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On Mon, 10 Sep 2007 11:19:26 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:Even if we revert the qla1280 patch, scsi-ml still sends chaining sg list. So it doesn't work. The following patch disables chaining sg list for qla1280. If the fix that I've just sent doesn't work, please try this. - From: FUJITA Tomonori <tomof@acm.org> Subject: [PATCH] add use_sg_chaining option to scsi_host_template This option is true if a low-level driver can support sg chaining. This will be removed eventually when all the drivers are converted to support sg chaining. q->max_phys_segments is set to SCSI_MAX_SG_SEGMENTS if false. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> --- arch/ia64/hp/sim/simscsi.c | 1 + drivers/scsi/3w-9xxx.c | 1 + drivers/scsi/3w-xxxx.c | 1 + drivers/scsi/BusLogic.c | 1 + drivers/scsi/NCR53c406a.c | 3 ++- drivers/scsi/a100u2w.c | 1 + drivers/scsi/aacraid/linit.c | 1 + drivers/scsi/aha1740.c | 1 + drivers/scsi/aic7xxx/aic79xx_osm.c | 1 + drivers/scsi/aic7xxx/aic7xxx_osm.c | 1 + drivers/scsi/aic7xxx_old.c | 1 + drivers/scsi/arcmsr/arcmsr_hba.c | 1 + drivers/scsi/dc395x.c | 1 + drivers/scsi/dpt_i2o.c | 1 + drivers/scsi/eata.c | 3 ++- drivers/scsi/hosts.c | 1 + drivers/scsi/hptiop.c | 1 + drivers/scsi/ibmmca.c | 1 + drivers/scsi/ibmvscsi/ibmvscsi.c | 1 + drivers/scsi/initio.c | 1 + drivers/scsi/ipr.c | 1 + drivers/scsi/lpfc/lpfc_scsi.c | 2 ++ drivers/scsi/mac53c94.c | 1 + drivers/scsi/megaraid.c | 1 + drivers/scsi/megaraid/megaraid_mbox.c | 1 + drivers/scsi/megaraid/megaraid_sas.c | 1 + drivers/scsi/mesh.c | 1 + drivers/scsi/nsp32.c | 1 + drivers/scsi/pcmcia/sym53c500_cs.c | 1 + drivers/scsi/qla2xxx/qla_os.c | 2 ++ drivers/scsi/qla4xxx/ql4_os.c | 1 + drivers/scsi/qlogicfas.c | 1 + drivers/scsi/scsi_lib.c | 5 ++++- drivers/scsi/stex.c | 1 + drivers/scsi/sym53c416.c | 1 + drivers/scsi/sym53c8xx_2/sym_glue.c | 1 + drivers/scsi/u14-34f.c | 1 + drivers/scsi/ultrastor.c | 1 + drivers/scsi/wd7000.c | 1 + include/scsi/scsi_host.h | 13 +++++++++++++ 40 files changed, 59 insertions(+), 3 deletions(-) diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c index 4552a1c..e711657 100644 --- a/arch/ia64/hp/sim/simscsi.c +++ b/arch/ia64/hp/sim/simscsi.c @@ -360,6 +360,7 @@ static struct scsi_host_template driver_template = { .max_sectors = 1024, .cmd_per_lun = SIMSCSI_REQ_QUEUE_LEN, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int __init diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index efd9d8d..fb14014 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1990,6 +1990,7 @@ static struct scsi_host_template driver_template = { .max_sectors = TW_MAX_SECTORS, .cmd_per_lun = TW_MAX_CMDS_PER_LUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = twa_host_attrs, .emulated = 1 }; diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index c7995fc..a64153b 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -2261,6 +2261,7 @@ static struct scsi_host_template driver_template = { .max_sectors = TW_MAX_SECTORS, .cmd_per_lun = TW_MAX_CMDS_PER_LUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = tw_host_attrs, .emulated = 1 }; diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 9b20617..49e1ffa 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -3575,6 +3575,7 @@ static struct scsi_host_template Bus_Logic_template = { .unchecked_isa_dma = 1, .max_sectors = 128, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; /* diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c index eda8c48..3168a17 100644 --- a/drivers/scsi/NCR53c406a.c +++ b/drivers/scsi/NCR53c406a.c @@ -1066,7 +1066,8 @@ static struct scsi_host_template driver_template = .sg_tablesize = 32 /*SG_ALL*/ /*SG_NONE*/, .cmd_per_lun = 1 /* commands per lun */, .unchecked_isa_dma = 1 /* unchecked_isa_dma */, - .use_clustering = ENABLE_CLUSTERING + .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #include "scsi_module.c" diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index f608d4a..d3a6d15 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -1071,6 +1071,7 @@ static struct scsi_host_template inia100_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int __devinit inia100_probe_one(struct pci_dev *pdev, diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index a7f42a1..038980b 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -944,6 +944,7 @@ static struct scsi_host_template aac_driver_template = { .cmd_per_lun = AAC_NUM_IO_FIB, #endif .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .emulated = 1, }; diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index e4a4f3a..f6722fd 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c @@ -563,6 +563,7 @@ static struct scsi_host_template aha1740_template = { .sg_tablesize = AHA1740_SCATTER, .cmd_per_lun = AHA1740_CMDLUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .eh_abort_handler = aha1740_eh_abort_handler, }; diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index a055a96..42c0f14 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -766,6 +766,7 @@ struct scsi_host_template aic79xx_driver_template = { .max_sectors = 8192, .cmd_per_lun = 2, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .slave_alloc = ahd_linux_slave_alloc, .slave_configure = ahd_linux_slave_configure, .target_alloc = ahd_linux_target_alloc, diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 2e9c38f..7770bef 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -747,6 +747,7 @@ struct scsi_host_template aic7xxx_driver_template = { .max_sectors = 8192, .cmd_per_lun = 2, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .slave_alloc = ahc_linux_slave_alloc, .slave_configure = ahc_linux_slave_configure, .target_alloc = ahc_linux_target_alloc, diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c index 1a71b02..4025608 100644 --- a/drivers/scsi/aic7xxx_old.c +++ b/drivers/scsi/aic7xxx_old.c @@ -11142,6 +11142,7 @@ static struct scsi_host_template driver_template = { .max_sectors = 2048, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #include "scsi_module.c" diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 0ddfc21..d5039f3 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -121,6 +121,7 @@ static struct scsi_host_template arcmsr_scsi_host_template = { .max_sectors = ARCMSR_MAX_XFER_SECTORS, .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = arcmsr_host_attrs, }; static struct pci_error_handlers arcmsr_pci_error_handlers = { diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index 7b8a345..d2a2026 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -4765,6 +4765,7 @@ static struct scsi_host_template dc395x_driver_template = { .eh_bus_reset_handler = dc395x_eh_bus_reset, .unchecked_isa_dma = 0, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index bea9d65..8258506 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -3295,6 +3295,7 @@ static struct scsi_host_template adpt_template = { .this_id = 7, .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static s32 adpt_scsi_register(adpt_hba* pHba) diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index a83e9f1..2f685cf 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -523,7 +523,8 @@ static struct scsi_host_template driver_template = { .slave_configure = eata2x_slave_configure, .this_id = 7, .unchecked_isa_dma = 1, - .use_clustering = ENABLE_CLUSTERING + .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD) diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 96bc312..8c42539 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -342,6 +342,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) shost->unchecked_isa_dma = sht->unchecked_isa_dma; shost->use_clustering = sht->use_clustering; shost->ordered_tag = sht->ordered_tag; + shost->use_sg_chaining = sht->use_sg_chaining; if (sht->max_host_blocked) shost->max_host_blocked = sht->max_host_blocked; diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 8b384fa..8515054 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -655,6 +655,7 @@ static struct scsi_host_template driver_template = { .unchecked_isa_dma = 0, .emulated = 0, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .proc_name = driver_name, .shost_attrs = hptiop_attrs, .this_id = -1, diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c index bff8252..695941a 100644 --- a/drivers/scsi/ibmmca.c +++ b/drivers/scsi/ibmmca.c @@ -1501,6 +1501,7 @@ static struct scsi_host_template ibmmca_driver_template = { .sg_tablesize = 16, .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int ibmmca_probe(struct device *dev) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 93bd01b..084488c 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1545,6 +1545,7 @@ static struct scsi_host_template driver_template = { .this_id = -1, .sg_tablesize = SG_ALL, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = ibmvscsi_attrs, }; diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c index d9dfb69..22d40fd 100644 --- a/drivers/scsi/initio.c +++ b/drivers/scsi/initio.c @@ -2831,6 +2831,7 @@ static struct scsi_host_template initio_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int initio_probe_one(struct pci_dev *pdev, diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index b41dfb5..ba7b567 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4949,6 +4949,7 @@ static struct scsi_host_template driver_template = { .max_sectors = IPR_IOA_MAX_SECTORS, .cmd_per_lun = IPR_MAX_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = ipr_ioa_attrs, .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index cd67493..c075556 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1438,6 +1438,7 @@ struct scsi_host_template lpfc_template = { .scan_finished = lpfc_scan_finished, .this_id = -1, .sg_tablesize = LPFC_SG_SEG_CNT, + .use_sg_chaining = ENABLE_SG_CHAINING, .cmd_per_lun = LPFC_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = lpfc_hba_attrs, @@ -1460,6 +1461,7 @@ struct scsi_host_template lpfc_vport_template = { .sg_tablesize = LPFC_SG_SEG_CNT, .cmd_per_lun = LPFC_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, }; diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index b12ad7c..a035001 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -402,6 +402,7 @@ static struct scsi_host_template mac53c94_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 1, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int mac53c94_probe(struct macio_dev *mdev, const struct of_device_id *match) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 9023ec6..a0133b5 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -4484,6 +4484,7 @@ static struct scsi_host_template megaraid_template = { .sg_tablesize = MAX_SGLIST, .cmd_per_lun = DEF_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .eh_abort_handler = megaraid_abort, .eh_device_reset_handler = megaraid_reset, .eh_bus_reset_handler = megaraid_reset, diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index c6a53dc..e4e4c6a 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -361,6 +361,7 @@ static struct scsi_host_template megaraid_template_g = { .eh_host_reset_handler = megaraid_reset_handler, .change_queue_depth = megaraid_change_queue_depth, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .sdev_attrs = megaraid_sdev_attrs, .shost_attrs = megaraid_shost_attrs, }; diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index ebb948c..e3c5c52 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -1110,6 +1110,7 @@ static struct scsi_host_template megasas_template = { .eh_timed_out = megasas_reset_timer, .bios_param = megasas_bios_param, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; /** diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index 651d09b..7470ff3 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1843,6 +1843,7 @@ static struct scsi_host_template mesh_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 2, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index 4215f3b..6da1504 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -281,6 +281,7 @@ static struct scsi_host_template nsp32_template = { .cmd_per_lun = 1, .this_id = NSP32_HOST_SCSIID, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .eh_abort_handler = nsp32_eh_abort, .eh_bus_reset_handler = nsp32_eh_bus_reset, .eh_host_reset_handler = nsp32_eh_host_reset, diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index 961839e..190e2a7 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -694,6 +694,7 @@ static struct scsi_host_template sym53c500_driver_template = { .sg_tablesize = 32, .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .shost_attrs = SYM53C500_shost_attrs }; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index acca898..3abbbc0 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -132,6 +132,7 @@ struct scsi_host_template qla2x00_driver_template = { .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .sg_tablesize = SG_ALL, /* @@ -163,6 +164,7 @@ struct scsi_host_template qla24xx_driver_template = { .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 8fa5aea..89460d2 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -94,6 +94,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, diff --git a/drivers/scsi/qlogicfas.c b/drivers/scsi/qlogicfas.c index 94baca8..2268ca1 100644 --- a/drivers/scsi/qlogicfas.c +++ b/drivers/scsi/qlogicfas.c @@ -197,6 +197,7 @@ static struct scsi_host_template qlogicfas_driver_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 1, .use_clustering = DISABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static __init int qlogicfas_init(void) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index d0a1028..38eec00 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1685,7 +1685,10 @@ struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost, * converted, so better keep it safe. */ #ifdef ARCH_HAS_SG_CHAIN - blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS); + if (shost->use_sg_chaining) + blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS); + else + blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS); #else blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS); #endif diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 72f6d80..e3fab3a 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1123,6 +1123,7 @@ static struct scsi_host_template driver_template = { .this_id = -1, .sg_tablesize = ST_MAX_SG, .cmd_per_lun = ST_CMD_PER_LUN, + .use_sg_chaining = ENABLE_SG_CHAINING, }; static int stex_set_dma_mask(struct pci_dev * pdev) diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index 92bfaea..8befab7 100644 --- a/drivers/scsi/sym53c416.c +++ b/drivers/scsi/sym53c416.c @@ -854,5 +854,6 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #include "scsi_module.c" diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 764490e..7576c99 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -1827,6 +1827,7 @@ static struct scsi_host_template sym2_template = { .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, .this_id = 7, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, .max_sectors = 0xFFFF, #ifdef SYM_LINUX_PROC_INFO_SUPPORT .proc_info = sym53c8xx_proc_info, diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index 9e8232a..a0d9ef4 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -451,6 +451,7 @@ static struct scsi_host_template driver_template = { .this_id = 7, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING + .use_sg_chaining = ENABLE_SG_CHAINING, }; #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD) diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c index c08235d..ea72bbe 100644 --- a/drivers/scsi/ultrastor.c +++ b/drivers/scsi/ultrastor.c @@ -1197,5 +1197,6 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = ULTRASTOR_MAX_CMDS_PER_LUN, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #include "scsi_module.c" diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index d6fd425..255c611 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1671,6 +1671,7 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING, + .use_sg_chaining = ENABLE_SG_CHAINING, }; #include "scsi_module.c" diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 88f6871..3ee3805 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -36,6 +36,9 @@ struct blk_queue_tags; #define DISABLE_CLUSTERING 0 #define ENABLE_CLUSTERING 1 +#define DISABLE_SG_CHAINING 0 +#define ENABLE_SG_CHAINING 1 + enum scsi_eh_timer_return { EH_NOT_HANDLED, EH_HANDLED, @@ -435,6 +438,15 @@ struct scsi_host_template { unsigned ordered_tag:1; /* + * true if the low-level driver can support sg chaining. this + * will be removed eventually when all the drivers are + * converted to support sg chaining. + * + * Status: OBSOLETE + */ + unsigned use_sg_chaining:1; + + /* * Countdown for host blocking with no commands outstanding */ unsigned int max_host_blocked; @@ -577,6 +589,7 @@ struct Scsi_Host { unsigned unchecked_isa_dma:1; unsigned use_clustering:1; unsigned use_blk_tcq:1; + unsigned use_sg_chaining:1; /* * Host has requested that no further requests come through for the -- 1.5.2.4 -
| Greg KH | [GIT PATCH] driver core patches against 2.6.24 |
| Linus Torvalds | Linux 2.6.27-rc8 |
| Christoph Lameter | Re: Major regression on hackbench with SLUB (more numbers) |
| Mike Travis | Re: [RFC 00/15] x86_64: Optimize percpu accesses |
git: | |
| Gerrit Renker | [PATCH 15/37] dccp: Set per-connection CCIDs via socket options |
| Jarek Poplawski | Re: [PATCH] pkt_sched: Destroy gen estimators under rtnl_lock(). |
| David Miller | [GIT]: Networking |
| Hugh Dickins | Re: [bug?] tg3: Failed to load firmware "tigon/tg3_tso.bin" |
