */ unsigned char current_tag; /* current tag */ struct scsi_target *sdev_target; /* used only for single_lun */ -- cgit v1.2.3-18-g5258 From 4e06cbd42c41f9e49fcfe5ee45c749eefaae9cf4 Mon Sep 17 00:00:00 2001 From: "Moore, Eric Dean" Date: Thu, 1 Dec 2005 16:51:02 -0700 Subject: [SCSI] pci_ids.h: add subclass code for SAS Controllers Signed-off-by: Eric Moore Signed-off-by: James Bottomley --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 1e737e269db..aa76fc4e38c 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -15,6 +15,7 @@ #define PCI_CLASS_STORAGE_FLOPPY 0x0102 #define PCI_CLASS_STORAGE_IPI 0x0103 #define PCI_CLASS_STORAGE_RAID 0x0104 +#define PCI_CLASS_STORAGE_SAS 0x0107 #define PCI_CLASS_STORAGE_OTHER 0x0180 #define PCI_BASE_CLASS_NETWORK 0x02 -- cgit v1.2.3-18-g5258 From 829b84675edbe05f11c289946216da4f5c6b8e94 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Tue, 13 Dec 2005 10:29:31 -0700 Subject: [SCSI] Make scsi_transport_spi.h includable by itself Add forward declarations to allow scsi_transport_spi.h to be compiled by itself. Signed-off-by: Matthew Wilcox Signed-off-by: James Bottomley --- include/scsi/scsi_transport_spi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h index 6bdc4afb248..5c9b2e56e5b 100644 --- a/include/scsi/scsi_transport_spi.h +++ b/include/scsi/scsi_transport_spi.h @@ -24,6 +24,9 @@ #include struct scsi_transport_template; +struct scsi_target; +struct scsi_device; +struct Scsi_Host; struct spi_transport_attrs { int period; /* value in the PPR/SDTR command */ -- cgit v1.2.3-18-g5258 From 6e39b69e7ea9205c5f80aeac3ef999ab8fb1a4cc Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Nov 2005 05:30:24 -0600 Subject: [SCSI] export blk layer functions needed for blk_execute_rq_nowait To send async requests we need these two functions exported. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/linux/blkdev.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a33a31e71bb..9a68716dcf7 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -558,6 +558,7 @@ extern void blk_unregister_queue(struct gendisk *disk); extern void register_disk(struct gendisk *dev); extern void generic_make_request(struct bio *bio); extern void blk_put_request(struct request *); +extern void __blk_put_request(request_queue_t *, struct request *); extern void blk_end_sync_rq(struct request *rq); extern void blk_attempt_remerge(request_queue_t *, struct request *); extern struct request *blk_get_request(request_queue_t *, int, gfp_t); @@ -579,6 +580,10 @@ extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned extern int blk_rq_map_user_iov(request_queue_t *, struct request *, struct sg_iovec *, int); extern int blk_execute_rq(request_queue_t *, struct gendisk *, struct request *, int); +extern void blk_execute_rq_nowait(request_queue_t *, struct gendisk *, + struct request *, int, + void (*done)(struct request *)); + static inline request_queue_t *bdev_get_queue(struct block_device *bdev) { return bdev->bd_disk->queue; -- cgit v1.2.3-18-g5258 From 6e68af666f5336254b5715dca591026b7324499a Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Nov 2005 05:30:27 -0600 Subject: [SCSI] Convert SCSI mid-layer to scsi_execute_async Add scsi helpers to create really-large-requests and convert scsi-ml to scsi_execute_async(). Per Jens's previous comments, I placed this function in scsi_lib.c. I made it follow all the queue's limits - I think I did at least :), so I removed the warning on the function header. I think the scsi_execute_* functions should eventually take a request_queue and be placed some place where the dm-multipath hw_handler can use them if that failover code is going to stay in the kernel. That conversion patch will be sent in another mail though. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/linux/bio.h | 2 ++ include/scsi/scsi_device.h | 6 ++++++ 2 files changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/bio.h b/include/linux/bio.h index 685fd3720df..b60ffe32cd2 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -292,6 +292,8 @@ extern struct bio *bio_clone(struct bio *, gfp_t); extern void bio_init(struct bio *); extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); +extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, + unsigned int, unsigned int); extern int bio_get_nr_vecs(struct block_device *); extern struct bio *bio_map_user(struct request_queue *, struct block_device *, unsigned long, unsigned int, int); diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 063e32fe036..e94ca4d3603 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -274,6 +274,12 @@ extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, struct scsi_sense_hdr *, int timeout, int retries); +extern int scsi_execute_async(struct scsi_device *sdev, + const unsigned char *cmd, int data_direction, + void *buffer, unsigned bufflen, int use_sg, + int timeout, int retries, void *privdata, + void (*done)(void *, char *, int, int), + gfp_t gfp); static inline unsigned int sdev_channel(struct scsi_device *sdev) { -- cgit v1.2.3-18-g5258 From 17e01f216b611fc46956dcd9063aec4de75991e3 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Nov 2005 05:31:37 -0600 Subject: [SCSI] add retries field to request for REQ_BLOCK_PC use For tape we need to control the retries. This patch adds a retries counter on the request for REQ_BLOCK_PC commands originating from scsi_execute* to use. REQ_BLOCK_PC commands comming from the block layer SG_IO path continue to use the retires set in the ULD init_command. (scsi_execute* does not set the gendisk so we do not execute the init_command in that path). Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/linux/blkdev.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 9a68716dcf7..509e9a03a32 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -184,6 +184,7 @@ struct request { void *sense; unsigned int timeout; + int retries; /* * For Power Management requests -- cgit v1.2.3-18-g5258 From defd94b75409b983f94548ea2f52ff5787ddb848 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 5 Dec 2005 02:37:06 -0600 Subject: [SCSI] seperate max_sectors from max_hw_sectors - export __blk_put_request and blk_execute_rq_nowait needed for async REQ_BLOCK_PC requests - seperate max_hw_sectors and max_sectors for block/scsi_ioctl.c and SG_IO bio.c helpers per Jens's last comments. Since block/scsi_ioctl.c SG_IO was already testing against max_sectors and SCSI-ml was setting max_sectors and max_hw_sectors to the same value this does not change any scsi SG_IO behavior. It only prepares ll_rw_blk.c, scsi_ioctl.c and bio.c for when SCSI-ml begins to set a valid max_hw_sectors for all LLDs. Today if a LLD does not set it SCSI-ml sets it to a safe default and some LLDs set it to a artificial low value to overcome memory and feedback issues. Note: Since we now cap max_sectors to BLK_DEF_MAX_SECTORS, which is 1024, drivers that used to call blk_queue_max_sectors with a large value of max_sectors will now see the fs requests capped to BLK_DEF_MAX_SECTORS. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/linux/blkdev.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 509e9a03a32..a18500d196e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -702,7 +702,8 @@ extern int blkdev_issue_flush(struct block_device *, sector_t *); #define MAX_PHYS_SEGMENTS 128 #define MAX_HW_SEGMENTS 128 -#define MAX_SECTORS 255 +#define SAFE_MAX_SECTORS 255 +#define BLK_DEF_MAX_SECTORS 1024 #define MAX_SEGMENT_SIZE 65536 -- cgit v1.2.3-18-g5258 From 7b16318dea8d9840dac567a2ae8c50ecdea36aea Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Thu, 15 Dec 2005 20:17:02 -0600 Subject: Fix up SCSI mismerge I forgot to do a git-update-cache on the merged files ... --- include/scsi/scsi_cmnd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 20da282d4ab..41cfc29be89 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -151,6 +151,6 @@ extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); extern void scsi_put_command(struct scsi_cmnd *); extern void scsi_io_completion(struct scsi_cmnd *, unsigned int, unsigned int); extern void scsi_finish_command(struct scsi_cmnd *cmd); -extern void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd, int retries); +extern void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd); #endif /* _SCSI_SCSI_CMND_H */ -- cgit v1.2.3-18-g5258 From 1abfd370134553f3b47e3e40a0526e05001409c2 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 15 Dec 2005 16:22:01 -0500 Subject: [SCSI] Rename scsi_print_msg to spi_print_msg Rename scsi_print_msg to spi_print_msg and move its prototype from scsi_dbg.h to scsi_transport_spi.h Signed-off-by: Matthew Wilcox Signed-off-by: James Bottomley --- include/scsi/scsi_dbg.h | 1 - include/scsi/scsi_transport_spi.h | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index b090a11d7e1..4d69dee66d4 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -16,7 +16,6 @@ extern void __scsi_print_sense(const char *name, extern void scsi_print_driverbyte(int); extern void scsi_print_hostbyte(int); extern void scsi_print_status(unsigned char); -extern int scsi_print_msg(const unsigned char *); extern const char *scsi_sense_key_string(unsigned char); extern const char *scsi_extd_sense_format(unsigned char, unsigned char); diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h index 5c9b2e56e5b..54a89611e9c 100644 --- a/include/scsi/scsi_transport_spi.h +++ b/include/scsi/scsi_transport_spi.h @@ -146,5 +146,6 @@ void spi_release_transport(struct scsi_transport_template *); void spi_schedule_dv_device(struct scsi_device *); void spi_dv_device(struct scsi_device *); void spi_display_xfer_agreement(struct scsi_target *); +int spi_print_msg(const unsigned char *); #endif /* SCSI_TRANSPORT_SPI_H */ -- cgit v1.2.3-18-g5258