From: Dave Jiang <[email protected]> This is in perperation of un-exporting the pcie_set_mps() function symbol. A driver should not be changing the MPS as that is the responsibility of the PCI subsystem.
Signed-off-by: Dave Jiang <[email protected]> --- drivers/infiniband/hw/qib/qib_pcie.c | 27 +-------------------------- 1 file changed, 1 insertion(+), 26 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c index 4758a38..b8a2dcd 100644 --- a/drivers/infiniband/hw/qib/qib_pcie.c +++ b/drivers/infiniband/hw/qib/qib_pcie.c @@ -557,12 +557,11 @@ static void qib_tune_pcie_coalesce(struct qib_devdata *dd) */ static int qib_pcie_caps; module_param_named(pcie_caps, qib_pcie_caps, int, S_IRUGO); -MODULE_PARM_DESC(pcie_caps, "Max PCIe tuning: Payload (0..3), ReadReq (4..7)"); +MODULE_PARM_DESC(pcie_caps, "Max PCIe tuning: ReadReq (4..7)"); static void qib_tune_pcie_caps(struct qib_devdata *dd) { struct pci_dev *parent; - u16 rc_mpss, rc_mps, ep_mpss, ep_mps; u16 rc_mrrs, ep_mrrs, max_mrrs; /* Find out supported and configured values for parent (root) */ @@ -575,30 +574,6 @@ static void qib_tune_pcie_caps(struct qib_devdata *dd) if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev)) return; - rc_mpss = parent->pcie_mpss; - rc_mps = ffs(pcie_get_mps(parent)) - 8; - /* Find out supported and configured values for endpoint (us) */ - ep_mpss = dd->pcidev->pcie_mpss; - ep_mps = ffs(pcie_get_mps(dd->pcidev)) - 8; - - /* Find max payload supported by root, endpoint */ - if (rc_mpss > ep_mpss) - rc_mpss = ep_mpss; - - /* If Supported greater than limit in module param, limit it */ - if (rc_mpss > (qib_pcie_caps & 7)) - rc_mpss = qib_pcie_caps & 7; - /* If less than (allowed, supported), bump root payload */ - if (rc_mpss > rc_mps) { - rc_mps = rc_mpss; - pcie_set_mps(parent, 128 << rc_mps); - } - /* If less than (allowed, supported), bump endpoint payload */ - if (rc_mpss > ep_mps) { - ep_mps = rc_mpss; - pcie_set_mps(dd->pcidev, 128 << ep_mps); - } - /* * Now the Read Request size. * No field for max supported, but PCIe spec limits it to 4096, -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
