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path: root/drivers/infiniband
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2009-01-05zero i_uid/i_gid on inode allocationAl Viro
... and don't bother in callers. Don't bother with zeroing i_blocks, while we are at it - it's already been zeroed. i_mode is not worth the effort; it has no common default value. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31Merge branch 'master' of ↵Rusty Russell
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/x86/kernel/io_apic.c
2008-12-30Merge branch 'for-linus' of ↵Linus Torvalds
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/mlx4: Fix reading SL field out of cqe->sl_vid RDMA/addr: Fix build breakage when IPv6 is disabled
2008-12-30Merge branches 'cma' and 'mlx4' into for-linusRoland Dreier
2008-12-30IB/mlx4: Fix reading SL field out of cqe->sl_vidRoland Dreier
Commit f780a9f1 ("mlx4_core: Add ethernet fields to CQE struct") introduced a bug in how wc->sl is set in mlx4_ib_poll_one() -- since cqe->sl_vid is a big-endian value, the shift must be done after converting to host endianness. This bug was found using sparse endianness checking. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-29RDMA/addr: Fix build breakage when IPv6 is disabledRoland Dreier
Commit 38617c64 ("RDMA/addr: Add support for translating IPv6 addresses") broke the build when CONFIG_IPV6=n, because the ib_addr module unconditionally attempted to call ipv6_chk_addr() and other IPv6 functions that are not defined when IPv6 is disabled. Fix this by only building IPv6 support if CONFIG_IPV6 is turned on, and add a Kconfig dependency to prevent the ib_addr code from being built in when IPv6 is built modular. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-30cpumask: use new cpumask API in drivers/infiniband/hw/ipathRusty Russell
Impact: cleanup We're moving from handing around cpumask_t's to handing around struct cpumask *'s. cpus_*, cpumask_t and cpu_*_map are deprecated: convert to cpumask_*, cpu_*_mask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ralph Campbell <infinipath@qlogic.com>
2008-12-30cpumask: use new cpumask API in drivers/infiniband/hw/ehcaRusty Russell
Impact: cleanup We're moving from handing around cpumask_t's to handing around struct cpumask *'s. cpus_*, cpumask_t and cpu_*_map are deprecated: convert to cpumask_*, cpu_*_mask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-30cpumask: use for_each_online_cpu() in drivers/infiniband/hw/ehca/ehca_irq.cRusty Russell
Impact: cleanup In future, accessing cpu numbers beyond nr_cpu_ids (the runtime limit) will be undefined. We can avoid future problems by using for_each_online_cpu() here. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-29[SCSI] libiscsi: pass opcode into alloc_pdu calloutMike Christie
We do not need to allocate a itt for data_out, so this passes the opcode to the alloc_pdu callout. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iser: convert iser to new alloc_pdu apiMike Christie
This just converts iser to new alloc_pdu api. It still preallocates the pdu, so there is no difference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits) net: Allow dependancies of FDDI & Tokenring to be modular. igb: Fix build warning when DCA is disabled. net: Fix warning fallout from recent NAPI interface changes. gro: Fix potential use after free sfc: If AN is enabled, always read speed/duplex from the AN advertising bits sfc: When disabling the NIC, close the device rather than unregistering it sfc: SFT9001: Add cable diagnostics sfc: Add support for multiple PHY self-tests sfc: Merge top-level functions for self-tests sfc: Clean up PHY mode management in loopback self-test sfc: Fix unreliable link detection in some loopback modes sfc: Generate unique names for per-NIC workqueues 802.3ad: use standard ethhdr instead of ad_header 802.3ad: generalize out mac address initializer 802.3ad: initialize ports LACPDU from const initializer 802.3ad: remove typedef around ad_system 802.3ad: turn ports is_individual into a bool 802.3ad: turn ports is_enabled into a bool 802.3ad: make ntt bool ixgbe: Fix set_ringparam in ixgbe to use the same memory pools. ... Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due to the conversion to %pI (in this networking merge) and the addition of doing IPv6 addresses (from the earlier merge of CIFS).
2008-12-26net: Fix warning fallout from recent NAPI interface changes.David S. Miller
When we removed the network device argument from several NAPI interfaces in 908a7a16b852ffd618a9127be8d62432182d81b4 ("net: Remove unused netdev arg from some NAPI interfaces.") several drivers now started getting unused variable warnings. This fixes those up. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-24Merge branches 'cma', 'ehca', 'ipath', 'iser', 'mlx4' and 'nes' into for-nextRoland Dreier
2008-12-24IB/mlx4: Set ownership bit correctly when copying CQEs during CQ resizeJack Morgenstein
When resizing a CQ, when copying over unpolled CQEs from the old CQE buffer to the new buffer, the ownership bit must be set appropriately for the new buffer, or the ownership bit in the new buffer gets corrupted. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24RDMA/nes: Remove tx_free_listFaisal Latif
There is no lock protecting tx_free_list thus causing a system crash when skb_dequeue() is called and the list is empty. Since it did not give any performance boost under heavy load, remove it to simplify the code. Replace get_free_pkt() with dev_alloc_skb() to allocate MAX_CM_BUFFER skb for connection establishment/teardown as well as MPA request/response. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24RDMA/cma: Add IPv6 supportAleksey Senin
Handle AF_INET6 cases where required, and use struct sockaddr_storage wherever an IPv6 address might be stored. Signed-off-by: Aleksey Senin <aleksey@alst60.(none)> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24RDMA/addr: Add support for translating IPv6 addressesAleksey Senin
Add support for translating AF_INET6 addresses to the IB address translation service. This requires using struct sockaddr_storage instead of struct sockaddr wherever an IPv6 address might be stored, and adding cases to handle IPv6 in addition to IPv4 to the various translation functions. Signed-off-by: Aleksey Senin <aleksey@alst60.(none)> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-22net: Remove unused netdev arg from some NAPI interfaces.Neil Horman
When the napi api was changed to separate its 1:1 binding to the net_device struct, the netif_rx_[prep|schedule|complete] api failed to remove the now vestigual net_device structure parameter. This patch cleans up that api by properly removing it.. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-22mlx4_core: Add support for multiple completion event vectorsYevgeny Petrilin
When using MSI-X mode, create a completion event queue for each CPU. Report the number of completion EQs in a new struct mlx4_caps member, num_comp_vectors, and extend the mlx4_cq_alloc() interface with a vector parameter so that consumers can specify which completion EQ should be used to report events for the CQ being created. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-21IB/iser: Avoid recv buffer exhaustion caused by unexpected PDUsDavid Disseldorp
iSCSI/iSER targets may send PDUs without a prior request from the initiator. RFC 5046 refers to these PDUs as "unexpected". NOP-In PDUs with itt=RESERVED and Asynchronous Message PDUs occupy this category. The amount of active "unexpected" PDU's an iSER target may have at any time is governed by the MaxOutstandingUnexpectedPDUs key, which is not yet supported. Currently when an iSER target sends an "unexpected" PDU, the initiators recv buffer consumed by the PDU is not replaced. If over initial_post_recv_bufs_num "unexpected" PDUs are received then the receive queue will run out of receive work requests entirely. This patch ensures recv buffers consumed by "unexpected" PDUs are replaced in the next iser_post_receive_control() call. Signed-off-by: David Disseldorp <ddiss@sgi.com> Signed-off-by: Ken Sandars <ksandars@sgi.com> Acked-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-21IB/ehca: Remove redundant test of vpageJulia Lawall
vpage is checked not to be NULL just after it is initialized at the beginning of each loop iteration. A simplified version of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; expression E; position p1,p2; @@ if (x@p1 == NULL || ...) { ... when forall return ...; } ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\) ( x@p2 == NULL | x@p2 != NULL ) // another path to the test that is not through p1? @s exists@ local idexpression r.x; position r.p1,r.p2; @@ ... when != x@p1 ( x@p2 == NULL | x@p2 != NULL ) @fix depends on !s@ position r.p1,r.p2; expression x,E; statement S1,S2; @@ ( - if ((x@p2 != NULL) || ...) S1 | - if ((x@p2 == NULL) && ...) S1 | - BUG_ON(x@p2 == NULL); ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ehca: Replace modulus operations in flush error completion pathStefan Roscher
With the latest flush error completion patch we introduced modulus operation to calculate the next index within a qmap. Based on comments from other mailing lists we decided to optimize this operation by using an addition and an if-statement instead of modulus, even though this is on the error path. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Add locking for interrupt use of ipath_pd contexts vs freeDave Olson
Fixes timing race resulting in panic. Not a performance sensitive path. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Fix spi_pioindex valueDave Olson
ipath_piobufbase was a single value offset, but is multiple values on newer chips, so use only the 32 bits for the 2K buffers (4K buffers are currently used only by the driver). Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Only do 1X workaround on rev1 chipsDave Olson
Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Don't count IB symbol and link errors unless link is UPDave Olson
Implement the ignoring of ibsymbol errors and linkrecover errors while the link is at less than INIT (long needed), to get accurate counts. Particularly an issue when doing non-IBTA DDR negotiation with chips from vendors that do not support IBTA mode negotiation. If the driver is unloaded, and there is a delta, the adjusted counters are written back to the chip, so they stay adjusted across driver reload. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Check return value of dma_map_single()Ralph Campbell
This fixes an obvious oversight where the return value is not checked for error. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ipath: Fix PSN of send WQEs after an RDMA read resendRalph Campbell
The PSN of the first packet after an RDMA read is based on the size of the RDMA read request. This is calculated correctly for the WQE sent after the first request message but not on subsequent requests if the RDMA read is resent. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Cleanup warningsChien Tung
Wrap NES_DEBUG and assert macros with do while (0) to avoid ambiguous else. No one is using sk_buff * returned from form_cm_frame(), so drop the return. drop_packet() should not be incrementing reset counter on receiving a FIN. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Add loopback check to make_cm_node()Chien Tung
Check for loopback connection in make_cm_node(). Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Check cqp_avail_reqs is empty after locking the listFaisal Latif
Between the first empty list check and locking the list, the list can change. Check it again after it is locked to make sure the list is still not empty. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Fix TCP compliance test failuresFaisal Latif
ANVL testing showed we are not handling all cm_node states during connection establishment. Add missing state handlers and fix sequence number send reset in handle_tcp_options(). Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Forward packets for a new connection with stale APBVT entryFaisal Latif
Under heavy traffic, there is a small windows when an APBVT entry is not yet removed and a new connection is established. Packets for the new connection are dropped until APBVT entry is removed. This patch will forward the packets instead of dropping them. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Avoid race between MPA request and reset event to rdma_cmFaisal Latif
In passive open, after indicating MPA request to rdma_cm, an incoming RST would fire a reset event to rdma_cm causing it to crash, since the current state is not connected. The solution is to wait for nes_accept() or nes_reject() before firing the reset event. If nes_accept() or nes_reject() is already done, then the reset event will be fired when RST is processed. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Lock down connected_nodes list while processing itFaisal Latif
While processing connected_nodes list, we would release the lock when we need to send reset to remote partner. That created a window where the list can be modified. Change this into a two step process: place nodes that need processing on a local list then process the local list. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05RDMA/nes: Cleanup cqp_request list usageFaisal Latif
Use nes_free_cqp_request() instead of open coding. Change some continue to break in nes_cm_timer_tick, because send_entry used to be a list processed in a loop (so continue went to the next item). Now it is a single item, so using break is correct. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-02Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/ixgbe/ixgbe_main.c drivers/net/smc91x.c
2008-12-01IB/ipath: Improve UD loopback performance by allocating temp array only onceRalph Campbell
Receive work queue entries are checked for L_Key validity, and pointers to the memory region structure are saved in an allocated structure. For UD loopback packets, this structure is allocated and freed for each packet. This patch changes that to allocate/free during QP creation and destruction. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ipath: Fix pointer-to-pointer thinko in ipath_fs.cMichael Ellerman
The return from lookup_one_len() is assigned to *dentry, so that's what we should be checking with IS_ERR(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ehca: Fix locking for shca_list_lockJoachim Fenkes
shca_list_lock is taken from softirq context in ehca_poll_eqs, so we need to lock IRQ safe elsewhere. Found by lockdep. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01Merge branches 'ehca' and 'mlx4' into for-linusRoland Dreier
2008-12-01IB/mlx4: Fix MTT leakage in resize CQJack Morgenstein
When resizing a CQ, MTTs associated with the old CQE buffer were not freed. As a result, if any app used resize CQ repeatedly, all MTTs were eventually exhausted, which led to all memory registration operations failing until the driver is reloaded. Once the RESIZE_CQ command returns successfully from FW, FW no longer accesses the old CQ buffer, so it is safe to deallocate the MTT entries used by the old CQ buffer. Finally, if the RESIZE_CQ command fails, the MTTs allocated for the new CQEs buffer also need to be de-allocated. This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1416>. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ehca: Fix problem with generated flush work completionsStefan Roscher
This fix enables ehca device driver to generate flush work completions even if the application doesn't request completions for all work requests. The current implementation of ehca will generate flush work completions for the wrong work requests if an application uses non signaled work completions. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ehca: Change misleading error message on memory hotplugJoachim Fenkes
The error message printed when the eHCA driver prevents memory hotplug is misleading -- the user might think that hot-removing the lhca, hotplugging memory, then hot-adding the lhca again will work, but it actually doesn't. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-11-24infiniband: Kill directly reference of netdev->privWang Chen
This use of netdev->priv is wrong. The right way is: alloc_netdev() with no memory for private data. make netdev->ml_priv to point to c2_dev. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Acked-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-18Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/isdn/i4l/isdn_net.c fs/cifs/connect.c
2008-11-12Merge branch 'for-linus' of ↵Linus Torvalds
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: IPoIB: Fix crash in path_rec_completion() IPoIB: Fix hang in ipoib_flush_paths() IPoIB: Don't enable NAPI when it's already enabled RDMA/cxgb3: Fix deadlock in iw_cxgb3 (hang when configuring interface) IB/ehca: Remove reference to special QP in case of port activation failure IB/mlx4: Set umem field to NULL in mlx4_ib_alloc_fast_reg_mr() mlx4_core: Fix unused variable warning RDMA/nes: Mitigate compatibility issue regarding PCIe write credits RDMA/nes: Fix CQ allocation scheme for multicast receive queue apps RDMA/nes: Correct handling of PBL resources RDMA/nes: Reindent mis-indented spinlocks RDMA/cxgb3: Fix too-big reserved field zeroing in iwch_post_zb_read() IB/ipath: Fix RDMA write with immediate copy of last packet
2008-11-12Merge branches 'cxgb3', 'ehca', 'ipath', 'ipoib', 'mlx4' and 'nes' into for-nextRoland Dreier
2008-11-12IPoIB: Fix crash in path_rec_completion()Yossi Etigin
Fix a crash in path_rec_completion() during an SM up/down loop. If more than one path record request is issued, the first completion releases path->done, allowing ipoib_flush_paths() to free the path, and thus corrupting it for the second completion. Commit ee1e2c82 ("IPoIB: Refresh paths instead of flushing them on SM change events") added the field path->valid and changed the test "if (!path)" to "if (!path || !path->valid)". This change made it possible for a path with an outstanding query to pass the test and issue another query on the same path. Having two queries on the same path leads to a crash. This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1325>. Signed-off-by: Yossi Etigin <yosefe@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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