aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/infiniband
Commit message (Collapse)AuthorAge
* IB/ehca: Support small QP queuesStefan Roscher2007-07-21
| | | | | | | | | | | eHCA2 supports QP queues that can be as small as 512 bytes. This greatly reduces memory overhead for consumers that use lots of QPs with small queues (e.g. RDMA-only QPs). Apart from dealing with firmware, this code needs to manage bite-sized chunks of kernel pages, making sure that no kernel page is shared between different protection domains. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
* IB/ehca: Make internal_create/destroy_qp() staticJoachim Fenkes2007-07-21
| | | | | | | They're only used in ehca_qp.c, so make them static to that file. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Move ehca2ib_return_code() out of lineHoang-Nam Nguyen2007-07-21
| | | | | | | | ehca2ib_return_code() is not used in any fast path, and making it non-inline saves ~1.5K of code. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Generate async event when SRQ limit reachedHoang-Nam Nguyen2007-07-21
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Support large page MRsHoang-Nam Nguyen2007-07-21
| | | | | | | | | | | Add support for MR pages larger than 4K on eHCA2. This reduces firmware memory consumption. If enabled via the mr_largepage module parameter, the MR page size will be determined based on the MR length and the hardware capabilities -- if the MR is >= 16M, 16M pages are used, for example. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix error path in create_qp_common()Roland Dreier2007-07-21
| | | | | | | | | | | | The error handling code at err_wrid in create_qp_common() does not handle a userspace QP attached to an SRQ correctly, since it ends up in the else clause of the if statement. This means it tries to kfree() the uninitialized qp->sq.wrid and qp->rq.wrid pointers. Fix this so we only free the wrid arrays for kernel QPs. Pointed out by Michael S. Tsirkin <mst@dev.mellanox.co.il>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Change command token on timeoutMichael S. Tsirkin2007-07-21
| | | | | | | | | | The FW command token is currently only updated on a command completion event. This means that on command timeout, the same token will be reused for new command, which results in a mess if the timed out command *does* eventually complete. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove ipath_layer dead codeArthur Jones2007-07-21
| | | | | | | | | | | | | | | The ipath_layer.[ch] code was an attempt to provide a single interface for the ipath verbs and ipath_ether code to use. As verbs functionality increased, the layer's functionality became insufficient and the verbs code broke away to interface directly to the driver. The failed attempt to get ipath_ether upstream was the final nail in the coffin and now it sits quietly in a dark kernel.org corner waiting for someone to notice the smell and send it along to it's final resting place. Roland Dreier was that someone -- this patch expands on his work... Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix leaks in __mlx4_ib_modify_qpFlorin Malita2007-07-21
| | | | | | | | | | | Temporarily allocated struct mlx4_qp_context *context is leaked by several error paths. The patch takes advantage of the return value 'err' being preinitialized to -EINVAL. Spotted by Coverity (CID 1768). Signed-off-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mm: Remove slab destructors from kmem_cache_create().Paul Mundt2007-07-19
| | | | | | | | | | | | | | Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* some kmalloc/memset ->kzalloc (tree wide)Yoann Padioleau2007-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* IB/mthca: Simplify use of size0 in work request postingRoland Dreier2007-07-18
| | | | | | | | | | | | | | | Current code sets size0 to 0 at the start of work request posting functions and then handles size0 == 0 specially within the loop over work requests. Change this so size0 is set along with f0 the first time through the loop (when nreq == 0). This makes the code easier to understand by making it clearer that f0 and size0 are always initialized if nreq != 0 without having to know that size0 == 0 implies nreq == 0. Also annotate size0 with uninitialized_var() so that this doesn't introduce a new compiler warning. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Factor out setting WQE UD segment entriesRoland Dreier2007-07-18
| | | | | | | | | Factor code to set UD entries out of the work request posting functions into inline functions set_tavor_ud_seg() and set_arbel_ud_seg(). This doesn't change the generated code in any significant way, and makes the source easier on the eyes. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Factor out setting WQE remote address and atomic segment entriesRoland Dreier2007-07-18
| | | | | | | | | Factor code to set remote address and atomic segment entries out of the work request posting functions into inline functions set_raddr_seg() and set_atomic_seg(). This doesn't change the generated code in any significant way, and makes the source easier on the eyes. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Factor out setting other WQE segmentsRoland Dreier2007-07-18
| | | | | | | | | Factor code to set remote address, atomic and datagram segments out of mlx4_ib_post_send() into small helper functions. This doesn't change the generated code in any significant way, and makes the source easier on the eyes. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Factor out setting WQE data segment entriesRoland Dreier2007-07-18
| | | | | | | | | | | | Factor code to set data segment entries out of mlx4_ib_post_send() into set_data_seg(). This cleans up the code and lets the compiler do a better job -- on x86_64: add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-16 (-16) function old new delta mlx4_ib_post_send 1598 1582 -16 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Factor out setting WQE data segment entriesRoland Dreier2007-07-18
| | | | | | | | | | | | | | | | | | Factor code to set data segment entries out of the work request posting functions into inline functions mthca_set_data_seg() and mthca_set_data_seg_inval(). This makes the code more readable and also allows the compiler to do a better job -- on x86_64: add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-69 (-69) function old new delta mthca_arbel_post_srq_recv 373 369 -4 mthca_arbel_post_receive 570 562 -8 mthca_tavor_post_srq_recv 520 508 -12 mthca_tavor_post_send 1344 1330 -14 mthca_arbel_post_send 1481 1467 -14 mthca_tavor_post_receive 792 775 -17 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Return receive queue sizes for userspace QPs from query QPRoland Dreier2007-07-17
| | | | | | | | | | Return the receive queue sizes for both userspace QPs and kernel Qps (not just kernel QPs) from mlx4_ib_query_qp(). Also zero the send queue sizes for userspace QPs to avoid a possible information leak, and set the max_inline_data for kernel QPs to 0 since inline sends are not supported for kernel QPs. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Remove local write permission from QP access flagsDotan Barak2007-07-17
| | | | | | | | | | | | Local write permission makes no sense as part of the QP access flags, since the access flags only control what the remote end of the connection is allowed to do. Remove the code in the RDMA CM that initializes qp_access_flags with IB_ACCESS_LOCAL_WRITE. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Acked-by: Sean Hefty <sean.hefty@intel.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Use uninitialized_var() for f0Roland Dreier2007-07-17
| | | | | | | | | | | | | | | | | Commit 9db48926 ("drivers/infiniband/hw/mthca/mthca_qp: kill uninit'd var warning") added "= 0" to the declarations of f0 to shut up gcc warnings. However, there's no point in making the code bigger by initializing f0 to a random value just to get rid of a warning; setting f0 to 0 is no safer than just using uninitialized_var(), which documents the situation better and gives smaller code too. For example, on x86_64: add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-16 (-16) function old new delta mthca_tavor_post_send 1352 1344 -8 mthca_arbel_post_send 1489 1481 -8 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/cm: Make internal function cm_get_ack_delay() staticRoland Dreier2007-07-17
| | | | Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove ipath_get_user_pages_nocopy()Roland Dreier2007-07-17
| | | | | | It has no callers and is completely dead code. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Make a few functions staticRoland Dreier2007-07-17
| | | | | | | | | | | | | | | | | Make some functions that are only used in a single .c file static. In addition to being a cleanup, this shrinks the generated code. On x86_64: add/remove: 1/3 grow/shrink: 2/1 up/down: 4777/-4956 (-179) function old new delta handle_errors - 3994 +3994 __verbs_timer 42 710 +668 ipath_do_ruc_send 2131 2246 +115 ipath_no_bufs_available 136 - -136 ipath_disarm_senderrbufs 639 - -639 ipath_ib_timer 658 - -658 ipath_intr 5878 2355 -3523 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/iser: Make a couple of functions staticRoland Dreier2007-07-17
| | | | | | | | | | | | | | | Make iser_conn_release() and iser_start_rdma_unaligned_sg() static, since they are only used in the .c file where they are defined. In addition to being a cleanup, this even shrinks the generated code by allowing the single call of iser_start_rdma_unaligned_sg() to be inlined into its callsite. On x86_64: add/remove: 0/1 grow/shrink: 1/0 up/down: 466/-533 (-67) function old new delta iser_reg_rdma_mem 1518 1984 +466 iser_start_rdma_unaligned_sg 533 - -533 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Fix printk format used for firmware version in warningRoland Dreier2007-07-17
| | | | | | | | | | | | When warning about out-of-date firmware, current mthca code messes up the formatting of the version if the subminor doesn't have three digits. It doesn't fill the field with 0s so we end up with: ib_mthca 0000:0b:00.0: HCA FW version 1.1. 0 is old (1.2. 0 is current). Change the format from "%3d" to "%03d" to get the right thing printed. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Schedule MSI support for removalRoland Dreier2007-07-17
| | | | | | | | | | The mthca driver supports both MSI and MSI-X. However, MSI-X works with all hardware that the driver handles, and provides a superset of what MSI does, so there's no point in having code for both. Schedule MSI support for removal in 2008 to give anyone who actually needs MSI and who can't use MSI time to speak up. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix warnings issued by checkpatch.plHoang-Nam Nguyen2007-07-17
| | | | | | | | Run the existing ehca code through checkpatch.pl and clean up the worst of the coding style violations. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Restructure ehca_set_pagebuf()Hoang-Nam Nguyen2007-07-17
| | | | | | | | Split ehca_set_pagebuf() into three functions depending on MR type (phys/user/fast) and remove superfluous ehca_set_pagebuf_1(). Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: MR/MW structure refactoringHoang-Nam Nguyen2007-07-17
| | | | | | | | | | - Rename struct ehca_mr fields to clearly distinguish between kernel and HW page size. - Sort struct ehca_mr_pginfo into a common part and a union containing specific fields for physical, user and fast MR Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use macro to calculate number of chunks in a mem blockHoang-Nam Nguyen2007-07-17
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use #define for "pages per register_rpage" instead of hardcoded valueHoang-Nam Nguyen2007-07-17
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use common error code mapping instead of specific onesHoang-Nam Nguyen2007-07-17
| | | | | | | | | Instead of one error mapping function for each potential error source in ehca_mrmw.c, use a centralized function that handles all cases, saving a three-figure line count. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix memory leak in error path of ehca_get_dma_mr()Hoang-Nam Nguyen2007-07-17
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix HW level autodetectionJoachim Fenkes2007-07-17
| | | | | | | | Autodetection was missing a few HW revisions, causing certain eHCA1 revisions to be treated like eHCA2. Fixed. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Take sizeof the correct pointer in call to memset()Dotan Barak2007-07-17
| | | | | | | | | | | When clearing the ib_ah_attr parameter in to_ib_ah_attr(), use sizeof *ib_ah_attr instead of sizeof *path. This is the same bug as was fixed for mthca in 99d4f22e ("IB/mthca: Use correct structure size in call to memset()"), but the code was cut and pasted into mlx4 before the fix was merged. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix port returned from query QP for QPs in INIT stateJack Morgenstein2007-07-17
| | | | | | | | | | | | When a QP is in the INIT state, the sched_queue field hasn't been given to the firmware yet, so the firmware cannot return the value when the QP is queried. To handle this, use the port number that is saved in the driver's QP data structure. Found by Dotan Barak and Yaron Gepstein of Mellanox. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix flow label returned from query QPJack Morgenstein2007-07-17
| | | | | | | | | | Correct the mask used to get the flow label, since the field is 20 bits, not 24 bits. Found by Dotan Barak and Yaron Gepstein of Mellanox. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Remove cm_id reference on listen failuresSteve Wise2007-07-17
| | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* drivers/infiniband/hw/mthca/mthca_qp: kill uninit'd var warningJeff Garzik2007-07-17
| | | | | | | | | | | | | | | | | | | drivers/infiniband/hw/mthca/mthca_qp.c: In function ‘mthca_tavor_post_send’: drivers/infiniband/hw/mthca/mthca_qp.c:1594: warning: ‘f0’ may be used uninitialized in this function drivers/infiniband/hw/mthca/mthca_qp.c: In function ‘mthca_arbel_post_send’: drivers/infiniband/hw/mthca/mthca_qp.c:1949: warning: ‘f0’ may be used uninitialized in this function Initializing 'f0' is not strictly necessary in either case, AFAICS. I was considering use of uninitialized_var(), but looking at the complex flow of control in each function, I feel it is wiser and safer to simply zero the var and be certain of ourselves. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2007-07-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (166 commits) [SCSI] ibmvscsi: convert to use the data buffer accessors [SCSI] dc395x: convert to use the data buffer accessors [SCSI] ncr53c8xx: convert to use the data buffer accessors [SCSI] sym53c8xx: convert to use the data buffer accessors [SCSI] ppa: coding police and printk levels [SCSI] aic7xxx_old: remove redundant GFP_ATOMIC from kmalloc [SCSI] i2o: remove redundant GFP_ATOMIC from kmalloc from device.c [SCSI] remove the dead CYBERSTORMIII_SCSI option [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA [SCSI] Clean up scsi_add_lun a bit [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs [SCSI] sni_53c710: Cleanup [SCSI] qla4xxx: Fix underrun/overrun conditions [SCSI] megaraid_mbox: use mutex instead of semaphore [SCSI] aacraid: add 51245, 51645 and 52245 adapters to documentation. [SCSI] qla2xxx: update version to 8.02.00-k1. [SCSI] qla2xxx: add support for NPIV [SCSI] stex: use resid for xfer len information [SCSI] Add Brownie 1200U3P to blacklist [SCSI] scsi.c: convert to use the data buffer accessors ...
| * [SCSI] iscsi_iser: convert to use the data buffer accessorsFUJITA Tomonori2007-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iscsi_iser: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. TODO: use scsi_for_each_sg(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] ib_srp: convert to use the data buffer accessorsFUJITA Tomonori2007-06-07
| | | | | | | | | | | | | | | | | | | | | | | | | | - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] iscsi class, iscsi_tcp, iser, qla4xxx: add netdevname sysfs attrMike Christie2007-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iSCSI must support software iscsi (iscsi_tcp, iser), hardware iscsi (qla4xxx), and partial offload (broadcom). To be able to allow each stack or driver or port (virtual or physical) to be able to log into the same target portal we use the initiator tuple [[HWADDRESS | NETDEVNAME], INITIATOR_NAME] and the target tuple [TARGETNAME, CONN_ADDRESS, CONN_PORT] to id a session. This patch adds the netdev name, which is used by software iscsi when it binds a session to a netdevice using the SO_BINDTODEVICE sock opt. It cannot use HWADDRESS because if someone did vlans then the same netdevice will have the same mac and the initiator,target id will not be unique. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Cc: David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] libiscsi: make can_queue configurableMike Christie2007-06-02
| | | | | | | | | | | | | | | | | | | | | | | | This patch allows us to set can_queue and cmds_per_lun from userspace when we create the session/host. From there we can set it on a per target basis. The patch fully converts iscsi_tcp, but only hooks up ib_iser for cmd_per_lun since it currently has a lots of preallocations based on can_queue. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] libiscsi: fix iscsi cmdsn allocationMike Christie2007-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cmdsn allocation and pdu transmit code can race, and we can end up sending a pdu with cmdsn 10 before a pdu with 5. The target will then fail the connection/session. This patch fixes the problem by delaying the cmdsn allocation until we are about to send the pdu. This also removes the xmitmutex. We were using the connection xmitmutex during error handling to handle races with mtask and ctask cleanup and completion. For ctasks we now have nice refcounting and for the mtask, if we hit the case where the mtask timesout and it is floating around somewhere in the driver, we end up dropping the session. And to handle session level cleanup, we use the xmit suspend bit along with scsi_flush_queue and the session lock to make sure that the xmit thread is not possibly transmitting a task while we are trying to kill it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] iscsi class, iscsi_tcp, ib_iser: add sysfs chap fileMike Christie2007-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patches add sysfs files for the chap settings to the iscsi transport class, iscsi_tcp and ib_iser. This is needed for software iscsi because there are times when iscsid can die and it will need to reread the values it was using. And it is needed by qla4xxx for basic management opertaions. This patch does not hook in qla4xxx yet, because I am not sure the mbx command to use. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] iscsi: Some fixes in preparation for bidirectional support - total_lengthMike Christie2007-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | - Remove shadow of request length from struct iscsi_cmd_task. - change all users to use scsi_cmnd->request_bufflen directly (With bidi we will use scsi-ml API to retrieve in/out length) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] iscsi class, qla4xxx, iscsi_tcp, ib_iser: export/set initiator nameMike Christie2007-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For iscsi root boot, software iscsi needs to know what the BIOS/OF initiator used for the initiator name so this puts it in sysfs for userspace to be able to pick up. For hw iscsi, it is nice to see what the card is using. This patch adds the new param, and hooks in qla4xxx, iscsi_tcp, and ib_iser. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Cc: David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] libiscsi, iscsi_tcp, ib_iser : add sw iscsi host get/set params helpersMike Christie2007-06-01
| | | | | | | | | | | | | | | | | | | | | | iscsid and udev need to key off the hw address being used so add some helpers for iser and iscsi tcp. Also convert them Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-07-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (76 commits) IB: Update MAINTAINERS with Hal's new email address IB/mlx4: Implement query SRQ IB/mlx4: Implement query QP IB/cm: Send no match if a SIDR REQ does not match a listen IB/cm: Fix handling of duplicate SIDR REQs IB/cm: cm_msgs.h should include ib_cm.h IB/cm: Include HCA ACK delay in local ACK timeout IB/cm: Use spin_lock_irq() instead of spin_lock_irqsave() when possible IB/sa: Make sure SA queries use default P_Key IPoIB: Recycle loopback skbs instead of freeing and reallocating IB/mthca: Replace memset(<addr>, 0, PAGE_SIZE) with clear_page(<addr>) IPoIB/cm: Fix warning if IPV6 is not enabled IB/core: Take sizeof the correct pointer when calling kmalloc() IB/ehca: Improve latency by unlocking after triggering the hardware IB/ehca: Notify consumers of LID/PKEY/SM changes after nondisruptive events IB/ehca: Return QP pointer in poll_cq() IB/ehca: Change idr spinlocks into rwlocks IB/ehca: Refactor sync between completions and destroy_cq using atomic_t IB/ehca: Lock renaming, static initializers IB/ehca: Report RDMA atomic attributes in query_qp() ...
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-07 18:32:46 -0500