blackbird-op-linux/drivers/infiniband, branch v4.5

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2016-03-05T02:06:49+00:00

Pull rdma fixes from Doug Ledford: "Additional 4.5-rc6 fixes. I have four patches today. I had previously thought I had submitted two of them last week, but they were accidentally skipped :-(. - One fix to an error path in the core - One fix for RoCE in the core - Two related fixes for the core/mlx5" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/core: Use GRH when the path hop-limit > 0 IB/{core, mlx5}: Fix input len in vendor part of create_qp/srq IB/mlx5: Avoid using user-index for SRQs IB/core: Fix missed clean call in registration path

IB/core: Use GRH when the path hop-limit > 0

2016-03-03T15:52:58+00:00

According to IBTA spec v1.3 section 12.7.19, QPs should use GRH when the path returned by the SA has hop-limit > 0. Currently, we do that only for the > 1 case, fix that. Fixes: 6d969a471ba1 ('IB/sa: Add ib_init_ah_from_path()') Signed-off-by: Or Gerlitz Reviewed-by: Jason Gunthorpe Signed-off-by: Doug Ledford

IB/{core, mlx5}: Fix input len in vendor part of create_qp/srq

2016-03-03T15:00:18+00:00

Currently, the inlen field of the vendor's part of the command doesn't match the command buffer. This happens because the inlen accommodates ib_uverbs_cmd_hdr which is deducted from the in buffer. This is problematic since the vendor function could be called either from the legacy verb (where the input length mismatches the actual length) or by the extended verb (where the length matches). The vendor has no idea which function calls it and therefore has no way to know how the length variable should be treated. Fixing this by aligning the inlen to the correct length. All vendor drivers either assumed that inlen >= sizeof(vendor_uhw_cmd) or just failed wrongly (mlx5) and fixed in this patch. Fixes: cfb5e088e26a ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs') Signed-off-by: Majd Dibbiny Reviewed-by: Matan Barak Reviewed-by: Haggai Eran Signed-off-by: Doug Ledford

IB/mlx5: Avoid using user-index for SRQs

2016-03-03T15:00:03+00:00

Normal SRQs, unlike XRC SRQs, don't have user-index, therefore avoid verifying it and using it. Fixes: cfb5e088e26a ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs') Signed-off-by: Majd Dibbiny Reviewed-by: Matan Barak Signed-off-by: Doug Ledford

IB/core: Fix missed clean call in registration path

2016-03-01T01:41:47+00:00

In case of failure returned from query function in IB device registration, we need to clean IB cache which was missed. This change fixes it. Fixes: 3e153a93a1c1 ('IB/core: Save the device attributes on the device structure') Signed-off-by: Leon Romanovsky Reviewed-by: Ira Weiny Reviewed-by: Sagi Grimberg Signed-off-by: Doug Ledford

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-02-22T20:18:07+00:00

Pull networking fixes from David Miller: "Looks like a lot, but mostly driver fixes scattered all over as usual. Of note: 1) Add conditional sched in nf conntrack in cleanup to avoid NMI watchdogs. From Florian Westphal. 2) Fix deadlock in nfnetlink cttimeout, also from Floarian. 3) Fix handling of slaves in bonding ARP monitor validation, from Jay Vosburgh. 4) Callers of ip_cmsg_send() are responsible for freeing IP options, some were not doing so. Fix from Eric Dumazet. 5) Fix per-cpu bugs in mvneta driver, from Gregory CLEMENT. 6) Fix vlan handling in mv88e6xxx DSA driver, from Vivien Didelot. 7) bcm7xxx PHY driver bug fixes from Florian Fainelli. 8) Avoid unaligned accesses to protocol headers wrt. GRE, from Alexander Duyck. 9) SKB leaks and other problems in arc_emac driver, from Alexander Kochetkov. 10) tcp_v4_inbound_md5_hash() releases listener socket instead of request socket on error path, oops. Fix from Eric Dumazet. 11) Missing socket release in pppoe_rcv_core() that seems to have existed basically forever. From Guillaume Nault. 12) Missing slave_dev unregister in dsa_slave_create() error path, from Florian Fainelli. 13) crypto_alloc_hash() never returns NULL, fix return value check in __tcp_alloc_md5sig_pool. From Insu Yun. 14) Properly expire exception route entries in ipv4, from Xin Long. 15) Fix races in tcp/dccp listener socket dismantle, from Eric Dumazet. 16) Don't set IFF_TX_SKB_SHARING in vxlan, geneve, or GRE, it's not legal. These drivers modify the SKB on transmit. From Jiri Benc. 17) Fix regression in the initialziation of netdev->tx_queue_len. From Phil Sutter. 18) Missing unlock in tipc_nl_add_bc_link() error path, from Insu Yun. 19) SCTP port hash sizing does not properly ensure that table is a power of two in size. From Neil Horman. 20) Fix initializing of software copy of MAC address in fmvj18x_cs driver, from Ken Kawasaki" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (129 commits) bnx2x: Fix 84833 phy command handler bnx2x: Fix led setting for 84858 phy. bnx2x: Correct 84858 PHY fw version bnx2x: Fix 84833 RX CRC bnx2x: Fix link-forcing for KR2 net: ethernet: davicom: fix devicetree irq resource fmvj18x_cs: fix incorrect indexing of dev->dev_addr[] when copying the MAC address Driver: Vmxnet3: Update Rx ring 2 max size net: netcp: rework the code for get/set sw_data in dma desc soc: ti: knav_dma: rename pad in struct knav_dma_desc to sw_data net: ti: netcp: restore get/set_pad_info() functionality MAINTAINERS: Drop myself as xen netback maintainer sctp: Fix port hash table size computation can: ems_usb: Fix possible tx overflow Bluetooth: hci_core: Avoid mixing up req_complete and req_complete_skb net: bcmgenet: Fix internal PHY link state af_unix: Don't use continue to re-execute unix_stream_read_generic loop unix_diag: fix incorrect sign extension in unix_lookup_by_ino bnxt_en: Failure to update PHY is not fatal condition. bnxt_en: Remove unnecessary call to update PHY settings. ...

net/mlx4_core: Set UAR page size to 4KB regardless of system page size

2016-02-17T15:29:27+00:00

problem description: The current code sets UAR page size equal to system page size. The ConnectX-3 and ConnectX-3 Pro HWs require minimum 128 UAR pages. The mlx4 kernel drivers are not loaded if there is less than 128 UAR pages. solution: Always set UAR page to 4KB. This allows more UAR pages if the OS has PAGE_SIZE larger than 4KB. For example, PowerPC kernel use 64KB system page size, with 4MB uar region, there are 4MB/2/64KB = 32 uars (half for uar, half for blueflame). This does not meet minimum 128 UAR pages requirement. With 4KB UAR page, there are 4MB/2/4KB = 512 uars which meet the minimum requirement. Note that only codes in mlx4_core that deal with firmware know that uar page size is 4KB. Codes that deal with usr page in cq and qp context (mlx4_ib, mlx4_en and part of mlx4_core) still have the same assumption that uar page size equals to system page size. Note that with this implementation, on 64KB system page size kernel, there are 16 uars per system page but only one uars is used. The other 15 uars are ignored because of the above assumption. Regarding SR-IOV, mlx4_core in hypervisor will set the uar page size to 4KB and mlx4_core code in virtual OS will obtain the uar page size from firmware. Regarding backward compatibility in SR-IOV, if hypervisor has this new code, the virtual OS must be updated. If hypervisor has old code, and the virtual OS has this new code, the new code will be backward compatible with the old code. If the uar size is big enough, this new code in VF continues to work with 64 KB uar page size (on PowerPc kernel). If the uar size does not meet 128 uars requirement, this new code not loaded in VF and print the same error message as the old code in Hypervisor. Signed-off-by: Huy Nguyen Reviewed-by: Yishai Hadas Signed-off-by: David S. Miller

IB/mlx4: Add support for the port info class for RoCE ports

2016-02-17T15:07:20+00:00

Report that driver supports IB_PMA_CLASS_CAP_EXT_WIDTH in respond for IB_MGMT_CLASS_PERF_MGMT mad with IB_PMA_CLASS_PORT_INFO attr id. Signed-off-by: Eran Ben Elisha Signed-off-by: Matan Barak Reviewed-by: Or Gerlitz Signed-off-by: Doug Ledford

IB/mlx4: Add support for extended counters over RoCE ports

2016-02-17T15:07:20+00:00

When attribute IB_PMA_PORT_COUNTERS_EXT is set, we now return 64 bit values for the counters. Signed-off-by: Eran Ben Elisha Signed-off-by: Matan Barak Reviewed-by: Or Gerlitz Signed-off-by: Doug Ledford

RDMA/ocrdma: Fix arm logic to align with new cq API

2016-02-17T15:07:20+00:00

Today ocrdma driver defer arming the CQ till poll is called. This was used to prevent calling poll-cq on an armed CQ. Recently a set of new CQ API has been introduced into the linux kernel. The implementation of this API guarantees that a given CQ is never armed before calling poll on it. Most of the kernel ULPs have already moved to use this new API or have a code where poll is called before arming the CQ. Thus, the above workaround in ocrdma is not needed anymore. This patch removes the additional logic to deffer arm till poll is called. This patch adds a simple scheme where ib_req_notify_cq() will actually arm the cq. Signed-off-by: Devesh Sharma Signed-off-by: Doug Ledford