]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/infiniband/hw/ehca/ehca_uverbs.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux...
[linux-2.6-omap-h63xx.git] / drivers / infiniband / hw / ehca / ehca_uverbs.c
index 4bc687fdf531fa5b96dcbc76fc6a9c31d1e69237..e43ed8f8a0c84a51b79c52e34590b821fbaf89dd 100644 (file)
@@ -40,8 +40,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <asm/current.h>
-
 #include "ehca_classes.h"
 #include "ehca_iverbs.h"
 #include "ehca_mrmw.h"
@@ -109,7 +107,7 @@ static int ehca_mmap_fw(struct vm_area_struct *vma, struct h_galpas *galpas,
        u64 vsize, physical;
 
        vsize = vma->vm_end - vma->vm_start;
-       if (vsize != EHCA_PAGESIZE) {
+       if (vsize < EHCA_PAGESIZE) {
                ehca_gen_err("invalid vsize=%lx", vma->vm_end - vma->vm_start);
                return -EINVAL;
        }
@@ -118,10 +116,10 @@ static int ehca_mmap_fw(struct vm_area_struct *vma, struct h_galpas *galpas,
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
        ehca_gen_dbg("vsize=%lx physical=%lx", vsize, physical);
        /* VM_IO | VM_RESERVED are set by remap_pfn_range() */
-       ret = remap_pfn_range(vma, vma->vm_start, physical >> PAGE_SHIFT,
-                             vsize, vma->vm_page_prot);
+       ret = remap_4k_pfn(vma, vma->vm_start, physical >> EHCA_PAGESHIFT,
+                          vma->vm_page_prot);
        if (unlikely(ret)) {
-               ehca_gen_err("remap_pfn_range() failed ret=%x", ret);
+               ehca_gen_err("remap_pfn_range() failed ret=%i", ret);
                return -ENOMEM;
        }
 
@@ -146,7 +144,7 @@ static int ehca_mmap_queue(struct vm_area_struct *vma, struct ipz_queue *queue,
                page = virt_to_page(virt_addr);
                ret = vm_insert_page(vma, start, page);
                if (unlikely(ret)) {
-                       ehca_gen_err("vm_insert_page() failed rc=%x", ret);
+                       ehca_gen_err("vm_insert_page() failed rc=%i", ret);
                        return ret;
                }
                start += PAGE_SIZE;
@@ -164,23 +162,23 @@ static int ehca_mmap_cq(struct vm_area_struct *vma, struct ehca_cq *cq,
        int ret;
 
        switch (rsrc_type) {
-       case 1: /* galpa fw handle */
+       case 0: /* galpa fw handle */
                ehca_dbg(cq->ib_cq.device, "cq_num=%x fw", cq->cq_number);
                ret = ehca_mmap_fw(vma, &cq->galpas, &cq->mm_count_galpa);
                if (unlikely(ret)) {
                        ehca_err(cq->ib_cq.device,
-                                "ehca_mmap_fw() failed rc=%x cq_num=%x",
+                                "ehca_mmap_fw() failed rc=%i cq_num=%x",
                                 ret, cq->cq_number);
                        return ret;
                }
                break;
 
-       case 2: /* cq queue_addr */
+       case 1: /* cq queue_addr */
                ehca_dbg(cq->ib_cq.device, "cq_num=%x queue", cq->cq_number);
                ret = ehca_mmap_queue(vma, &cq->ipz_queue, &cq->mm_count_queue);
                if (unlikely(ret)) {
                        ehca_err(cq->ib_cq.device,
-                                "ehca_mmap_queue() failed rc=%x cq_num=%x",
+                                "ehca_mmap_queue() failed rc=%i cq_num=%x",
                                 ret, cq->cq_number);
                        return ret;
                }
@@ -201,38 +199,36 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp,
        int ret;
 
        switch (rsrc_type) {
-       case 1: /* galpa fw handle */
+       case 0: /* galpa fw handle */
                ehca_dbg(qp->ib_qp.device, "qp_num=%x fw", qp->ib_qp.qp_num);
                ret = ehca_mmap_fw(vma, &qp->galpas, &qp->mm_count_galpa);
                if (unlikely(ret)) {
                        ehca_err(qp->ib_qp.device,
-                                "remap_pfn_range() failed ret=%x qp_num=%x",
+                                "remap_pfn_range() failed ret=%i qp_num=%x",
                                 ret, qp->ib_qp.qp_num);
                        return -ENOMEM;
                }
                break;
 
-       case 2: /* qp rqueue_addr */
-               ehca_dbg(qp->ib_qp.device, "qp_num=%x rqueue",
-                        qp->ib_qp.qp_num);
+       case 1: /* qp rqueue_addr */
+               ehca_dbg(qp->ib_qp.device, "qp_num=%x rq", qp->ib_qp.qp_num);
                ret = ehca_mmap_queue(vma, &qp->ipz_rqueue,
                                      &qp->mm_count_rqueue);
                if (unlikely(ret)) {
                        ehca_err(qp->ib_qp.device,
-                                "ehca_mmap_queue(rq) failed rc=%x qp_num=%x",
+                                "ehca_mmap_queue(rq) failed rc=%i qp_num=%x",
                                 ret, qp->ib_qp.qp_num);
                        return ret;
                }
                break;
 
-       case 3: /* qp squeue_addr */
-               ehca_dbg(qp->ib_qp.device, "qp_num=%x squeue",
-                        qp->ib_qp.qp_num);
+       case 2: /* qp squeue_addr */
+               ehca_dbg(qp->ib_qp.device, "qp_num=%x sq", qp->ib_qp.qp_num);
                ret = ehca_mmap_queue(vma, &qp->ipz_squeue,
                                      &qp->mm_count_squeue);
                if (unlikely(ret)) {
                        ehca_err(qp->ib_qp.device,
-                                "ehca_mmap_queue(sq) failed rc=%x qp_num=%x",
+                                "ehca_mmap_queue(sq) failed rc=%i qp_num=%x",
                                 ret, qp->ib_qp.qp_num);
                        return ret;
                }
@@ -249,19 +245,17 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp,
 
 int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 {
-       u64 fileoffset = vma->vm_pgoff << PAGE_SHIFT;
-       u32 idr_handle = fileoffset >> 32;
-       u32 q_type = (fileoffset >> 28) & 0xF;    /* CQ, QP,...        */
-       u32 rsrc_type = (fileoffset >> 24) & 0xF; /* sq,rq,cmnd_window */
-       u32 cur_pid = current->tgid;
+       u64 fileoffset = vma->vm_pgoff;
+       u32 idr_handle = fileoffset & 0x1FFFFFF;
+       u32 q_type = (fileoffset >> 27) & 0x1;    /* CQ, QP,...        */
+       u32 rsrc_type = (fileoffset >> 25) & 0x3; /* sq,rq,cmnd_window */
        u32 ret;
        struct ehca_cq *cq;
        struct ehca_qp *qp;
-       struct ehca_pd *pd;
        struct ib_uobject *uobject;
 
        switch (q_type) {
-       case  1: /* CQ */
+       case  0: /* CQ */
                read_lock(&ehca_cq_idr_lock);
                cq = idr_find(&ehca_cq_idr, idr_handle);
                read_unlock(&ehca_cq_idr_lock);
@@ -270,26 +264,19 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
                if (!cq)
                        return -EINVAL;
 
-               if (cq->ownpid != cur_pid) {
-                       ehca_err(cq->ib_cq.device,
-                                "Invalid caller pid=%x ownpid=%x",
-                                cur_pid, cq->ownpid);
-                       return -ENOMEM;
-               }
-
                if (!cq->ib_cq.uobject || cq->ib_cq.uobject->context != context)
                        return -EINVAL;
 
                ret = ehca_mmap_cq(vma, cq, rsrc_type);
                if (unlikely(ret)) {
                        ehca_err(cq->ib_cq.device,
-                                "ehca_mmap_cq() failed rc=%x cq_num=%x",
+                                "ehca_mmap_cq() failed rc=%i cq_num=%x",
                                 ret, cq->cq_number);
                        return ret;
                }
                break;
 
-       case 2: /* QP */
+       case 1: /* QP */
                read_lock(&ehca_qp_idr_lock);
                qp = idr_find(&ehca_qp_idr, idr_handle);
                read_unlock(&ehca_qp_idr_lock);
@@ -298,14 +285,6 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
                if (!qp)
                        return -EINVAL;
 
-               pd = container_of(qp->ib_qp.pd, struct ehca_pd, ib_pd);
-               if (pd->ownpid != cur_pid) {
-                       ehca_err(qp->ib_qp.device,
-                                "Invalid caller pid=%x ownpid=%x",
-                                cur_pid, pd->ownpid);
-                       return -ENOMEM;
-               }
-
                uobject = IS_SRQ(qp) ? qp->ib_srq.uobject : qp->ib_qp.uobject;
                if (!uobject || uobject->context != context)
                        return -EINVAL;
@@ -313,7 +292,7 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
                ret = ehca_mmap_qp(vma, qp, rsrc_type);
                if (unlikely(ret)) {
                        ehca_err(qp->ib_qp.device,
-                                "ehca_mmap_qp() failed rc=%x qp_num=%x",
+                                "ehca_mmap_qp() failed rc=%i qp_num=%x",
                                 ret, qp->ib_qp.qp_num);
                        return ret;
                }