cxgb4/iw_cxgb4: display TPTE on errors

[pandora-kernel.git] / drivers / infiniband / hw / cxgb4 / device.c

diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index e76358e..8386678 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -241,12 +241,32 @@ static int dump_stag(int id, void *p, void *data)
        struct c4iw_debugfs_data *stagd = data;
        int space;
        int cc;
+       struct fw_ri_tpte tpte;
+       int ret;
 
        space = stagd->bufsize - stagd->pos - 1;
        if (space == 0)
                return 1;
 
-       cc = snprintf(stagd->buf + stagd->pos, space, "0x%x\n", id<<8);
+       ret = cxgb4_read_tpte(stagd->devp->rdev.lldi.ports[0], (u32)id<<8,
+                             (__be32 *)&tpte);
+       if (ret) {
+               dev_err(&stagd->devp->rdev.lldi.pdev->dev,
+                       "%s cxgb4_read_tpte err %d\n", __func__, ret);
+               return ret;
+       }
+       cc = snprintf(stagd->buf + stagd->pos, space,
+                     "stag: idx 0x%x valid %d key 0x%x state %d pdid %d "
+                     "perm 0x%x ps %d len 0x%llx va 0x%llx\n",
+                     (u32)id<<8,
+                     G_FW_RI_TPTE_VALID(ntohl(tpte.valid_to_pdid)),
+                     G_FW_RI_TPTE_STAGKEY(ntohl(tpte.valid_to_pdid)),
+                     G_FW_RI_TPTE_STAGSTATE(ntohl(tpte.valid_to_pdid)),
+                     G_FW_RI_TPTE_PDID(ntohl(tpte.valid_to_pdid)),
+                     G_FW_RI_TPTE_PERM(ntohl(tpte.locread_to_qpid)),
+                     G_FW_RI_TPTE_PS(ntohl(tpte.locread_to_qpid)),
+                     ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo),
+                     ((u64)ntohl(tpte.va_hi) << 32) | ntohl(tpte.va_lo_fbo));
        if (cc < space)
                stagd->pos += cc;
        return 0;
@@ -259,7 +279,7 @@ static int stag_release(struct inode *inode, struct file *file)
                printk(KERN_INFO "%s null stagd?\n", __func__);
                return 0;
        }
-       kfree(stagd->buf);
+       vfree(stagd->buf);
        kfree(stagd);
        return 0;
 }
@@ -282,8 +302,8 @@ static int stag_open(struct inode *inode, struct file *file)
        idr_for_each(&stagd->devp->mmidr, count_idrs, &count);
        spin_unlock_irq(&stagd->devp->lock);
 
-       stagd->bufsize = count * sizeof("0x12345678\n");
-       stagd->buf = kmalloc(stagd->bufsize, GFP_KERNEL);
+       stagd->bufsize = count * 256;
+       stagd->buf = vmalloc(stagd->bufsize);
        if (!stagd->buf) {
                ret = -ENOMEM;
                goto err1;