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path: root/drivers/scsi
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2013-04-09atari_scsi: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09aix7xxx_old: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09ips: fix format bugs exposed by previous commitAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09ips: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09acornscsi: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09fas216: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09aic7xxx: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09aic79xx: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09in2000: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09atp870u: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09dc395x: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09dpt_i2o: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09eata_pio: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09aha1740: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09aha152x: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09advansys: fix buggered formats - unsigned long != u32 on 64bitAl Viro
asc_prt_line() had been hiding several places where formats had not matched the argument types. The previous commit has finally made them visible... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09advansys: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09nsp_cs: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09nsp32: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09BusLogic: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09scsi_debug: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09NCR5830: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09ppa: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09imm: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09gdth: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09switch wd33c93 to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09wd7000: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09sym53c8xx_2: switch to ->show_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09scsi: saner replacements for ->proc_info()Al Viro
It's still an obsolete interface; don't introduce those in new drivers. However, it's saner than the ->proc_info() and commits after this one will convert the existing ->proc_info() users to it. The read side is ->show_info(seq_file *, struct Scsi_Host *); use seq_... for generating contents. The write side is ->write_info(struct Scsi_Host *, char *, int). Again, this is driven by procfs needs; we are going to kill ->write_proc() and ->read_proc() and this is the main obstacle to burying that piece of shit. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-08virtio-scsi: reset virtqueue affinity when doing cpu hotplugWanlong Gao
Add hot cpu notifier to reset the request virtqueue affinity when doing cpu hotplug. Cc: linux-scsi@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-08virtio-scsi: introduce multiqueue supportPaolo Bonzini
This patch adds queue steering to virtio-scsi. When a target is sent multiple requests, we always drive them to the same queue so that FIFO processing order is kept. However, if a target was idle, we can choose a queue arbitrarily. In this case the queue is chosen according to the current VCPU, so the driver expects the number of request queues to be equal to the number of VCPUs. This makes it easy and fast to select the queue, and also lets the driver optimize the IRQ affinity for the virtqueues (each virtqueue's affinity is set to the CPU that "owns" the queue). The speedup comes from improving cache locality and giving CPU affinity to the virtqueues, which is why this scheme was selected. Assuming that the thread that is sending requests to the device is I/O-bound, it is likely to be sleeping at the time the ISR is executed, and thus executing the ISR on the same processor that sent the requests is cheap. However, the kernel will not execute the ISR on the "best" processor unless you explicitly set the affinity. This is because in practice you will have many such I/O-bound processes and thus many otherwise idle processors. Then the kernel will execute the ISR on a random processor, rather than the one that is sending requests to the device. The alternative to per-CPU virtqueues is per-target virtqueues. To achieve the same locality, we could dynamically choose the virtqueue's affinity based on the CPU of the last task that sent a request. This is less appealing because we do not set the affinity directly---we only provide a hint to the irqbalanced running in userspace. Dynamically changing the affinity only works if the userspace applies the hint fast enough. Cc: linux-scsi@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Tested-by: Venkatesh Srinivas <venkateshs@google.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-08virtio-scsi: push vq lock/unlock into virtscsi_vq_donePaolo Bonzini
Avoid duplicated code in all of the callers. Cc: linux-scsi@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-08virtio-scsi: pass struct virtio_scsi to virtqueue completion functionPaolo Bonzini
This will be needed soon in order to retrieve the per-target struct. Cc: linux-scsi@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-08virtio-scsi: redo allocation of target dataWanlong Gao
virtio_scsi_target_state is now empty. We will find new uses for it in the next few patches, so this patch does not drop it completely. And as James suggested, we use entries target_alloc and target_destroy in the host template to allocate and destroy the virtio_scsi_target_state of each target, attach this struct to scsi_target->hostdata. Now we can get at it from the sdev with scsi_target(sdev)->hostdata. No messing around with fixed size arrays and bulk memory allocation and no need to pass in the maximum target size as a parameter because everything should now happen dynamically. Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-06[SCSI] libsas: fix handling vacant phy in sas_set_ex_phy()Lukasz Dorau
If a result of the SMP discover function is PHY VACANT, the content of discover response structure (dr) is not valid. It sometimes happens that dr->attached_sas_addr can contain even SAS address of other phy. In such case an invalid phy is created, what causes NULL pointer dereference during destruction of expander's phys. So if a result of SMP function is PHY VACANT, the content of discover response structure (dr) must not be copied to phy structure. This patch fixes the following bug: BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 IP: [<ffffffff811c9002>] sysfs_find_dirent+0x12/0x90 Call Trace: [<ffffffff811c95f5>] sysfs_get_dirent+0x35/0x80 [<ffffffff811cb55e>] sysfs_unmerge_group+0x1e/0xb0 [<ffffffff813329f4>] dpm_sysfs_remove+0x24/0x90 [<ffffffff8132b0f4>] device_del+0x44/0x1d0 [<ffffffffa016fc59>] sas_rphy_delete+0x9/0x20 [scsi_transport_sas] [<ffffffffa01a16f6>] sas_destruct_devices+0xe6/0x110 [libsas] [<ffffffff8107ac7c>] process_one_work+0x16c/0x350 [<ffffffff8107d84a>] worker_thread+0x17a/0x410 [<ffffffff81081b76>] kthread+0x96/0xa0 [<ffffffff81464944>] kernel_thread_helper+0x4/0x10 Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com> Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com> Reviewed-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] ibmvscsi: Fix slave_configure deadlockBrian King
No locks should be held when calling scsi_adjust_queue_depth so drop the lock in slave_configure prior to calling it. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] qla2xxx: Update the driver version to 8.04.00.13-k.Saurav Kashyap
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] qla2xxx: Remove debug code that msleeps for random duration.Saurav Kashyap
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] qla2xxx: Fix crash during firmware dump procedure.Arun Easi
System crashes, in initiator mode operation, with qla2xxx_copy_atioqueues() in stack trace when firmware dump is attempted. Check for atio_q_length alone does not indicate if atio_ring is allocated, make explicit check of atio_ring to avoid the crash. Applicable to ISP24xx, ISP25xx, ISP81xx & ISP83xx line of HBAs. Signed-off-by: Arun Easi <arun.easi@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] Revert "qla2xxx: Add setting of driver version string for vendor ↵Joe Carnuccio
application." The original patch was not covering all the adapters and firmwares. This commit reverts 3a11711ad00caebee07e262d188cea66f3473c38. Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] ipr: dlpar failed when adding an adapter backwenxiong@linux.vnet.ibm.com
Reinitialize resource queue prior to freeing resource entries to ensure they are not referenced. This fixes an issue with target_destoy accessing memory after it was freed. Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] ipr: fix addition of abort command to HRRQ free queueKleber Sacilotto de Souza
The abort command issued by ipr_cancel_op() is being added to the wrong HRRQ free queue after the command returns. Fix it by using the HRRQ pointer in the ipr command struct itself. Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] st: Take additional queue ref in st_probeJoe Lawrence
This patch fixes a reference count bug in the SCSI tape driver which can be reproduced with the following: * Boot with slub_debug=FZPU, tape drive attached * echo 1 > /sys/devices/... tape device pci path .../remove * Wait for device removal * echo 1 > /sys/kernel/slab/blkdev_queue/validate * Slub debug complains about corrupted poison pattern In commit 523e1d39 (block: make gendisk hold a reference to its queue) add_disk() and disk_release() were modified to get/put an additional reference on a disk queue to fix a reference counting discrepency between bdev release and SCSI device removal. The ST driver never calls add_disk(), so this commit introduced an extra kref put when the ST driver frees its struct gendisk. Attempts were made to fix this bug at the block level [1] but later abandoned due to floppy driver issues [2]. [1] https://lkml.org/lkml/2012/8/27/354 [2] https://lkml.org/lkml/2012/9/22/113 Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Tested-by: Ewan D. Milne <emilne@redhat.com> Acked-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] libsas: use right function to alloc smp responseJohn Gong
In fact the disc_resp buffer will be overwrite by smp response, so we never found this typo, correct it by using the right one. Signed-off-by: John Gong <john_gong@usish.com> Signed-off-by: Jack Wang <jack_wang@usish.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06[SCSI] ipr: ipr_test_msi() fails when running with msi-x enabled adapterwenxiong@linux.vnet.ibm.com
Loading ipr modules failed(-22) with msi-x enabled adapter. In ipr_test_msi(), We need to pass the first vector of msix vectors instead of using pdev->irq to request_irq() when adapter enables msix feature. Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Pull net into net-next to get the synchronize_net() bug fix in bonding. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-31treewide: Fix typos in kernel messagesMasanari Iida
Correct spelling typos in various part of printk. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-28scsi: replace obsolete NLMSG_* with type safe nlmsg_*Hong zhi guo
Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25libfcoe: Fix fcoe_sysfs VN2VN modeRobert Love
The libfc discovery layer is being initialized in the 'create' paths for both legacy libfcoe module parameters and fcoe_sysfs control interfaces. The problem is that for VN2VN mode the discovery layer is initialized as if it were in 'fabric' mode and it is not re-configured when the mode is changed to 'vn2vn'. This patch splits out code that needs to be initialized once and code that can, and should be, re-configured when the mode changes. Additionally this patch makes that change so that the discovery layer can be reconfigured to the libfcoe implementation when in 'vn2vn' mode. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
2013-03-25libfc, fcoe, bnx2fc: Split fc_disc_init into fc_disc_{init, config}Robert Love
Split discovery initialization in code that is setup once (fcoe_disc_init) and code that can be re-configured (fcoe_disc_config). Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
generated by cgit (git 2.34.1) at 2025-09-26 15:54:33 +0000