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path: root/drivers/infiniband/hw
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2011-01-11IB/qib: Fix interrupt mitigationMike Marciniszyn5-8/+12
For SusieQ we need to write to the interrupt timer register before updating the header queue head with interrupt count. This is to ensure that the timer is enabled properly and a receive available interrupt is delivered. Otherwise this interrupt can be lost if the receiver header/eager queues are full before the timer is enabled. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Avoid duplicate writes to the rcv head registerMike Marciniszyn1-1/+9
Avoid duplicate writes to the head register as this can lead to lost interrupts if the context goes full before the second write is done. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Add a few new SERDES tuningsMike Marciniszyn1-3/+26
Add new SERDES tuning to aid manufacturing. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Reset packet list after freeingMike Marciniszyn1-0/+1
Reset the list pointers after freeing the SDMA packet list. This is done to any potential double-free cases. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: New SERDES init routine and improvements to SI qualityMike Marciniszyn1-15/+255
Implement new SERDES initialization routine and improvements to signal integrity -- disable LE1 adaptation, disable LOS after link-up, set better SERDES parameters. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Clear WAIT_SEND flags when setting QP to error stateMike Marciniszyn1-0/+4
If these flags are set when the QP is transitioned to the error state, it will wait until the flags are cleared, which may never happen if the error transition is due to a link going down. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Fix context allocation with multiple HCAsMike Marciniszyn1-5/+5
The driver was incorrectly choosing HCAs on which to allocate new user contexts based on overall count of usable ports regardless whether the usable port was on the currently selected HCA. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Fix multi-Florida HCA host panic on rebootMike Marciniszyn1-2/+4
Add check when setting configured contexts that the value does not exceed the number of contexts allocated for the card. If the value exceeds the already allocated count, set it to what is already allocated. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Handle transitions from ACTIVE_DEFERRED to ACTIVE betterMike Marciniszyn1-1/+2
When the link transitions from ACTIVE_DEFERRED to ACTIVE, the driver only sees the ACTIVE state. With this change, it will check whether the state was already ACTIVE and if so, it will not generated IB events and will not clear symbol error counts. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: UD send with immediate receive completion has wrong sizeMike Marciniszyn1-1/+1
The code to generate receive completion entries for UD send with immediate contains the wrong payload length. This is because when the code to compute the payload size was moved, the value of hdrsize didn't get moved too. The fix is to update tlen directly. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Set port physical state even if other fields are invalidMike Marciniszyn1-20/+25
The IBTA vol. 1 release 1.2.1 spec. says: C14-24.2.1: If PortInfo:Portstate=Down, then a SubnSet(PortInfo) shall make any changes it specifies to PortInfo:PortPhysicalState; any other result is vendor-dependent. The patch changes the error handling so that the reply says there are invalid fields but still attempts to set fields that are in range including PortInfo:PortPhysicalState. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Generate completion callback on errorsMike Marciniszyn1-1/+2
According to IBTA vol. 1, C11-30.1.1, a notification callback is invoked if the CQ is armed for the next solicited completion event or an error completion. The error case wasn't being generated correctly. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Add support for the new QME7362 cardMike Marciniszyn1-0/+4
Add support to recognize another board variation named QME7362. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Add receive header queue size module parametersMike Marciniszyn1-4/+24
The receive header queue sizes need to modified for performance tuning. Three module parameters are added to support this. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/qib: Remove IB latency turnoffMike Marciniszyn1-2/+0
This is required for hardware testing. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11RDMA/nes: Fix string continuation lineJoe Perches1-2/+2
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/mthca: Handle -ENOMEM in forward_trap()Dan Carpenter1-0/+2
ib_create_send_mad() can return ERR_PTR(-ENOMEM) here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/mlx4: Handle -ENOMEM in forward_trap()Dan Carpenter1-0/+2
ib_create_send_mad() can return ERR_PTR(-ENOMEM) here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/mlx4: Don't call dma_free_coherent() with irqs disabledVladimir Sokolovsky1-1/+8
mlx4_ib_free_cq_buf() should not be called under spin_lock_irq() since it calls dma_free_coherent(), which needs irqs enabled. Fix this by deferring the free to outside the locked region. This was found due to the WARN_ON(irqs_disabled()); in swiotlb_free_coherent(). Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11IB/ipath: Use printf extension %pR for struct resourceJoe Perches1-3/+2
Using %pR standardizes the struct resource output. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11RDMA/cxgb4: Don't re-init wait object in init/fini pathsSteve Wise1-2/+0
Re-initializing the wait object in rdma_init()/rdma_fini() causes a timing window which can lead to a deadlock during close. Once this deadlock hits, all RDMA activity over the T4 device will be stuck. There's no need to re-init the wait object, so remove it. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Cc: <stable@kernel.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-11RDMA/cxgb3,cxgb4: Remove dead codeStephen Hemminger5-89/+2
This removes unused code found by running 'make namespacecheck'; compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-07Merge branch 'vfs-scale-working' of ↵Linus Torvalds2-10/+3
git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin * 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits) fs: scale mntget/mntput fs: rename vfsmount counter helpers fs: implement faster dentry memcmp fs: prefetch inode data in dcache lookup fs: improve scalability of pseudo filesystems fs: dcache per-inode inode alias locking fs: dcache per-bucket dcache hash locking bit_spinlock: add required includes kernel: add bl_list xfs: provide simple rcu-walk ACL implementation btrfs: provide simple rcu-walk ACL implementation ext2,3,4: provide simple rcu-walk ACL implementation fs: provide simple rcu-walk generic_check_acl implementation fs: provide rcu-walk aware permission i_ops fs: rcu-walk aware d_revalidate method fs: cache optimise dentry and inode for rcu-walk fs: dcache reduce branches in lookup path fs: dcache remove d_mounted fs: fs_struct use seqlock fs: rcu-walk for path lookup ...
2011-01-07fs: dcache rationalise dget variantsNick Piggin2-2/+2
dget_locked was a shortcut to avoid the lazy lru manipulation when we already held dcache_lock (lru manipulation was relatively cheap at that point). However, how that the lru lock is an innermost one, we never hold it at any caller, so the lock cost can now be avoided. We already have well working lazy dcache LRU, so it should be fine to defer LRU manipulations to scan time. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07fs: dcache remove dcache_lockNick Piggin2-8/+1
dcache_lock no longer protects anything. remove it. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07fs: dcache scale dentry refcountNick Piggin2-2/+2
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a 0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when we start protecting many other dentry members with d_lock. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2010-12-27Merge branch 'master' of ↵David S. Miller3-8/+7
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/ipv4/fib_frontend.c
2010-12-22Merge branch 'master' into for-nextJiri Kosina3-8/+7
Conflicts: MAINTAINERS arch/arm/mach-omap2/pm24xx.c drivers/scsi/bfa/bfa_fcpim.c Needed to update to apply fixes for which the old branch was too outdated.
2010-12-02Merge branch 'for-linus' of ↵Linus Torvalds2-7/+7
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: IB: Fix information leak in marshalling code IB/pack: Remove some unused code added by the IBoE patches IB/mlx4: Fix IBoE link state IB/mlx4: Fix IBoE reported link rate mlx4_core: Workaround firmware bug in query dev cap IB/mlx4: Fix memory ordering of VLAN insertion control bits MAINTAINERS: Update NetEffect entry
2010-12-02IB/mlx4: Fix IBoE link stateEli Cohen1-1/+1
Use netif_running() and netif_carrier_ok() to report link state, exactly as is done to report Ethernet link state in sysfs. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-02IB/mlx4: Fix IBoE reported link rateEli Cohen1-1/+1
The link rate is the product of the link speed in the link width. For Etherent ports the rate is 10G, so we use 1 for the width and 4 for speed to get the correct rate. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01IB/mlx4: Fix memory ordering of VLAN insertion control bitsEli Cohen1-5/+5
We must fully update the control segment before marking it as valid, so that hardware doesn't start executing it before we're ready. Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Move VLAN control bit setting to before wmb(). - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-11-24infiniband: remove dev_base_lock useEric Dumazet1-3/+3
dev_base_lock is the legacy way to lock the device list, and is planned to disappear. (writers hold RTNL, readers hold RCU lock) Convert rdma_translate_ip() and update_ipv6_gids() to RCU locking. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17BKL: remove extraneous #include <smp_lock.h>Arnd Bergmann1-1/+0
The big kernel lock has been removed from all these files at some point, leaving only the #include. Remove this too as a cleanup. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-15infiniband: Only include mutex.h once in drivers/infiniband/hw/cxgb4/iw_cxgb4.hJesper Juhl1-1/+0
Only include the header linux/mutex.h once inside drivers/infiniband/hw/cxgb4/iw_cxgb4.h Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-11-01tree-wide: fix comment/printk typosUwe Kleine-König2-2/+2
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-29convert get_sb_single() usersAl Viro2-14/+14
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-27Merge branch 'for-linus' of ↵Linus Torvalds2-0/+2
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) split invalidate_inodes() fs: skip I_FREEING inodes in writeback_sb_inodes fs: fold invalidate_list into invalidate_inodes fs: do not drop inode_lock in dispose_list fs: inode split IO and LRU lists fs: switch bdev inode bdi's correctly fs: fix buffer invalidation in invalidate_list fsnotify: use dget_parent smbfs: use dget_parent exportfs: use dget_parent fs: use RCU read side protection in d_validate fs: clean up dentry lru modification fs: split __shrink_dcache_sb fs: improve DCACHE_REFERENCED usage fs: use percpu counter for nr_dentry and nr_dentry_unused fs: simplify __d_free fs: take dcache_lock inside __d_path fs: do not assign default i_ino in new_inode fs: introduce a per-cpu last_ino allocator new helper: ihold() ...
2010-10-27Merge branch 'for-linus' of ↵Linus Torvalds39-538/+1520
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: (63 commits) IB/qib: clean up properly if pci_set_consistent_dma_mask() fails IB/qib: Allow driver to load if PCIe AER fails IB/qib: Fix uninitialized pointer if CONFIG_PCI_MSI not set IB/qib: Fix extra log level in qib_early_err() RDMA/cxgb4: Remove unnecessary KERN_<level> use RDMA/cxgb3: Remove unnecessary KERN_<level> use IB/core: Add link layer type information to sysfs IB/mlx4: Add VLAN support for IBoE IB/core: Add VLAN support for IBoE IB/mlx4: Add support for IBoE mlx4_en: Change multicast promiscuous mode to support IBoE mlx4_core: Update data structures and constants for IBoE mlx4_core: Allow protocol drivers to find corresponding interfaces IB/uverbs: Return link layer type to userspace for query port operation IB/srp: Sync buffer before posting send IB/srp: Use list_first_entry() IB/srp: Reduce number of BUSY conditions IB/srp: Eliminate two forward declarations IB/mlx4: Signal node desc changes to SM by using FW to generate trap 144 IB: Replace EXTRA_CFLAGS with ccflags-y ...
2010-10-27Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'ehca', 'iboe', 'ipoib', ↵Roland Dreier39-538/+1520
'misc', 'mlx4', 'nes', 'qib' and 'srp' into for-next
2010-10-27IB/qib: clean up properly if pci_set_consistent_dma_mask() failsJason Gunthorpe1-1/+3
Clean up properly if pci_set_consistent_dma_mask() fails. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-27IB/qib: Allow driver to load if PCIe AER failsRalph Campbell1-1/+3
Some PCIe root complex chip sets don't support advanced error reporting. Allow the driver to load OK if pci_enable_pcie_error_reporting() fails. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-27IB/qib: Fix uninitialized pointer if CONFIG_PCI_MSI not setRalph Campbell1-0/+1
If CONFIG_PCI_MSI is not set, and a QLE7140 is present, the pointer "dd" is uninitialized. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-27IB/qib: Fix extra log level in qib_early_err()Jason Gunthorpe1-1/+1
Noticed this odd looking thing in dmesg: ib_qib 0000:02:00.0: <3>ib_qib: Unable to enable pcie error reporting: -5 which is due to a bad use of dev_info. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-27RDMA/cxgb4: Remove unnecessary KERN_<level> useJoe Perches1-2/+2
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-27RDMA/cxgb3: Remove unnecessary KERN_<level> useJoe Perches1-2/+2
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-26fs: do not assign default i_ino in new_inodeChristoph Hellwig2-0/+2
Instead of always assigning an increasing inode number in new_inode move the call to assign it into those callers that actually need it. For now callers that need it is estimated conservatively, that is the call is added to all filesystems that do not assign an i_ino by themselves. For a few more filesystems we can avoid assigning any inode number given that they aren't user visible, and for others it could be done lazily when an inode number is actually needed, but that's left for later patches. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-25IB/mlx4: Add VLAN support for IBoEEli Cohen3-27/+161
This patch allows IBoE traffic to be encapsulated in 802.1Q tagged VLAN frames. The VLAN tag is encoded in the GID and derived from it by a simple computation. The netdev notifier callback is modified to catch VLAN device addition/removal and the port's GID table is updated to reflect the change, so that for each netdevice there is an entry in the GID table. When the port's GID table is exhausted, GID entries will not be added. Only children of the main interfaces can add to the GID table; if a VLAN interface is added on another VLAN interface (e.g. "vconfig add eth2.6 8"), then that interfaces will not add an entry to the GID table. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-25IB/core: Add VLAN support for IBoEEli Cohen2-2/+2
Add 802.1q VLAN support to IBoE. The VLAN tag is encoded within the GID derived from a link local address in the following way: GID[11] GID[12] contain the VLAN ID when the GID contains a VLAN. The 3 bits user priority field of the packets are identical to the 3 bits of the SL. In case of rdma_cm apps, the TOS field is used to generate the SL field by doing a shift right of 5 bits effectively taking to 3 MS bits of the TOS field. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-25IB/mlx4: Add support for IBoEEli Cohen5-108/+687
Add support for IBoE to mlx4_ib. The bulk of the code is handling the new address vector fields; mlx4 needs the MAC address of a remote node to include it in a WQE (for datagrams) or in the QP context (for connected QPs). Address resolution is done by assuming all unicast GIDs are either link-local IPv6 addresses. Multicast group attach/detach needs to update the NIC's multicast filters; but since attaching a QP to a multicast group can be done before the QP is bound to a port, for IBoE we need to keep track of all multicast groups that a QP is attached too before it transitions from INIT to RTR (since it does not have a port in the INIT state). Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Many things cleaned up and otherwise monkeyed with; hope I didn't introduce too many bugs. - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
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