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| | * | | RDMA/nes: Enable the use of the tos field in the nes driverFaisal Latif2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RDMA/nes: Enable the use of the tos field in the nes driver Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | | | IB/core cleanup: Add const on args - device->process_madIra Weiny2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The process_mad device function declares some parameters as "in". Make those parameters const and adjust the call tree under process_mad in the various drivers accordingly. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Hal Rosenstock <hal@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | | | IB/core: Convert core to use bitfield for capsIra Weiny2015-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove query_protocol callback Use the new Core Capability bits for: rdma_protocol_* rdma_cap_ib_mad rdma_cap_ib_smi rdma_cap_ib_cm rdma_cap_iw_cm rdma_cap_ib_sa rdma_cap_ib_mcast rdma_cap_af_ib rdma_cap_eth_ah Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | | | IB/core: Add per port immutable struct to ib_deviceIra Weiny2015-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of commit 5eb620c81ce3 "IB/core: Add helpers for uncached GID and P_Key searches"; pkey_tbl_len and gid_tbl_len are immutable data which are stored in the ib_device. The per port core capability flags to be added later are also immutable data to be stored in the ib_device object. In preparation for this create a structure for per port immutable data and place the pkey and gid table lengths within this structure. "get_port_immutable" is added as a mandatory device function to allow the drivers to fill in this data. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | | | IB/Verbs: Implement new callback query_protocol()Michael Wang2015-05-18
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new callback query_protocol() and implement for each HW. Mapping List: node-type link-layer transport protocol nes RNIC ETH IWARP IWARP amso1100 RNIC ETH IWARP IWARP cxgb3 RNIC ETH IWARP IWARP cxgb4 RNIC ETH IWARP IWARP usnic USNIC_UDP ETH USNIC_UDP USNIC_UDP ocrdma IB_CA ETH IB IBOE mlx4 IB_CA IB/ETH IB IB/IBOE mlx5 IB_CA IB IB IB ehca IB_CA IB IB IB ipath IB_CA IB IB IB mthca IB_CA IB IB IB qib IB_CA IB IB IB Signed-off-by: Michael Wang <yun.wang@profitbricks.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | / / x86/mm/pat, drivers/infiniband/ipath: Use arch_phys_wc_add() and require PAT ↵Luis R. Rodriguez2015-06-18
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | disabled We are burrying direct access to MTRR code support on x86 in order to take advantage of PAT. In the future, we also want to make the default behaviour of ioremap_nocache() to use strong UC, use of mtrr_add() on those systems would make write-combining void. In order to help both enable us to later make strong UC default and in order to phase out direct MTRR access code port the driver over to arch_phys_wc_add() and annotate that the device driver requires systems to boot with PAT disabled, with the 'nopat' kernel parameter. This is a workable compromise given that the ipath device driver powers the old HTX bus cards that only work in AMD systems, while the newer IB/qib device driver powers all PCI-e cards. The ipath device driver is obsolete, hardware is hard to find and because of this its a reasonable compromise to require users of ipath to boot with 'nopat'. Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Doug Ledford <dledford@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Walls <awalls@md.metrocast.net> Cc: Antonino Daplas <adaplas@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: Roger Pau Monné <roger.pau@citrix.com> Cc: Roland Dreier <roland@purestorage.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Stefan Bader <stefan.bader@canonical.com> Cc: Suresh Siddha <sbsiddha@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Ville Syrjälä <syrjala@sci.fi> Cc: infinipath@intel.com Cc: jbeulich@suse.com Cc: konrad.wilk@oracle.com Cc: linux-rdma@vger.kernel.org Cc: mchehab@osg.samsung.com Cc: toshi.kani@hp.com Link: http://lkml.kernel.org/r/1434053994-2196-4-git-send-email-mcgrof@do-not-panic.com Link: http://lkml.kernel.org/r/1434356898-25135-5-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | RDMA/ocrdma: Update ocrdma version numberSelvin Xavier2015-05-18
| | | | | | | | | | | | | | | | | | | | | Updating the driver version to 10.6.0.0 Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Fail connection for MTU lesser than 512Naga Irrinki2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | HW currently restricts the IB MTU range between 512 and 4096. Fail connection for MTUs lesser than 512. Signed-off-by: Naga Irrinki <naga.irrinki@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Fix dmac resolution for link local addressMitesh Ahuja2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rdma_addr_find_dmac_by_grh fails to resolve dmac for link local address. Use rdma_get_ll_mac to resolve the link local address. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Mitesh Ahuja <mitesh.ahuja@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Prevent allocation of DPP PDs if FW doesnt support itMitesh Ahuja2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | If DPP PDs are not supported by the FW, allocate only normal PDs. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@avagotech.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Fix the request length for RDMA_QUERY_QP mailbox command to FW.Mitesh Ahuja2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | Fix ocrdma_query_qp to pass correct mailbox request length to FW. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Use VID 0 if PFC is enabled and vlan is not configuredDevesh Sharma2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the adapter ports are in PFC mode and VLAN is not configured, use vlan tag 0 for RoCE traffic. Also, log an advisory message in system logs. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Fix QP state transition in destroy_qpDevesh Sharma2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Don't move QP to error state, if QP is in reset state during QP destroy operation. Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Report EQ full fatal errorDevesh Sharma2015-05-18
| | | | | | | | | | | | | | | | | | | | | | | | Detect when Event Queue (EQ) becomes full and print a warning message. Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | RDMA/ocrdma: Fix EQ destroy failure during driver unloadSelvin Xavier2015-05-18
|/ / | | | | | | | | | | | | | | | | Changing the destroy sequence of mailbox queue and event queues. FW expects mailbox queue to be destroyed before desroying the EQs. Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | infiniband: Remove duplicated KERN_<LEVEL> from pr_<level> usesJoe Perches2015-05-12
| | | | | | | | | | | | | | | | | | These KERN_<LEVEL> uses are unnecessary with pr_<level> and cause bad logging output so remove them. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | IB/qib: fix test of unsigned variableMike Marciniszyn2015-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d4988623cc60 ("IB/qib: use arch_phys_wc_add()") adjusted mtrr inititialization to use the new interface. Unfortunately, the new interface returns a signed value and the patch tested the unsigned wc_cookie. Fix the issue by changing the type of wc_cookie to int. For the success case the ret left at zero to avoid a warning from the caller. For failure wc_cookie is used as the ret. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | iw_cxgb4: use wildcard mapping for getting remote addr infoSteve Wise2015-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For listening endpoints bound to the wildcard address, we need to pass the wildcard address mapping to iwpm_get_remote_info() instead of the mapped address of the new child connection. Without this fix, and with iwarp port mapping enabled, each iw_cxgb4 connection that is spawned from a listening endpoint bound to the wildcard address, will generate an annoying dmesg entry about failing to find the remote address mapping info, and the connection state displayed in debugfs under /sys/kernel/debug/iw_cxgb4/<pci-slot-no>/eps will not have the peer's address/port mapping info. The connection still works though. Fixes: 5b6b8fe ("RDMA/cxgb4: Report the actual address of the remote connecting peer") Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | IB/ehca: use correct destination for memcpyNicholas Mc Guire2015-05-11
|/ | | | | | | | | | Using an element of a struct as the address for the memcpy of the whole struct may introduce a buffer overflow and does not help readability either simply pass the real thing as first argument to memcpy. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
* iw_cxgb4: Remove negative advice dmesg warningsHariprasad S2015-05-05
| | | | | | | | | Remove these log messages in favor of per-endpoint counters as well as device-global counters that can be inspected via debugfs. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/qib: use arch_phys_wc_add()Luis R. Rodriguez2015-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver already makes use of ioremap_wc() on PIO buffers, so convert it to use arch_phys_wc_add(). The qib driver uses a mmap() special case for when PAT is not used, this behaviour used to be determined with a module parameter but since we have been asked to just remove that module parameter this checks for the WC cookie, if not set we can assume PAT was used. If its set we do what we used to do for the mmap for when MTRR was enabled. The removal of the module parameter is OK given that Andy notes that even if users of module parameter are still around it will not prevent loading of the module on recent kernels. Cc: Doug Ledford <dledford@redhat.com> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: Roland Dreier <roland@purestorage.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Suresh Siddha <sbsiddha@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Juergen Gross <jgross@suse.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Antonino Daplas <adaplas@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Stefan Bader <stefan.bader@canonical.com> Cc: konrad.wilk@oracle.com Cc: ville.syrjala@linux.intel.com Cc: david.vrabel@citrix.com Cc: jbeulich@suse.com Cc: Roger Pau Monné <roger.pau@citrix.com> Cc: infinipath@intel.com Cc: linux-rdma@vger.kernel.org Cc: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: xen-devel@lists.xensource.com Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/qib: add acounting for MTRRLuis R. Rodriguez2015-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | There is no good reason not to, we eventually delete it as well. Cc: Toshi Kani <toshi.kani@hp.com> Cc: Suresh Siddha <sbsiddha@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Juergen Gross <jgross@suse.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Airlie <airlied@redhat.com> Cc: Antonino Daplas <adaplas@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Mike Marciniszyn <infinipath@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/cxgb4: Report the actual address of the remote connecting peerSteve Wise2015-05-05
| | | | | | | | | | | Get the actual (non-mapped) ip/tcp address of the connecting peer from the port mapper Also setup the passive side endpoint to correctly display the actual and mapped addresses for the new connection. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/nes: Report the actual address of the remote connecting peerTatyana Nikolova2015-05-05
| | | | | | | | | Get the actual (non-mapped) ip/tcp address of the connecting peer from the port mapper and report the address info to the user space application at the time of connection establishment Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* iw_cxgb4: enforce qp/cq id requirementsHariprasad S2015-05-05
| | | | | | | | | | | | | | | | Currently the iw_cxgb4 implementation requires the qp and cq qid densities to match as well as the qp and cq id ranges. So fail a device open if the device configuration doesn't meet the requirements. The reason for these restictions has to do with the fact that IQ qid X has a UGTS register in the same bar2 page as EQ qid X. Thus both qids need to be allocated to the same user process for security reasons. The logic that does this (the qpid allocator in iw_cxgb4/resource.c) handles this but requires the above restrictions. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* iw_cxgb4: use BAR2 GTS register for T5 kernel mode CQsHariprasad S2015-05-05
| | | | | | | | | For T5, we must not use the kdb/kgts registers, in order avoid db drops under extreme loads. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* iw_cxgb4: 32b platform fixesHariprasad S2015-05-05
| | | | | | | | | | | | | | | - get_dma_mr() was using ~0UL which is should be ~0ULL. This causes the DMA MR to get setup incorrectly in hardware. - wr_log_show() needed a 64b divide function div64_u64() instead of doing division directly. - fixed warnings about recasting a pointer to a u64 Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* iw_cxgb4: Cleanup register defines/MACROSHariprasad S2015-05-05
| | | | | | | Cleanup macros and register defines for consistency Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2015-04-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fourth vfs update from Al Viro: "d_inode() annotations from David Howells (sat in for-next since before the beginning of merge window) + four assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() VFS: assorted d_backing_inode() annotations VFS: fs/inode.c helpers: d_inode() annotations VFS: fs/cachefiles: d_backing_inode() annotations VFS: fs library helpers: d_inode() annotations VFS: assorted weird filesystems: d_inode() annotations VFS: normal filesystems (and lustre): d_inode() annotations VFS: security/: d_inode() annotations VFS: security/: d_backing_inode() annotations VFS: net/: d_inode() annotations VFS: net/unix: d_backing_inode() annotations VFS: kernel/: d_inode() annotations VFS: audit: d_backing_inode() annotations VFS: Fix up some ->d_inode accesses in the chelsio driver VFS: Cachefiles should perform fs modifications on the top layer only VFS: AF_UNIX sockets should call mknod on the top layer only
| * VFS: assorted weird filesystems: d_inode() annotationsDavid Howells2015-04-15
| | | | | | | | | | Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge tag 'rdma-for-linus' of ↵Linus Torvalds2015-04-22
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull InfiniBand/RDMA updates from Roland Dreier: - IPoIB fixes from Doug Ledford and Erez Shitrit - iSER updates from Sagi Grimberg - mlx4 GUID handling changes from Yishai Hadas - other misc fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (51 commits) mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures IB/iser: Rewrite bounce buffer code path IB/iser: Bump version to 1.6 IB/iser: Remove code duplication for a single DMA entry IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr IB/iser: Modify struct iser_mem_reg members IB/iser: Make fastreg pool cache friendly IB/iser: Move PI context alloc/free to routines IB/iser: Move fastreg descriptor pool get/put to helper functions IB/iser: Merge build page-vec into register page-vec IB/iser: Get rid of struct iser_rdma_regd IB/iser: Remove redundant assignments in iser_reg_page_vec IB/iser: Move memory reg/dereg routines to iser_memory.c IB/iser: Don't pass ib_device to fall_to_bounce_buff routine IB/iser: Remove a redundant struct iser_data_buf IB/iser: Remove redundant cmd_data_len calculation IB/iser: Fix wrong calculation of protection buffer length IB/iser: Handle fastreg/local_inv completion errors IB/iser: Fix unload during ep_poll wrong dereference ib_srpt: convert printk's to pr_* functions ...
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| *---. \ Merge branches 'cve-fixup', 'ipoib', 'iser', 'misc-4.1', 'or-mlx4' and 'srp' ↵Doug Ledford2015-04-15
| |\ \ \ \ | | | | | | | | | | | | | | | | | | into for-4.1
| | | | * | IB/mlx4: Change alias guids default to be host assignedYishai Hadas2015-04-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the default mode to be HOST assigned instead of SM assigned. This is the expected operational mode, because it doesn't depend on SM availability. As PF generates random GUIDs as the initial admin values, this gives out of the box experience. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | | | * | IB/mlx4: Request alias GUID on demandYishai Hadas2015-04-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Request GIDs from the SM on demand, i.e., when a VF actually needs them, and release them when the GIDs are no longer in use. In cloud environments, this is useful for GID migrations, in which a GID is assigned to a VF on the destination HCA, while the VF on the source HCA is shutdown (but the GID was not administratively released). Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | | | * | IB/mlx4: Change init flow to request alias GUIDs for active VFsYishai Hadas2015-04-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the init flow to ask GUIDs only for active VFs. This is done for both SM & HOST modes so that there is no need any more to maintain the ownership record type. In case SM mode is used, the initial value will be 0, ask the SM to assign, for the HOST mode the initial value will be the HOST generated GUID. This will enable out of the box experience for both probed and attached VFs. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | | | * | IB/mlx4: Manage admin alias GUID upon admin requestYishai Hadas2015-04-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set the admin alias GUID per the administrator's request via the sysfs mechanism into the core layer. The "get" request returns the current value. However, if the administrator requests the SM to assign a new value by requesting 0, the SM assigned GUID is returned. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | | | * | IB/mlx4: Alias GUID adding persistency supportYishai Hadas2015-04-15
| | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the SM rejects an alias GUID request the PF driver keeps trying to acquire the specified GUID indefinitely, utilizing an exponential backoff scheme. Retrying is managed per GUID entry. Each entry that wasn't applied holds its next retry information. Retry requests to the SM consist of records of 8 consecutive GUIDS. Each record that contains GUIDs requiring retries holds its next time-to-run based on the retry information of all its GUID entries. The record having the lowest retry time will run first when that retry time arrives. Since the method (SET or DELETE) as sent to the SM applies to all the GUIDs in the record, we must handle SET requests and DELETE requests in separate SM messages (one for SETs and the other for DELETEs). To avoid race conditions where a GUID entry request (set or delete) was modified after the SM request was sent, we save the method and the requested indices as part of the callback's context -- thus, only the requested indexes are evaluated when the response is received. When an GUID entry is approved we turn off its retry-required bit, this prevents redundant SM retries from occurring on that record. The port down event should be sent only when previously it was up. Likewise, the port up event should be sent only if previously the port was down. Synchronization was added around the flows that change entries and record state to prevent race conditions. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | | * | infiniband/mlx4: check for mapping errorSebastian Ott2015-04-15
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since ib_dma_map_single can fail use ib_dma_mapping_error to check for errors. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * | IB/mlx4: Fix WQE LSO segment calculationErez Shitrit2015-04-15
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code decreases from the mss size (which is the gso_size from the kernel skb) the size of the packet headers. It shouldn't do that because the mss that comes from the stack (e.g IPoIB) includes only the tcp payload without the headers. The result is indication to the HW that each packet that the HW sends is smaller than what it could be, and too many packets will be sent for big messages. An easy way to demonstrate one more aspect of the problem is by configuring the ipoib mtu to be less than 2*hlen (2*56) and then run app sending big TCP messages. This will tell the HW to send packets with giant (negative value which under unsigned arithmetics becomes a huge positive one) length and the QP moves to SQE state. Fixes: b832be1e4007 ('IB/mlx4: Add IPoIB LSO support') Reported-by: Matthew Finlay <matt@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-04-17
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix verifier memory corruption and other bugs in BPF layer, from Alexei Starovoitov. 2) Add a conservative fix for doing BPF properly in the BPF classifier of the packet scheduler on ingress. Also from Alexei. 3) The SKB scrubber should not clear out the packet MARK and security label, from Herbert Xu. 4) Fix oops on rmmod in stmmac driver, from Bryan O'Donoghue. 5) Pause handling is not correct in the stmmac driver because it doesn't take into consideration the RX and TX fifo sizes. From Vince Bridgers. 6) Failure path missing unlock in FOU driver, from Wang Cong. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits) net: dsa: use DEVICE_ATTR_RW to declare temp1_max netns: remove BUG_ONs from net_generic() IB/ipoib: Fix ndo_get_iflink sfc: Fix memcpy() with const destination compiler warning. altera tse: Fix network-delays and -retransmissions after high throughput. net: remove unused 'dev' argument from netif_needs_gso() act_mirred: Fix bogus header when redirecting from VLAN inet_diag: fix access to tcp cc information tcp: tcp_get_info() should fetch socket fields once net: dsa: mv88e6xxx: Add missing initialization in mv88e6xxx_set_port_state() skbuff: Do not scrub skb mark within the same name space Revert "net: Reset secmark when scrubbing packet" bpf: fix two bugs in verification logic when accessing 'ctx' pointer bpf: fix bpf helpers to use skb->mac_header relative offsets stmmac: Configure Flow Control to work correctly based on rxfifo size stmmac: Enable unicast pause frame detect in GMAC Register 6 stmmac: Read tx-fifo-depth and rx-fifo-depth from the devicetree stmmac: Add defines and documentation for enabling flow control stmmac: Add properties for transmit and receive fifo sizes stmmac: fix oops on rmmod after assigning ip addr ...
| * | cxgb4: drop __GFP_NOFAIL allocationMichal Hocko2015-04-16
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_filter_wr is requesting __GFP_NOFAIL allocation although it can return ENOMEM without any problems obviously (t4_l2t_set_switching does that already). So the non-failing requirement is too strong without any obvious reason. Drop __GFP_NOFAIL and reorganize the code to have the failure paths easier. The same applies to _c4iw_write_mem_dma_aligned which uses __GFP_NOFAIL and then checks the return value and returns -ENOMEM on failure. This doesn't make any sense what so ever. Either the allocation cannot fail or it can. del_filter_wr seems to be safe as well because the filter entry is not marked as pending and the return value is propagated up the stack up to c4iw_destroy_listen. Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Dave Chinner <david@fromorbit.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Mel Gorman <mgorman@suse.de> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: "David S. Miller" <davem@davemloft.net> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Jan Kara <jack@suse.cz> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* / infinibad: weird APIs switched to ->write_iter()Al Viro2015-04-11
|/ | | | | | | | | | | | Things Not To Do When Writing A Driver, part 1001st: have writev() and write() on the same file doing completely different things. As in, "interpret very different sets of commands". We _can_ handle that, but it's a bloody bad idea. Don't do that in new drivers. Ever. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'iocb' into for-davemAl Viro2015-04-09
|\ | | | | | | | | | | | | trivial conflict in net/socket.c and non-trivial one in crypto - that one had evaded aio_complete() removal. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fs: move struct kiocb to fs.hChristoph Hellwig2015-03-25
| | | | | | | | | | | | | | | | struct kiocb now is a generic I/O container, so move it to fs.h. Also do a #include diet for aio.h while we're at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | net/mlx5_core: Extend struct mlx5_interface to support multiple protocolsSaeed Mahameed2015-04-02
| | | | | | | | | | | | | | | | | | Preparation for ethernet driver. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5_core: Modify arm CQ in preparation for upcoming Ethernet driverSaeed Mahameed2015-04-02
| | | | | | | | | | | | | | | | Pass consumer index as a parameter to arm CQ Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5_core: Move completion eqs from mlx5_ib to mlx5_coreSaeed Mahameed2015-04-02
| | | | | | | | | | | | | | | | | | | | Preparation for ethernet driver. These functions will be used in drivers other than mlx5_ib. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | IB/mlx5: Fix Mellanox copyright noteSaeed Mahameed2015-04-02
| | | | | | | | | | | | | | Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5_core: Clear doorbell record inside mlx5_db_alloc()Saeed Mahameed2015-04-02
| | | | | | | | | | | | | | | | | | Do it in one place instead of every where the function is invoked Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5_core: Coding style fixEli Cohen2015-04-02
| | | | | | | | | | | | | | Put a line of space before return and next statement. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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