diff options
| author |   Michal Kalderon <michal.kalderon@marvell.com> | 2019-05-26 15:22:27 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-05-26 13:04:12 -0700 |
| commit | 3576e99e08217f291290ac62431c7e330ac111c4 (patch) | |
| tree | ebaaaf7293c12fe2584f7e437b010072273f9595 /drivers/infiniband/hw/qedr/main.c | |
| parent | qed: Add qed devlink parameters table (diff) | |
| download | linux-dev-3576e99e08217f291290ac62431c7e330ac111c4.tar.xz linux-dev-3576e99e08217f291290ac62431c7e330ac111c4.zip | |
qed*: Add iWARP 100g support
Add iWARP engine affinity setting for supporting iWARP over 100g.
iWARP cannot be distinguished by the LLH from L2, hence the
engine division will affect L2 as well. For this reason we add
a parameter to devlink to determine the engine division.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/qedr/main.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index 055a63144480..5ebf3c53b3fb 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -871,7 +871,16 @@ static struct qedr_dev *qedr_add(struct qed_dev *cdev, struct pci_dev *pdev, dev->user_dpm_enabled = dev_info.user_dpm_enabled; dev->rdma_type = dev_info.rdma_type; dev->num_hwfns = dev_info.common.num_hwfns; + + if (IS_IWARP(dev) && QEDR_IS_CMT(dev)) { + rc = dev->ops->iwarp_set_engine_affin(cdev, false); + if (rc) { + DP_ERR(dev, "iWARP is disabled over a 100g device Enabling it may impact L2 performance. To enable it run devlink dev param set <dev> name iwarp_cmt value true cmode runtime\n"); + goto init_err; + } + } dev->affin_hwfn_idx = dev->ops->common->get_affin_hwfn_idx(cdev); + dev->rdma_ctx = dev->ops->rdma_get_rdma_ctx(cdev); dev->num_cnq = dev->ops->rdma_get_min_cnq_msix(cdev); @@ -932,6 +941,10 @@ static void qedr_remove(struct qedr_dev *dev) qedr_stop_hw(dev); qedr_sync_free_irqs(dev); qedr_free_resources(dev); + + if (IS_IWARP(dev) && QEDR_IS_CMT(dev)) + dev->ops->iwarp_set_engine_affin(dev->cdev, true); + ib_dealloc_device(&dev->ibdev); } |