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* Merge branch 'for-linus' of ↵Linus Torvalds2010-12-02
|\ | | | | | | | | | | | | | | | | | | | | | | | | 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
| * IB/mlx4: Fix IBoE link stateEli Cohen2010-12-01
| | | | | | | | | | | | | | | | 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>
| * IB/mlx4: Fix IBoE reported link rateEli Cohen2010-12-01
| | | | | | | | | | | | | | | | | | 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>
| * IB/mlx4: Fix memory ordering of VLAN insertion control bitsEli Cohen2010-12-01
| | | | | | | | | | | | | | | | | | | | | | 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>
* | BKL: remove extraneous #include <smp_lock.h>Arnd Bergmann2010-11-17
| | | | | | | | | | | | | | | | | | | | 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>
* | convert get_sb_single() usersAl Viro2010-10-29
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-10-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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() ...
| * fs: do not assign default i_ino in new_inodeChristoph Hellwig2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-10-26
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| *---------------. Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'ehca', 'iboe', 'ipoib', ↵Roland Dreier2010-10-26
| |\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'misc', 'mlx4', 'nes', 'qib' and 'srp' into for-next
| | | | | | | | | | * IB/qib: clean up properly if pci_set_consistent_dma_mask() failsJason Gunthorpe2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | | * IB/qib: Allow driver to load if PCIe AER failsRalph Campbell2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | | * IB/qib: Fix uninitialized pointer if CONFIG_PCI_MSI not setRalph Campbell2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | | * IB/qib: Fix extra log level in qib_early_err()Jason Gunthorpe2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | | * IB/qib: Process RDMA WRITE ONLY with IMMEDIATE properlyJason Gunthorpe2010-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | See table 35 in IBA - the header order for RDMA_WRITE_ONLY_WITH_IMMEDIATE and SEND_LAST_WITH_IMMEDIATE is different: the RDMA_WRITE_ONLY has a RETH header before the immediate data, so we need a different code path to extract the immediate data. I tested this with a userspace app that does RDMA_WRITE with immediate on a QLE7140. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | | | * IB/qib: Remove unnecessary casts of private_dataJoe Perches2010-10-06
| | | |_|_|_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | | * RDMA/nes: Turn carrier off on ifdownMaciej Sosnowski2010-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This lets the bonding driver to detect when an interface goes down. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | | * RDMA/nes: Report correct port state if interface is downChien Tung2010-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit cd6860eb ("RDMA/nes: Fix hangs on ifdown") we no longer remove nes interfaces on ifdown. On nes_query_port(), add an additional check of the netdev queue and report IB_PORT_DOWN if the queue is not running. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | | * RDMA/nes: Remove unneeded variableDan Carpenter2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just a small cleanup. The "passive_state" variable isn't used any more after commit dae58728dc ("RDMA/nes: Fix double CLOSE event indication crash") Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | | * RDMA/nes: Fix cast-to-pointer warnings on 32-bitRoland Dreier2010-09-27
| | | |_|_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_alloc_fast_reg_page_list': drivers/infiniband/hw/nes/nes_verbs.c:477: warning: cast to pointer from integer of different size drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_post_send': drivers/infiniband/hw/nes/nes_verbs.c:3486: warning: cast to pointer from integer of different size drivers/infiniband/hw/nes/nes_verbs.c:3486: warning: cast to pointer from integer of different size by printing u64 quantities by casting to unsigned long and long and using %llx, rather than casting to void* and using %p. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | * IB/mlx4: Signal node desc changes to SM by using FW to generate trap 144Jack Morgenstein2010-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Node Description cannot be changed via MADs (it is read-only). Until now, it was changed in the driver via sysfs, and the new Node Description was simply inserted by the driver into MAD responses (replacing the description returned by FW). System startup scripts use the sysfs interface to change the node description at driver startup to show the hostname, etc. However, this has a race condition: the SM could discover the original FW node description rather than the system-specific description if it queried the port before the startup scripts finish running. For mlx4, we fix this with a new FW command (SET_NODE) that allows passing the new node description to FW. When this command is invoked, FW sends a trap 144 to the SM. When it gets this trap, the SM can query the node to obtain the new node description -- thus eliminating the effects of the race. This patch simply calls SET_NODE command when a new node description is entered via sysfs (thus causing trap 144 to be issued by the FW). We ignore all failures of the SET_NODE command (including those caused by using a device FW that predates the SET_NODE command), since in that case things work just as before. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | | * IB/mlx4: Limit size of fast registration WRsEli Cohen2010-10-11
| | | |_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the limit on the size of max fast registration WRs that can be posted to match hardware capabilities. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | | * IB: Replace EXTRA_CFLAGS with ccflags-ymatt mooney2010-10-23
| | | |_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: matt mooney <mfm@muteddisk.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | | * IB/mlx4: Add VLAN support for IBoEEli Cohen2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | * IB/core: Add VLAN support for IBoEEli Cohen2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | * IB/mlx4: Add support for IBoEEli Cohen2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | * IB/pack: IBoE UD packet packing supportEli Cohen2010-10-14
| | | |_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for packing IBoE packet headers. Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Clean up and fix ib_ud_header_init() a bit. - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | | * IB/ehca: Fix driver on relocatable kernelSonny Rao2010-10-06
| | | |_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the eHCA driver registers a MR for all of kernel memory, but makes the assumption that valid memory exists at KERNELBASE. This assumption may not be true in the case of a relocatable kernel, so use KERNELBASE + PHYSICAL_START to get the true beginning of usable kernel memory. cc: Joachim Fenkes <fenkes@de.ibm.com> cc: Christoph Raisch <raisch@de.ibm.com> cc: Hoan-Ham Hguyen <hnguyen@de.ibm.com> Signed-off-by: Sonny Rao <sonnyrao@us.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Remove unnecessary KERN_<level> useJoe Perches2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Use cxgb4 service for packet gl to skbSteve Wise2010-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the local service t4_pktgl_to_skb() and use cxgb4_pktgl_to_skb() exported by cxgb4. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Export T4 TCP MIBSteve Wise2010-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Use simple_read_from_buffer() for debugfs handlersSteve Wise2010-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can replace our equivalent open-coded version. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Add default_llseek to debugfs filesSteve Wise2010-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Incorporate BKL removal changes. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Fastreg NSMR fixesSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Remove dsgl support - doesn't work in T4. - Wrap the immediate PBL as needed when building it in the wr. - Adjust max pbl depth allowed based on ulptx alignment requirements. - Bump the slots per SQ to 5 to allow up to 128MB fast registers. - Advertise fastreg support by default. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Don't set completion flag for read requestsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Set the default TCP send window to 128KBSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This helps with large IO throughput. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Use a mutex for QP and EP state transitionsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the connection setup/teardown paths to the workq thread removing spin lock/irq disable requirements for these paths. This allows calls down to the LLD for EP and QP state transition actions to be atomic with respect to processing CPL messages coming up from the HW. Namely, calls to rdma_init() and rdma_fini() can now be called with the mutex held avoiding many race conditions with the abort path. The QP spinlock is still used but only to manipulate the qp state. This allows the fastpaths, poll, post_send, and pos_recv, to run in the irq context. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Support on-chip SQsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T4 support on-chip SQs to reduce latency. This patch adds support for this in iw_cxgb4: - Manage ocqp memory like other adapter mem resources. - Allocate user mode SQs from ocqp mem if available. - Map ocqp mem to user process using write combining. - Map PCIE_MA_SYNC reg to user process. Bump uverbs ABI. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Centralize the wait logicSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: debugfs files for dumping active stagsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add "stags" debugfs file. This is useful for examining the TPTE and PBL entries in adapter memory. It allows scripts to dump just the active entries. Also clean up the "qps" file handlers and shared common code. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Log HW lack-of-resource errorsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This helps debug cases where HW resources are depleted. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Handle CPL_RDMA_TERMINATE messagesSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T4 FW sends up CPL_RDMA_TERMINATE to indicate a peer TERM. This triggers the QP moving to TERMINATE state. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Ignore TERMINATE CQEsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T4 incorrectly inserts TERM CQEs into the CQ. Silently ignore them. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Ignore positive return values from cxgb4_*_send() functionsSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cxgb4_*_send() functions return NET_XMIT_ values, which are positive integers or negative errno values. So don't treat positive return values as an error. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Zero out ISGL paddingSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HW design requires zeroing any pad in SGLs. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Don't use null ep ptrSteve Wise2010-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In c4iw_modify_qp() error path, only use qhp->ep if ep is not already set. Otherwise qhp->ep can be NULL and we crash. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | | * RDMA/cxgb4: Fix warnings about casts to/from pointers of different sizesRoland Dreier2010-09-27
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: drivers/infiniband/hw/cxgb4/qp.c: In function ‘create_qp’: drivers/infiniband/hw/cxgb4/qp.c:147: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/qp.c: In function ‘rdma_fini’: drivers/infiniband/hw/cxgb4/qp.c:988: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/qp.c: In function ‘rdma_init’: drivers/infiniband/hw/cxgb4/qp.c:1063: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/mem.c: In function ‘write_adapter_mem’: drivers/infiniband/hw/cxgb4/mem.c:74: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/cq.c: In function ‘destroy_cq’: drivers/infiniband/hw/cxgb4/cq.c:58: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/cq.c: In function ‘create_cq’: drivers/infiniband/hw/cxgb4/cq.c:135: warning: cast from pointer to integer of different size drivers/infiniband/hw/cxgb4/cm.c: In function ‘fw6_msg’: drivers/infiniband/hw/cxgb4/cm.c:2326: warning: cast to pointer from integer of different size by casting pointers to unsigned long instead of u64. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * RDMA/cxgb3: Remove unnecessary KERN_<level> useJoe Perches2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * RDMA/cxgb3: When a user QP is marked in error, also mark the CQs in errorSteve Wise2010-10-23
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The flushing of work requests for user QPs is implemented entirely in the user mode library. The only kernel interaction is to mark the user QP object indicating it is in error when the QP exits RTS. When the user QP operations are called by the application (eg: post_send, post_recv), the QP in error bit is checked and if set, the library flushes the QP. If, however, the application is not doing IO, but rather just polling the CQ, it will never get flushed work requests. This breaks some classes of applications. This patch adds logic to mark user CQs in error when a QP that is bound to the CQ is marked in error. The library poll code can then notice the CQ is in error and flush all the in error QPs bound to that CQ. Design: - add 1 extra CQE entry to the CQ memory that will be used to indicate in error status. - return the desired CQ memory size that should be mapped by the library - bump the ABI since the create_cq uverbs response changes. - detect older libraries and reduce the mmap size accordingly. (The ABI bump doesn't break old libraries, since they didn't check the ABI field anyway) Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * / RDMA/amso1100: Remove KERN_<level> from pr_<level> useJoe Perches2010-09-28
| |/ | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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