xprtrdma: Remove Tavor MTU setting
Clean up. Remove HCA-specific clutter in xprtrdma, which is supposed to be device-independent. Hal Rosenstock <hal@dev.mellanox.co.il> observes: > Note that there is OpenSM option (enable_quirks) to return 1K MTU > in SA PathRecord responses for Tavor so that can be used for this. > The default setting for enable_quirks is FALSE so that would need > changing. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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@ -48,7 +48,6 @@
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*/
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#include <linux/interrupt.h>
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#include <linux/pci.h> /* for Tavor hack below */
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#include <linux/slab.h>
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#include <asm/bitops.h>
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@ -920,19 +919,6 @@ retry:
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}
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}
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/* XXX Tavor device performs badly with 2K MTU! */
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if (strnicmp(ia->ri_id->device->dma_device->bus->name, "pci", 3) == 0) {
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struct pci_dev *pcid = to_pci_dev(ia->ri_id->device->dma_device);
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if (pcid->device == PCI_DEVICE_ID_MELLANOX_TAVOR &&
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(pcid->vendor == PCI_VENDOR_ID_MELLANOX ||
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pcid->vendor == PCI_VENDOR_ID_TOPSPIN)) {
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struct ib_qp_attr attr = {
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.path_mtu = IB_MTU_1024
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};
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rc = ib_modify_qp(ia->ri_id->qp, &attr, IB_QP_PATH_MTU);
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}
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}
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ep->rep_connected = 0;
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rc = rdma_connect(ia->ri_id, &ep->rep_remote_cma);
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