diff options
author | Jens Axboe <axboe@kernel.dk> | 2018-02-07 15:54:20 -0700 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2018-02-07 15:54:20 -0700 |
commit | 61a695184fcc8f225327206b88320279dd8684af (patch) | |
tree | 6cbda2b0e7de94ebad95072d17cc0aa82c9d8ab3 /drivers/infiniband/hw/qedr/main.c | |
parent | 9e05c864993c5442227f83ae1694a737d7a102ed (diff) | |
parent | 581e400ff935d34d95811258586128bf11baef15 (diff) |
Merge branch 'master' into test
* master: (1190 commits)
ASoC: stm32: add of dependency for stm32 drivers
ASoC: mt8173-rt5650: fix child-node lookup
ASoC: dapm: fix debugfs read using path->connected
platform/x86: samsung-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
platform/x86: ideapad-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
platform/x86: dell-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
Documentation/sysctl/user.txt: fix typo
MAINTAINERS: update ARM/QUALCOMM SUPPORT patterns
MAINTAINERS: update various PALM patterns
MAINTAINERS: update "ARM/OXNAS platform support" patterns
MAINTAINERS: update Cortina/Gemini patterns
MAINTAINERS: remove ARM/CLKDEV SUPPORT file pattern
MAINTAINERS: remove ANDROID ION pattern
mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors
mm: docs: fix parameter names mismatch
mm: docs: fixup punctuation
pipe: read buffer limits atomically
pipe: simplify round_pipe_size()
pipe: reject F_SETPIPE_SZ with size over UINT_MAX
...
Diffstat (limited to 'drivers/infiniband/hw/qedr/main.c')
-rw-r--r-- | drivers/infiniband/hw/qedr/main.c | 59 |
1 files changed, 8 insertions, 51 deletions
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index a9c3378bca38..db4bf97c0e15 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -430,59 +430,16 @@ static void qedr_remove_sysfiles(struct qedr_dev *dev) static void qedr_pci_set_atomic(struct qedr_dev *dev, struct pci_dev *pdev) { - struct pci_dev *bridge; - u32 ctl2, cap2; - u16 flags; - int rc; - - bridge = pdev->bus->self; - if (!bridge) - goto disable; - - /* Check atomic routing support all the way to root complex */ - while (bridge->bus->parent) { - rc = pcie_capability_read_word(bridge, PCI_EXP_FLAGS, &flags); - if (rc || ((flags & PCI_EXP_FLAGS_VERS) < 2)) - goto disable; - - rc = pcie_capability_read_dword(bridge, PCI_EXP_DEVCAP2, &cap2); - if (rc) - goto disable; + int rc = pci_enable_atomic_ops_to_root(pdev, + PCI_EXP_DEVCAP2_ATOMIC_COMP64); - rc = pcie_capability_read_dword(bridge, PCI_EXP_DEVCTL2, &ctl2); - if (rc) - goto disable; - - if (!(cap2 & PCI_EXP_DEVCAP2_ATOMIC_ROUTE) || - (ctl2 & PCI_EXP_DEVCTL2_ATOMIC_EGRESS_BLOCK)) - goto disable; - bridge = bridge->bus->parent->self; + if (rc) { + dev->atomic_cap = IB_ATOMIC_NONE; + DP_DEBUG(dev, QEDR_MSG_INIT, "Atomic capability disabled\n"); + } else { + dev->atomic_cap = IB_ATOMIC_GLOB; + DP_DEBUG(dev, QEDR_MSG_INIT, "Atomic capability enabled\n"); } - - rc = pcie_capability_read_word(bridge, PCI_EXP_FLAGS, &flags); - if (rc || ((flags & PCI_EXP_FLAGS_VERS) < 2)) - goto disable; - - rc = pcie_capability_read_dword(bridge, PCI_EXP_DEVCAP2, &cap2); - if (rc || !(cap2 & PCI_EXP_DEVCAP2_ATOMIC_COMP64)) - goto disable; - - /* Set atomic operations */ - pcie_capability_set_word(pdev, PCI_EXP_DEVCTL2, - PCI_EXP_DEVCTL2_ATOMIC_REQ); - dev->atomic_cap = IB_ATOMIC_GLOB; - - DP_DEBUG(dev, QEDR_MSG_INIT, "Atomic capability enabled\n"); - - return; - -disable: - pcie_capability_clear_word(pdev, PCI_EXP_DEVCTL2, - PCI_EXP_DEVCTL2_ATOMIC_REQ); - dev->atomic_cap = IB_ATOMIC_NONE; - - DP_DEBUG(dev, QEDR_MSG_INIT, "Atomic capability disabled\n"); - } static const struct qed_rdma_ops *qed_ops; |