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* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-138-9/+55
|\ | | | | | | | | | | | | | | | | | | | | | | | | 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: RDMA/nes: Fix CX4 link problem in back-to-back configuration RDMA/nes: Clear stall bit before destroying NIC QP RDMA/nes: Set assume_aligned_header bit RDMA/cxgb3: Wait at least one schedule cycle during device removal IB/mad: Ignore iWARP devices on device removal IPoIB: Include return code in trace message for ib_post_send() failures IPoIB: Fix TX queue lockup with mixed UD/CM traffic
| *---. Merge branches 'cxgb3', 'ipoib', 'misc' and 'nes' into for-nextRoland Dreier2010-03-127-9/+53
| |\ \ \
| | | | * RDMA/nes: Fix CX4 link problem in back-to-back configurationChien Tung2010-03-121-2/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 09124e19 ("RDMA/nes: Add support for KR device id 0x0110") took out too much code and broke CX4 link detection in back-to-back configuration. Put back the code that does the link check. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/nes: Clear stall bit before destroying NIC QPChien Tung2010-03-112-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clear the stall bit to drop any incoming packets while destroying NIC QP. This will prevent a chip resource leak. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/nes: Set assume_aligned_header bitFaisal Latif2010-03-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set assume_aligned_header bit in QP context as requested by hardware group. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * | IB/mad: Ignore iWARP devices on device removalSteve Wise2010-03-111-0/+3
| | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an iWARP device is unloaded, the ib_mad module logs errors. It should be ignoring iWARP devices on device removal just like it does on device add. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | IPoIB: Include return code in trace message for ib_post_send() failuresOr Gerlitz2010-03-112-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Print the return code of ib_post_send() if it fails to make these debugging messages more useful. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | IPoIB: Fix TX queue lockup with mixed UD/CM trafficEli Cohen2010-03-111-0/+2
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IPoIB UD QP reports send completions to priv->send_cq, which is usually left unarmed; it only gets armed when the number of outstanding send requests reaches the size of the TX queue. This arming is done only in the send path for the UD QP. However, when sending CM packets, the net queue may be stopped for the same reasons but no measures are taken to recover the UD path from a lockup. Consider this scenario: a host sends high rate of both CM and UD packets, with a TX queue length of N. If at some time the number of outstanding UD packets is more than N/2 and the overall outstanding packets is N-1, and CM sends a packet (making the number of outstanding sends equal N), the TX queue will be stopped. When all the CM packets complete, the number of outstanding packets will still be higher than N/2 so the TX queue will not be restarted. Fix this by calling ib_req_notify_cq() when the queue is stopped in the CM path. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * / RDMA/cxgb3: Wait at least one schedule cycle during device removalSteve Wise2010-03-111-0/+2
| |/ | | | | | | | | | | | | | | | | | | During a hot-plug LLD removal event or an EEH error event, iw_cxgb3 must ensure that any/all threads that might be in a cxgb3 exported function must return from the function before iw_cxgb3 returns from its event processing. Do this by calling synchronize_net(). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-122-3/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
| * \ Merge branch 'for-next' into for-linusJiri Kosina2010-03-082-3/+3
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| | * tree-wide: Assorted spelling fixesDaniel Mack2010-02-092-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Driver core: Constify struct sysfs_ops in struct kobj_typeEmese Revfy2010-03-072-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Constify struct sysfs_ops. This is part of the ops structure constification effort started by Arjan van de Ven et al. Benefits of this constification: * prevents modification of data that is shared (referenced) by many other structure instances at runtime * detects/prevents accidental (but not intentional) modification attempts on archs that enforce read-only kernel data at runtime * potentially better optimized code as the compiler can assume that the const data cannot be changed * the compiler/linker move const data into .rodata and therefore exclude them from false sharing Signed-off-by: Emese Revfy <re.emese@gmail.com> Acked-by: David Teigland <teigland@redhat.com> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Acked-by: Hans J. Koch <hjk@linutronix.de> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Jens Axboe <jens.axboe@oracle.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | driver core: Convert some drivers to CLASS_ATTR_STRINGAndi Kleen2010-03-073-26/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert some drivers who export a single string as class attribute to the new class_attr_string functions. This removes redundant code all over. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | driver-core: Add attribute argument to class_attribute show/storeAndi Kleen2010-03-073-3/+9
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Passing the attribute to the low level IO functions allows all kinds of cleanups, by sharing low level IO code without requiring an own function for every piece of data. Also drivers can extend the attributes with own data fields and use that in the low level function. This makes the class attributes the same as sysdev_class attributes and plain attributes. This will allow further cleanups in drivers. Full tree sweep converting all users. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | infiniband: use for_each_set_bit()Akinobu Mita2010-03-061-16/+5
| | | | | | | | | | | | | | | | | | | | | | Replace open-coded loop with for_each_set_bit(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-043-26/+25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits) init: Open /dev/console from rootfs mqueue: fix typo "failues" -> "failures" mqueue: only set error codes if they are really necessary mqueue: simplify do_open() error handling mqueue: apply mathematics distributivity on mq_bytes calculation mqueue: remove unneeded info->messages initialization mqueue: fix mq_open() file descriptor leak on user-space processes fix race in d_splice_alias() set S_DEAD on unlink() and non-directory rename() victims vfs: add NOFOLLOW flag to umount(2) get rid of ->mnt_parent in tomoyo/realpath hppfs can use existing proc_mnt, no need for do_kern_mount() in there Mirror MS_KERNMOUNT in ->mnt_flags get rid of useless vfsmount_lock use in put_mnt_ns() Take vfsmount_lock to fs/internal.h get rid of insanity with namespace roots in tomoyo take check for new events in namespace (guts of mounts_poll()) to namespace.c Don't mess with generic_permission() under ->d_lock in hpfs sanitize const/signedness for udf nilfs: sanitize const/signedness in dealing with ->d_name.name ... Fix up fairly trivial (famous last words...) conflicts in drivers/infiniband/core/uverbs_main.c and security/tomoyo/realpath.c
| * | switch infiniband uverbs to anon_inodesAl Viro2010-03-034-81/+29
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-0335-1200/+1123
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (48 commits) IB/srp: Clean up error path in srp_create_target_ib() IB/srp: Split send and recieve CQs to reduce number of interrupts RDMA/nes: Add support for KR device id 0x0110 IB/uverbs: Use anon_inodes instead of private infinibandeventfs IB/core: Fix and clean up ib_ud_header_init() RDMA/cxgb3: Mark RDMA device with CXIO_ERROR_FATAL when removing RDMA/cxgb3: Don't allocate the SW queue for user mode CQs RDMA/cxgb3: Increase the max CQ depth RDMA/cxgb3: Doorbell overflow avoidance and recovery IB/core: Pack struct ib_device a little tighter IB/ucm: Clean whitespace errors IB/ucm: Increase maximum devices supported IB/ucm: Use stack variable 'base' in ib_ucm_add_one IB/ucm: Use stack variable 'devnum' in ib_ucm_add_one IB/umad: Clean whitespace IB/umad: Increase maximum devices supported IB/umad: Use stack variable 'base' in ib_umad_init_port IB/umad: Use stack variable 'devnum' in ib_umad_init_port IB/umad: Remove port_table[] IB/umad: Convert *cdev to cdev in struct ib_umad_port ...
| * \ \ Merge branch 'misc' into for-nextRoland Dreier2010-03-017-71/+14
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/infiniband/core/uverbs_main.c
| | * | | IB/uverbs: Use anon_inodes instead of private infinibandeventfsRoland Dreier2010-02-242-56/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The anon_inodes interface has been split to allow creating a bare (non-installed) file pointer and also extended to allow specifying O_RDONLY in the flags. This makes it a suitable replacement for the private "infinibandeventfs" pseudo-filesystem used by uverbs, and this replacement saves a small chunk of boilerplate code. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/core: Fix and clean up ib_ud_header_init()Eli Cohen2010-02-243-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_ud_header_init() first clears header and then fills up the various fields. Later on, it tests header->immediate_present, which it has already cleared, so the condition is always false. Fix this by adding an immediate_present parameter and setting header->immediate_present as is done with grh_present. Also remove unused calculation of header_len. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | RDMA: Use rlimit helpersJiri Slaby2010-02-112-3/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure compiler won't do weird things with limits by using the rlimit helpers added in 3e10e716 ("resource: add helpers for fetching rlimits"). E.g. fetching them twice may return 2 different values after writable limits are implemented. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'srp' into for-nextRoland Dreier2010-03-012-32/+65
| |\ \ \
| | * | | IB/srp: Clean up error path in srp_create_target_ib()Roland Dreier2010-03-011-13/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of repeating the error unwinding steps in each place an error can be detected, use the common idiom of gotos into an error flow. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/srp: Split send and recieve CQs to reduce number of interruptsBart Van Assche2010-03-012-25/+53
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can reduce the number of IB interrupts from two interrupts per srp_queuecommand() call to one by using separate CQs for send and receive completions and processing send completions by polling every time a TX IU is allocated. Receive completion events still trigger an interrupt. Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'nes' into for-nextRoland Dreier2010-03-017-290/+284
| |\ \ \
| | * | | RDMA/nes: Add support for KR device id 0x0110Chien Tung2010-02-255-218/+243
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for KR device id 0x0110. While at it, cleanup nes_init_phy() by splitting it into nes_init_1g_phy() and nes_init_2025_phy(). Remove support for NES_PHY_TYPE_IRIS, which was used on an XFP board that was only manufactured in small quantities and given out for evals in even smaller quantities. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | RDMA/nes: Change WQ overflow return codeOr Gerlitz2010-02-191-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the nes driver to return -ENOMEM on SQ/RQ overflow to match the return code of other RDMA HW drivers (e.g cxgb3, ehca, mlx4, mthca). Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Acked-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | RDMA/nes: Multiple disconnects cause crash during AE handlingFaisal Latif2010-02-191-60/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a double disconnect during AE processing, causing crashes. While fixing the crash, also simplify the AE handling code. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | RDMA/nes: Fix crash when listener destroyed during loopback setupFaisal Latif2010-02-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a listener is destroyed and there is an MPA response pending for loopback connection, the active side cm_node gets destroyed twice: once in cm_event_connect_error() and again in nes_accept()/nes_reject(). Increment the cm_node's refcount so it's not destroyed by cm_event_connect_error(). Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | RDMA/nes: Use atomic counters for CM listener create and destroyFaisal Latif2010-02-193-8/+8
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After running long iterative MPI tests, sometimes ethtool reports a "CM Destroy Listener" count more than the "CM Create Listener" count. This inconsistency is fixed by making counter variables atomic. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'mlx4' into for-nextRoland Dreier2010-03-011-1/+1
| |\ \ \
| | * | | IB/mlx4: Simplify retrieval of ib_deviceEli Cohen2010-02-121-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct ib_qp already holds a pointer to the ib device. No need to dive to the hw device object to retrieve it. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'iser' into for-nextRoland Dreier2010-03-015-604/+391
| |\ \ \
| | * | | IB/iser: Remove redundant locking from iser scsi command response flowOr Gerlitz2010-02-241-25/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the iSER receive completion flow takes the session lock twice. Optimize it to avoid the first one by letting iser_task_rdma_finalize() be called only from the cleanup_task callback invoked by iscsi_free_task, thus reducing the contention on the session lock between the scsi command submission to the scsi command completion flows. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Use libiscsi passthrough modeOr Gerlitz2010-02-242-20/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libiscsi passthrough mode invokes the transport xmit calls directly without first going through an internal queue, unlike the other mode, which uses a queue and a xmitworker thread. Now that the "cant_sleep" prerequisite of iscsi_host_alloc is met, move to use it. Handling xmit errors is now done by the passthrough flow of libiscsi. Since the queue/worker aren't used in this mode, the code that schedules the xmitworker is removed. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Remove unnecessary connection checksOr Gerlitz2010-02-243-52/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary checks for the IB connection state and for QP overflow, as conn state changes are reported by iSER to libiscsi and handled there. QP overflow is theoretically possible only when unsolicited data-outs are used; anyway it's being checked and handled by HW drivers. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Use atomic allocationsOr Gerlitz2010-02-242-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two minor flows in iSER's data path still use allocations; move them to be atomic as a preperation step towards moving to use libiscsi passthrough mode. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Simplify send flow/descriptorsOr Gerlitz2010-02-245-278/+115
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify and shrink the logic/code used for the send descriptors. Changes include removing struct iser_dto (an unnecessary abstraction), using struct iser_regd_buf only for handling SCSI commands, using dma_sync instead of dma_map/unmap, etc. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Use different CQ for send completionsOr Gerlitz2010-02-242-37/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a different CQ for send completions, where send completions are polled by the interrupt-driven receive completion handler. Therefore, interrupts aren't used for the send CQ. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Remove atomic counter for posted receive buffersOr Gerlitz2010-02-243-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that both the posting and reaping of receive buffers is done in the completion path, the counter of outstanding buffers not be atomic. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: New receive buffer posting logicOr Gerlitz2010-02-244-176/+235
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the recv buffer posting logic is based on the transactional nature of iSER which allows for posting a buffer before sending a PDU. Change this to post only when the number of outstanding recv buffers is below a water mark and in a batched manner, thus simplifying and optimizing the data path. Use a pre-allocated ring of recv buffers instead of allocating from kmem cache. A special treatment is given to the login response buffer whose size must be 8K unlike the size of buffers used for any other purpose which is 128 bytes. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/iser: Revert commit bba7ebb "avoid recv buffer exhaustion"Or Gerlitz2010-02-243-95/+41
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We will make a major change in the recv buffer posting logic, after which the problem commit bba7ebb "avoid recv buffer exhaustion caused by unexpected PDUs" comes to solve doesn't exist any more, so revert it. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'ipoib' into for-nextRoland Dreier2010-03-011-8/+2
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| | * | | IPoIB: Remove TX moderation settings from ethtool supportOr Gerlitz2010-02-111-8/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of commit f56bcd8 ("IPoIB: Use separate CQ for UD send completions"), there are no TX interrupts. Change the ethtool code not to report TX moderation settings, so users will not be misled to think they can control TX interrupt moderation. Pointed out by Alex Vainman <alexv@voltaire.com> Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | Merge branch 'ehca' into for-nextRoland Dreier2010-03-013-7/+4
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| | * | | IB/ehca: Require in_wc in process_mad()Alexander Schmidt2010-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the caller does not pass a valid in_wc to process_mad(), return MAD failure status, as it is not possible to generate a valid MAD redirect response (and redirects are the only MAD responses ehca generates). Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/ehca: Allow access for ib_query_qp()Alexander Schmidt2010-02-121-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The max_dest_rd_atomic and max_qp_rd_atomic values are properly returned by query_qp(), so there should not be an error returned when they are queried. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | | IB/ehca: Do not turn off irqs in tasklet contextAlexander Schmidt2010-02-121-3/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irq_spinlock is only taken in tasklet context, so it is safe not to disable hardware interrupts. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-05 20:51:21 +0000