From 1c8a4c37494932acd59079b4fc8d8f69fb329c2a Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 5 Mar 2010 19:37:37 -0800 Subject: [SCSI] bfa: Rename pport to fcport in BFA FCS. Rename pport structures to fcport in BFA FCS, to resolve confusion about the port structures in the firmware, and make sure the SG page is setup correctly. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_im.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/bfa/bfad_im.c') diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index f788c2a0ab07..23390b40b9c3 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -966,7 +966,7 @@ bfad_os_fc_host_init(struct bfad_im_port_s *im_port) FC_PORTSPEED_1GBIT; memset(&attr.pattr, 0, sizeof(attr.pattr)); - bfa_pport_get_attr(&bfad->bfa, &attr.pattr); + bfa_fcport_get_attr(&bfad->bfa, &attr.pattr); fc_host_maxframe_size(host) = attr.pattr.pport_cfg.maxfrsize; } -- cgit v1.2.3 From 0a4b1fc0b24fc7adbaf8413f2992ce1395991a78 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 5 Mar 2010 19:37:57 -0800 Subject: [SCSI] bfa: Replace bfa_get_attr() with specific APIs bfa_ioc_attr_s is a big structure and some times could cause stack overflow if defined locally, so add specific APIs that are needed to replace the use of ioc_attr local var. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_im.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) (limited to 'drivers/scsi/bfa/bfad_im.c') diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 23390b40b9c3..cee3d89d1412 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -167,17 +167,15 @@ bfad_im_info(struct Scsi_Host *shost) static char bfa_buf[256]; struct bfad_im_port_s *im_port = (struct bfad_im_port_s *) shost->hostdata[0]; - struct bfa_ioc_attr_s ioc_attr; struct bfad_s *bfad = im_port->bfad; + char model[BFA_ADAPTER_MODEL_NAME_LEN]; - memset(&ioc_attr, 0, sizeof(ioc_attr)); - bfa_get_attr(&bfad->bfa, &ioc_attr); + bfa_get_adapter_model(&bfad->bfa, model); memset(bfa_buf, 0, sizeof(bfa_buf)); snprintf(bfa_buf, sizeof(bfa_buf), - "Brocade FC/FCOE Adapter, " "model: %s hwpath: %s driver: %s", - ioc_attr.adapter_attr.model, bfad->pci_name, - BFAD_DRIVER_VERSION); + "Brocade FC/FCOE Adapter, " "model: %s hwpath: %s driver: %s", + model, bfad->pci_name, BFAD_DRIVER_VERSION); return bfa_buf; } @@ -931,10 +929,9 @@ bfad_os_fc_host_init(struct bfad_im_port_s *im_port) struct Scsi_Host *host = im_port->shost; struct bfad_s *bfad = im_port->bfad; struct bfad_port_s *port = im_port->port; - union attr { - struct bfa_pport_attr_s pattr; - struct bfa_ioc_attr_s ioc_attr; - } attr; + struct bfa_pport_attr_s pattr; + char model[BFA_ADAPTER_MODEL_NAME_LEN]; + char fw_ver[BFA_VERSION_LEN]; fc_host_node_name(host) = bfa_os_htonll((bfa_fcs_port_get_nwwn(port->fcs_port))); @@ -954,20 +951,18 @@ bfad_os_fc_host_init(struct bfad_im_port_s *im_port) /* For fibre channel services type 0x20 */ fc_host_supported_fc4s(host)[7] = 1; - memset(&attr.ioc_attr, 0, sizeof(attr.ioc_attr)); - bfa_get_attr(&bfad->bfa, &attr.ioc_attr); + bfa_get_adapter_model(&bfad->bfa, model); + bfa_get_adapter_fw_ver(&bfad->bfa, fw_ver); sprintf(fc_host_symbolic_name(host), "Brocade %s FV%s DV%s", - attr.ioc_attr.adapter_attr.model, - attr.ioc_attr.adapter_attr.fw_ver, BFAD_DRIVER_VERSION); + model, fw_ver, BFAD_DRIVER_VERSION); fc_host_supported_speeds(host) = 0; fc_host_supported_speeds(host) |= FC_PORTSPEED_8GBIT | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; - memset(&attr.pattr, 0, sizeof(attr.pattr)); - bfa_fcport_get_attr(&bfad->bfa, &attr.pattr); - fc_host_maxframe_size(host) = attr.pattr.pport_cfg.maxfrsize; + bfa_fcport_get_attr(&bfad->bfa, &pattr); + fc_host_maxframe_size(host) = pattr.pport_cfg.maxfrsize; } static void -- cgit v1.2.3 From 95aa060decd2472d319c3f12b0b1b699a5f35058 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 5 Mar 2010 19:38:27 -0800 Subject: [SCSI] bfa: Handle SCSI IO underrun case. When IO is completed with underrun and with good SCSI status, check if the transferred bytes against scsi_cmnd->underflow, which is set to minimum number of bytes that must be transferred for this command, if is less than required minimum, complete the IO with DID_ERROR. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_im.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/bfa/bfad_im.c') diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index cee3d89d1412..fb7aefaba129 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -43,11 +43,11 @@ bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, struct bfad_s *bfad = drv; struct bfad_itnim_data_s *itnim_data; struct bfad_itnim_s *itnim; + u8 host_status = DID_OK; switch (io_status) { case BFI_IOIM_STS_OK: bfa_trc(bfad, scsi_status); - cmnd->result = ScsiResult(DID_OK, scsi_status); scsi_set_resid(cmnd, 0); if (sns_len > 0) { @@ -56,8 +56,18 @@ bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, sns_len = SCSI_SENSE_BUFFERSIZE; memcpy(cmnd->sense_buffer, sns_info, sns_len); } - if (residue > 0) + if (residue > 0) { + bfa_trc(bfad, residue); scsi_set_resid(cmnd, residue); + if (!sns_len && (scsi_status == SAM_STAT_GOOD) && + (scsi_bufflen(cmnd) - residue) < + cmnd->underflow) { + bfa_trc(bfad, 0); + host_status = DID_ERROR; + } + } + cmnd->result = ScsiResult(host_status, scsi_status); + break; case BFI_IOIM_STS_ABORTED: -- cgit v1.2.3 From d1c61f8ef582055569de76a86fa1984f9b6698cf Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 5 Mar 2010 19:38:44 -0800 Subject: [SCSI] bfa: Remove unused header files and did some cleanup. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_im.c | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'drivers/scsi/bfa/bfad_im.c') diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index fb7aefaba129..f9fc67a25bf2 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -508,16 +508,6 @@ void bfa_fcb_itnim_tov(struct bfad_itnim_s *itnim) itnim->state = ITNIM_STATE_TIMEOUT; } -/** - * Path TOV processing begin notification -- dummy for linux - */ -void -bfa_fcb_itnim_tov_begin(struct bfad_itnim_s *itnim) -{ -} - - - /** * Allocate a Scsi_Host for a port. */ -- cgit v1.2.3 From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- drivers/scsi/bfa/bfad_im.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/scsi/bfa/bfad_im.c') diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index f9fc67a25bf2..78f42aa57369 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -19,6 +19,7 @@ * bfad_im.c Linux driver IM module. */ +#include #include "bfad_drv.h" #include "bfad_im.h" #include "bfad_trcmod.h" -- cgit v1.2.3