RDMA/cxgb4: Fastreg NSMR fixes

[deliverable/linux.git] / drivers / infiniband / hw / cxgb4 / provider.c

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 8f645c83a125c1c9a1e3ad3ff400c3d90a0fec3a..81e127713675292b7b7d1ae8145dd683d5678a21 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -54,9 +54,9 @@
 
 #include "iw_cxgb4.h"
 
-static int fastreg_support;
+static int fastreg_support = 1;
 module_param(fastreg_support, int, 0644);
-MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=0)");
+MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
 
 static int c4iw_modify_port(struct ib_device *ibdev,
                            u8 port, int port_modify_mask,
@@ -149,19 +149,28 @@ static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
        addr = mm->addr;
        kfree(mm);
 
-       if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
-           (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
-                      pci_resource_len(rdev->lldi.pdev, 2)))) {
+       if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
+           (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
+                   pci_resource_len(rdev->lldi.pdev, 0)))) {
 
                /*
-                * Map T4 DB register.
+                * MA_SYNC register...
                 */
-               if (vma->vm_flags & VM_READ)
-                       return -EPERM;
-
                vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-               vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
-               vma->vm_flags &= ~VM_MAYREAD;
+               ret = io_remap_pfn_range(vma, vma->vm_start,
+                                        addr >> PAGE_SHIFT,
+                                        len, vma->vm_page_prot);
+       } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
+                  (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
+                   pci_resource_len(rdev->lldi.pdev, 2)))) {
+
+               /*
+                * Map user DB or OCQP memory...
+                */
+               if (addr >= rdev->oc_mw_pa)
+                       vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
+               else
+                       vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
                ret = io_remap_pfn_range(vma, vma->vm_start,
                                         addr >> PAGE_SHIFT,
                                         len, vma->vm_page_prot);
@@ -472,6 +481,7 @@ int c4iw_register_device(struct c4iw_dev *dev)
        dev->ibdev.post_send = c4iw_post_send;
        dev->ibdev.post_recv = c4iw_post_receive;
        dev->ibdev.get_protocol_stats = c4iw_get_mib;
+       dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
 
        dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
        if (!dev->ibdev.iwcm)