- 09 Dec, 2012 1 commit
-
-
Roland Dreier authored
-
- 08 Dec, 2012 3 commits
-
-
Tatyana Nikolova authored
Signed-off-by:
Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
-
Tatyana Nikolova authored
The terminate timer needs to be initialized just once. Signed-off-by:
-
Tatyana Nikolova authored
To avoid nes tcp_timer crash for SMP architectures, add_timer is replaced with mod_timer. Signed-off-by:
-
- 01 Dec, 2012 17 commits
-
-
Roland Dreier authored
-
Bart Van Assche authored
Make it possible to disconnect the IB RC connection used by the SRP protocol to communicate with a target. Have the SRP transport layer create a sysfs "delete" attribute for initiator drivers that support this functionality. Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Acked-by:
David Dillow <dillowda@ornl.gov> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by:
-
Bart Van Assche authored
Signed-off-by:
-
Bart Van Assche authored
Eliminate the private_rport_attrs[] array and the SETUP_*() macros used to set up that array since the information in that array duplicates the information in the static device attributes. Also, verify whether SRP_RPORT_ATTRS is large enough since it is easy to forget to update that macro when adding new attributes. Signed-off-by:
-
Bart Van Assche authored
Register transport attributes after the attribute array has been set up instead of before. The current code can trigger a race condition because the code reading the attribute array can run on another thread than the code that initialized that array. Make sure that any code reading the attribute array will see all values written into that array. Signed-off-by:
-
Bart Van Assche authored
Document the sysfs attributes of the SRP initiator (ib_srp) according to the rules specified in Documentation/ABI/README. Signed-off-by:
-
Vu Pham authored
Now that SRP recreates the CM ID, QP, and CQ for each connection, there is no need to wait for the timewait state to complete. Signed-off-by:
Vu Pham <vu@mellanox.com> Signed-off-by:
-
Ishai Rabinovitz authored
HW QP FATAL errors persist over a reset operation, but we can recover from that by recreating the QP and associated CQs for each connection. Creating a new QP/CQ also completely forecloses any possibility of getting stale completions or packets on the new connection. Signed-off-by:
Ishai Rabinovitz <ishai@mellanox.co.il> Signed-off-by:
Michael S. Tsirkin <mst@mellanox.co.il> [ updated to current code from OFED, cleaned up commit message ] Signed-off-by:
-
Bart Van Assche authored
Only queue removal work after having changed the target state into SRP_TARGET_REMOVED and not if that state was already equal to SRP_TARGET_REMOVED. That allows us to remove the state SRP_TARGET_DEAD. Add a call to srp_disconnect_target() in srp_remove_target() -- due to previous changes it is now safe to invoke that function even if the IB connection has already been disconnected. This change allows us to replace the target removal code in srp_remove_one() by an (indirect) call to srp_remove_target(). Rename srp_target_port.work into srp_target_port.remove_work to reflect its usage. Signed-off-by:
-
Bart Van Assche authored
Signed-off-by:
-
Bart Van Assche authored
Keep track of the connection state. Only report QP errors while connected. Only invoke ib_send_cm_dreq() when connected so that invoking srp_disconnect_target() after having received a DREQ does not cause an error message to be printed. Signed-off-by:
-
Bart Van Assche authored
If the RDMA RC connection is closed, tell the SCSI mid-layer to terminate all pending commands instead of only the first. Signed-off-by:
-
Bart Van Assche authored
Introduce the function srp_handle_qp_err(), change the type of qp_in_error from int into bool and move the initialization of that variable from srp_reconnect_target() to srp_connect_target(). Signed-off-by:
-
Bart Van Assche authored
Since scsi_remove_host() has been modified so that SCSI error handling functions will no longer be invoked after scsi_remove_host() returns, the test at the start of srp_send_tsk_mgmt() is now superfluous. Signed-off-by:
-
Bart Van Assche authored
Some SCSI upper layer drivers, e.g. sd, issue SCSI commands from inside scsi_remove_host() (see the sd_shutdown() call in sd_remove()). Make sure that these commands have a chance to reach the SCSI device. Signed-off-by:
-
Bart Van Assche authored
Block the SCSI host while reconnecting instead of representing the reconnection activity as a distinct SRP target state. This allows us to eliminate the target state SRP_TARGET_CONNECTING. Signed-off-by:
-
Bart Van Assche authored
Increase the block layer timeout for disks so that it is above the InfiniBand transport layer timeout. Signed-off-by:
-
- 29 Nov, 2012 4 commits
-
-
Roland Dreier authored
-
shefty authored
Problem reported by Dan Carpenter <dan.carpenter@oracle.com>: The patch 3c86aa70: "RDMA/cm: Add RDMA CM support for IBoE devices" from Oct 13, 2010, leads to the following warning: net/sunrpc/xprtrdma/svc_rdma_transport.c:722 svc_rdma_create() error: passing non neg 1 to ERR_PTR This bug would result in a NULL dereference. svc_rdma_create() is supposed to return ERR_PTRs or valid pointers, but instead it returns ERR_PTRs, valid pointers and 1. The call tree is: svc_rdma_create() => rdma_bind_addr() => cma_acquire_dev() => find_gid_port() rdma_bind_addr() should return a valid errno. Fix this by having find_gid_port() also return a valid errno. If we can't find the specified GID on a given port, return -EADDRNOTAVAIL, rather than -EAGAIN, to better indicate the error. We also drop using the special return value of '1' and instead pass through the error returned by the underlying verbs call. On such errors, rather than aborting the search, we simply continue to check the next device/port. Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
-
Jack Morgenstein authored
The slave_state_lock spinlock is used in both interrupt context and process context, hence irq locking must be used. Found by lockdep. Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Cc: <stable@vger.kernel.org> Signed-off-by:
-
Jack Morgenstein authored
lockdep warns about taking a hard-irq-unsafe lock (sriov->id_map_lock) inside a hard-irq-safe lock (sriov->going_down_lock). Since id_map_lock is never taken in the interrupt context, we can simply reverse the order of taking the two spinlocks, thus avoiding the warning and the depencency. Signed-off-by:
-
- 26 Nov, 2012 4 commits
-
-
Roland Dreier authored
-
Julia Lawall authored
Use WARN rather than printk followed by WARN_ON(1), for conciseness. A simplified version of the semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression list es; @@ -printk( +WARN(1, es); -WARN_ON(1); // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
-
Julia Lawall authored
Use WARN rather than printk followed by WARN_ON(1), for conciseness. A simplified version of the semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression list es; @@ -printk( +WARN(1, es); -WARN_ON(1); // </smpl> Signed-off-by:
-
Or Gerlitz authored
ConnectX-3 devices can use either 64- or 32-byte completion queue entries (CQEs) and event queue entries (EQEs). Using 64-byte EQEs/CQEs performs better because each entry is aligned to a complete cacheline. This patch queries the HCA's capabilities, and if it supports 64-byte CQEs and EQES the driver will configure the HW to work in 64-byte mode. The 32-byte vs 64-byte mode is global per HCA and not per CQ or EQ. Since this mode is global, userspace (libmlx4) must be updated to work with the configured CQE size, and guests using SR-IOV virtual functions need to know both EQE and CQE size. In case one of the 64-byte CQE/EQE capabilities is activated, the patch makes sure that older guest drivers that use the QUERY_DEV_FUNC command (e.g as done in mlx4_core of Linux 3.3..3.6) will notice that they need an update to be able to work with the PPF. This is done by changing the returned pf_context_behaviour not to be zero any more. In case none of these capabilities is activated that value remains zero and older guest drivers can run OK. The SRIOV related flow is as follows 1. the PPF does the detection of the new capabilities using QUERY_DEV_CAP command. 2. the PPF activates the new capabilities using INIT_HCA. 3. the VF detects if the PPF activated the capabilities using QUERY_HCA, and if this is the case activates them for itself too. Note that the VF detects that it must be aware to the new PF behaviour using QUERY_FUNC_CAP. Steps 1 and 2 apply also for native mode. User space notification is done through a new field introduced in struct mlx4_ib_ucontext which holds device capabilities for which user space must take action. This changes the binary interface so the ABI towards libmlx4 exposed through uverbs is bumped from 3 to 4 but only when **needed** i.e. only when the driver does use 64-byte CQEs or future device capabilities which must be in sync by user space. This practice allows to work with unmodified libmlx4 on older devices (e.g A0, B0) which don't support 64-byte CQEs. In order to keep existing systems functional when they update to a newer kernel that contains these changes in VF and userspace ABI, a module parameter enable_64b_cqe_eqe must be set to enable 64-byte mode; the default is currently false. Signed-off-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
-
- 22 Nov, 2012 8 commits
-
-
Alan Cox authored
Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
-
Alan Cox authored
Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
-
Julia Lawall authored
Use WARN() rather than printk() followed by WARN_ON(1), for conciseness. A simplified version of the semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression list es; @@ -printk( +WARN(1, es); -WARN_ON(1); // </smpl> Signed-off-by:
-
Tatyana Nikolova authored
Signed-off-by:
-
Tatyana Nikolova authored
Locking fix to prevent race conditions. Fpdus (per qp) need to be forwarded to hardware in the order of their sequence numbers. Signed-off-by:
Donald Wood <Donald.E.Wood@intel.com> Signed-off-by:
-
Tatyana Nikolova authored
Signed-off-by:
-
Tatyana Nikolova authored
Fix for incorrect ip header address when forwarding fpdus to hardware. Signed-off-by:
-
David Howells authored
Signed-off-by:
David Howells <dhowells@redhat.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Michael Kerrisk <mtk.manpages@gmail.com> Acked-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by:
Dave Jones <davej@redhat.com> Signed-off-by:
-
- 17 Nov, 2012 2 commits
-
-
Linus Torvalds authored
-
git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM fix from Marcelo Tosatti: "A correction for oops on module init with older Intel hosts." * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()
-
- 16 Nov, 2012 1 commit
-
-
Linus Torvalds authored
Merge misc fixes from Andrew Morton. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (12 patches) revert "mm: fix-up zone present pages" tmpfs: change final i_blocks BUG to WARNING tmpfs: fix shmem_getpage_gfp() VM_BUG_ON mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" rapidio: fix kernel-doc warnings swapfile: fix name leak in swapoff memcg: fix hotplugged memory zone oops mips, arc: fix build failure memcg: oom: fix totalpages calculation for memory.swappiness==0 mm: fix build warning for uninitialized value mm: add anon_vma_lock to validate_mm()
-
