ieee1394: merge from Linus

Conflicts: drivers/ieee1394/hosts.c
Patch "lockdep: annotate ieee1394 skb-queue-head locking" was meddling
with patch "ieee1394: fix kerneldoc of hpsb_alloc_host".

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

3 files changed, 52 insertions, 44 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 823131d58b34..f98518d912b5 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -859,6 +859,38 @@ static void ipath_rcv_layer(struct ipath_devdata *dd, u32 etail,
                 __ipath_layer_rcv_lid(dd, hdr);
 }
 
+static void ipath_rcv_hdrerr(struct ipath_devdata *dd,
+                             u32 eflags,
+                             u32 l,
+                             u32 etail,
+                             u64 *rc)
+{
+        char emsg[128];
+        struct ipath_message_header *hdr;
+
+        get_rhf_errstring(eflags, emsg, sizeof emsg);
+        hdr = (struct ipath_message_header *)&rc[1];
+        ipath_cdbg(PKT, "RHFerrs %x hdrqtail=%x typ=%u "
+                   "tlen=%x opcode=%x egridx=%x: %s\n",
+                   eflags, l,
+                   ipath_hdrget_rcv_type((__le32 *) rc),
+                   ipath_hdrget_length_in_bytes((__le32 *) rc),
+                   be32_to_cpu(hdr->bth[0]) >> 24,
+                   etail, emsg);
+
+        /* Count local link integrity errors. */
+        if (eflags & (INFINIPATH_RHF_H_ICRCERR | INFINIPATH_RHF_H_VCRCERR)) {
+                u8 n = (dd->ipath_ibcctrl >>
+                        INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) &
+                        INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK;
+
+                if (++dd->ipath_lli_counter > n) {
+                        dd->ipath_lli_counter = 0;
+                        dd->ipath_lli_errors++;
+                }
+        }
+}
+
 /*
  * ipath_kreceive - receive a packet
  * @dd: the infinipath device
@@ -875,7 +907,6 @@ void ipath_kreceive(struct ipath_devdata *dd)
         struct ipath_message_header *hdr;
         u32 eflags, i, etype, tlen, pkttot = 0, updegr=0, reloop=0;
         static u64 totcalls;    /* stats, may eventually remove */
-        char emsg[128];
 
         if (!dd->ipath_hdrqtailptr) {
                 ipath_dev_err(dd,
@@ -938,26 +969,9 @@ reloop:
                                    "%x\n", etype);
                 }
 
-                if (eflags & ~(INFINIPATH_RHF_H_TIDERR |
-                               INFINIPATH_RHF_H_IHDRERR)) {
-                        get_rhf_errstring(eflags, emsg, sizeof emsg);
-                        ipath_cdbg(PKT, "RHFerrs %x hdrqtail=%x typ=%u "
-                                   "tlen=%x opcode=%x egridx=%x: %s\n",
-                                   eflags, l, etype, tlen, bthbytes[0],
-                                   ipath_hdrget_index((__le32 *) rc), emsg);
-                        /* Count local link integrity errors. */
-                        if (eflags & (INFINIPATH_RHF_H_ICRCERR |
-                                      INFINIPATH_RHF_H_VCRCERR)) {
-                                u8 n = (dd->ipath_ibcctrl >>
-                                        INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) &
-                                        INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK;
-
-                                if (++dd->ipath_lli_counter > n) {
-                                        dd->ipath_lli_counter = 0;
-                                        dd->ipath_lli_errors++;
-                                }
-                        }
-                } else if (etype == RCVHQ_RCV_TYPE_NON_KD) {
+                if (unlikely(eflags))
+                        ipath_rcv_hdrerr(dd, eflags, l, etail, rc);
+                else if (etype == RCVHQ_RCV_TYPE_NON_KD) {
                                 int ret = __ipath_verbs_rcv(dd, rc + 1,
                                                             ebuf, tlen);
                                 if (ret == -ENODEV)
@@ -981,25 +995,7 @@ reloop:
                 else if (etype == RCVHQ_RCV_TYPE_EXPECTED)
                         ipath_dbg("Bug: Expected TID, opcode %x; ignored\n",
                                   be32_to_cpu(hdr->bth[0]) & 0xff);
-                else if (eflags & (INFINIPATH_RHF_H_TIDERR |
-                                   INFINIPATH_RHF_H_IHDRERR)) {
-                        /*
-                         * This is a type 3 packet, only the LRH is in the
-                         * rcvhdrq, the rest of the header is in the eager
-                         * buffer.
-                         */
-                        u8 opcode;
-                        if (ebuf) {
-                                bthbytes = (u8 *) ebuf;
-                                opcode = *bthbytes;
-                        }
-                        else
-                                opcode = 0;
-                        get_rhf_errstring(eflags, emsg, sizeof emsg);
-                        ipath_dbg("Err %x (%s), opcode %x, egrbuf %x, "
-                                  "len %x\n", eflags, emsg, opcode, etail,
-                                  tlen);
-                } else {
+                else {
                         /*
                          * error packet, type of error  unknown.
                          * Probably type 3, but we don't know, so don't
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index 46773c673a1a..a5ca279370aa 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -197,6 +197,21 @@ int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss,
         size_t off;
         int ret;
 
+        /*
+         * We use RKEY == zero for physical addresses
+         * (see ipath_get_dma_mr).
+         */
+        if (rkey == 0) {
+                sge->mr = NULL;
+                sge->vaddr = phys_to_virt(vaddr);
+                sge->length = len;
+                sge->sge_length = len;
+                ss->sg_list = NULL;
+                ss->num_sge = 1;
+                ret = 1;
+                goto bail;
+        }
+
         mr = rkt->table[(rkey >> (32 - ib_ipath_lkey_table_size))];
         if (unlikely(mr == NULL || mr->lkey != rkey)) {
                 ret = 0;
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 56ac336dd1ec..d70a9b6b5239 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -191,10 +191,6 @@ void ipath_skip_sge(struct ipath_sge_state *ss, u32 length)
 {
         struct ipath_sge *sge = &ss->sge;
 
-        while (length > sge->sge_length) {
-                length -= sge->sge_length;
-                ss->sge = *ss->sg_list++;
-        }
         while (length) {
                 u32 len = sge->length;
 
@@ -627,6 +623,7 @@ static int ipath_query_device(struct ib_device *ibdev,
         props->device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR |
                 IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT |
                 IB_DEVICE_SYS_IMAGE_GUID;
+        props->page_size_cap = PAGE_SIZE;
         props->vendor_id = ipath_layer_get_vendorid(dev->dd);
         props->vendor_part_id = ipath_layer_get_deviceid(dev->dd);
         props->hw_ver = ipath_layer_get_pcirev(dev->dd);