[git pull] InfiniBand updates for 2.6.17
From: Roland Dreier
Date: Fri Mar 24 2006 - 18:58:11 EST
Linus, please pull from
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
This tree is also available from kernel.org mirrors at:
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
The pull will get the following changes:
Dotan Barak:
IB/mthca: Check that sgid_index and path_mtu are valid in modify_qp
Jack Morgenstein:
IB/mthca: Check that SRQ WQE size does not exceed device's max value
IB/mthca: Check SRQ limit in modify SRQ operation
IB/mthca: Fix uninitialized variable in mthca_alloc_qp()
Leonid Arsh:
IPoIB: Pass correct pointer when flushing child interfaces
IPoIB: Fix network interface "RUNNING" status
IPoIB: P_Key change event handling
Roland Dreier:
IB/srp: Use a fake scatterlist for non-SG SCSI commands
IB/mthca: Fix indentation
IB/mthca: Fix modify QP error path
drivers/infiniband/hw/mthca/mthca_qp.c | 61 ++++++++----
drivers/infiniband/hw/mthca/mthca_srq.c | 6 +
drivers/infiniband/ulp/ipoib/ipoib.h | 15 ++-
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 44 ++++++---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 +
drivers/infiniband/ulp/ipoib/ipoib_verbs.c | 6 +
drivers/infiniband/ulp/srp/ib_srp.c | 143 +++++++++++++---------------
drivers/infiniband/ulp/srp/ib_srp.h | 7 +
8 files changed, 169 insertions(+), 118 deletions(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index f673c46..1bc2678 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -483,13 +483,20 @@ out:
return err;
}
-static void mthca_path_set(struct ib_ah_attr *ah, struct mthca_qp_path *path)
+static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah,
+ struct mthca_qp_path *path)
{
path->g_mylmc = ah->src_path_bits & 0x7f;
path->rlid = cpu_to_be16(ah->dlid);
path->static_rate = !!ah->static_rate;
if (ah->ah_flags & IB_AH_GRH) {
+ if (ah->grh.sgid_index >= dev->limits.gid_table_len) {
+ mthca_dbg(dev, "sgid_index (%u) too large. max is %d\n",
+ ah->grh.sgid_index, dev->limits.gid_table_len-1);
+ return -1;
+ }
+
path->g_mylmc |= 1 << 7;
path->mgid_index = ah->grh.sgid_index;
path->hop_limit = ah->grh.hop_limit;
@@ -500,6 +507,8 @@ static void mthca_path_set(struct ib_ah_
memcpy(path->rgid, ah->grh.dgid.raw, 16);
} else
path->sl_tclass_flowlabel = cpu_to_be32(ah->sl << 28);
+
+ return 0;
}
int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
@@ -592,8 +601,14 @@ int mthca_modify_qp(struct ib_qp *ibqp,
if (qp->transport == MLX || qp->transport == UD)
qp_context->mtu_msgmax = (IB_MTU_2048 << 5) | 11;
- else if (attr_mask & IB_QP_PATH_MTU)
+ else if (attr_mask & IB_QP_PATH_MTU) {
+ if (attr->path_mtu < IB_MTU_256 || attr->path_mtu > IB_MTU_2048) {
+ mthca_dbg(dev, "path MTU (%u) is invalid\n",
+ attr->path_mtu);
+ return -EINVAL;
+ }
qp_context->mtu_msgmax = (attr->path_mtu << 5) | 31;
+ }
if (mthca_is_memfree(dev)) {
if (qp->rq.max)
@@ -642,7 +657,9 @@ int mthca_modify_qp(struct ib_qp *ibqp,
}
if (attr_mask & IB_QP_AV) {
- mthca_path_set(&attr->ah_attr, &qp_context->pri_path);
+ if (mthca_path_set(dev, &attr->ah_attr, &qp_context->pri_path))
+ return -EINVAL;
+
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_PRIMARY_ADDR_PATH);
}
@@ -664,7 +681,9 @@ int mthca_modify_qp(struct ib_qp *ibqp,
return -EINVAL;
}
- mthca_path_set(&attr->alt_ah_attr, &qp_context->alt_path);
+ if (mthca_path_set(dev, &attr->alt_ah_attr, &qp_context->alt_path))
+ return -EINVAL;
+
qp_context->alt_path.port_pkey |= cpu_to_be32(attr->alt_pkey_index |
attr->alt_port_num << 24);
qp_context->alt_path.ackto = attr->alt_timeout << 3;
@@ -758,21 +777,20 @@ int mthca_modify_qp(struct ib_qp *ibqp,
err = mthca_MODIFY_QP(dev, cur_state, new_state, qp->qpn, 0,
mailbox, sqd_event, &status);
+ if (err)
+ goto out;
if (status) {
mthca_warn(dev, "modify QP %d->%d returned status %02x.\n",
cur_state, new_state, status);
err = -EINVAL;
+ goto out;
}
- if (!err) {
- qp->state = new_state;
- if (attr_mask & IB_QP_ACCESS_FLAGS)
- qp->atomic_rd_en = attr->qp_access_flags;
- if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
- qp->resp_depth = attr->max_dest_rd_atomic;
- }
-
- mthca_free_mailbox(dev, mailbox);
+ qp->state = new_state;
+ if (attr_mask & IB_QP_ACCESS_FLAGS)
+ qp->atomic_rd_en = attr->qp_access_flags;
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
+ qp->resp_depth = attr->max_dest_rd_atomic;
if (is_sqp(dev, qp))
store_attrs(to_msqp(qp), attr, attr_mask);
@@ -797,7 +815,7 @@ int mthca_modify_qp(struct ib_qp *ibqp,
* If we moved a kernel QP to RESET, clean up all old CQ
* entries and reinitialize the QP.
*/
- if (!err && new_state == IB_QPS_RESET && !qp->ibqp.uobject) {
+ if (new_state == IB_QPS_RESET && !qp->ibqp.uobject) {
mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq)->cqn, qp->qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
if (qp->ibqp.send_cq != qp->ibqp.recv_cq)
@@ -816,6 +834,8 @@ int mthca_modify_qp(struct ib_qp *ibqp,
}
}
+out:
+ mthca_free_mailbox(dev, mailbox);
return err;
}
@@ -1177,10 +1197,6 @@ int mthca_alloc_qp(struct mthca_dev *dev
{
int err;
- err = mthca_set_qp_size(dev, cap, pd, qp);
- if (err)
- return err;
-
switch (type) {
case IB_QPT_RC: qp->transport = RC; break;
case IB_QPT_UC: qp->transport = UC; break;
@@ -1188,6 +1204,10 @@ int mthca_alloc_qp(struct mthca_dev *dev
default: return -EINVAL;
}
+ err = mthca_set_qp_size(dev, cap, pd, qp);
+ if (err)
+ return err;
+
qp->qpn = mthca_alloc(&dev->qp_table.alloc);
if (qp->qpn == -1)
return -ENOMEM;
@@ -1220,6 +1240,7 @@ int mthca_alloc_sqp(struct mthca_dev *de
u32 mqpn = qpn * 2 + dev->qp_table.sqp_start + port - 1;
int err;
+ sqp->qp.transport = MLX;
err = mthca_set_qp_size(dev, cap, pd, &sqp->qp);
if (err)
return err;
@@ -1980,8 +2001,8 @@ int mthca_arbel_post_send(struct ib_qp *
wmb();
((struct mthca_next_seg *) prev_wqe)->ee_nds =
cpu_to_be32(MTHCA_NEXT_DBD | size |
- ((wr->send_flags & IB_SEND_FENCE) ?
- MTHCA_NEXT_FENCE : 0));
+ ((wr->send_flags & IB_SEND_FENCE) ?
+ MTHCA_NEXT_FENCE : 0));
if (!size0) {
size0 = size;
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index 47a6a75..0cfd158 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -205,6 +205,10 @@ int mthca_alloc_srq(struct mthca_dev *de
ds = max(64UL,
roundup_pow_of_two(sizeof (struct mthca_next_seg) +
srq->max_gs * sizeof (struct mthca_data_seg)));
+
+ if (ds > dev->limits.max_desc_sz)
+ return -EINVAL;
+
srq->wqe_shift = long_log2(ds);
srq->srqn = mthca_alloc(&dev->srq_table.alloc);
@@ -354,6 +358,8 @@ int mthca_modify_srq(struct ib_srq *ibsr
return -EINVAL;
if (attr_mask & IB_SRQ_LIMIT) {
+ if (attr->srq_limit > srq->max)
+ return -EINVAL;
ret = mthca_ARM_SRQ(dev, srq->srqn, attr->srq_limit, &status);
if (ret)
return ret;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 1251f86..b640107 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -72,13 +72,14 @@ enum {
IPOIB_MAX_MCAST_QUEUE = 3,
IPOIB_FLAG_OPER_UP = 0,
- IPOIB_FLAG_ADMIN_UP = 1,
- IPOIB_PKEY_ASSIGNED = 2,
- IPOIB_PKEY_STOP = 3,
- IPOIB_FLAG_SUBINTERFACE = 4,
- IPOIB_MCAST_RUN = 5,
- IPOIB_STOP_REAPER = 6,
- IPOIB_MCAST_STARTED = 7,
+ IPOIB_FLAG_INITIALIZED = 1,
+ IPOIB_FLAG_ADMIN_UP = 2,
+ IPOIB_PKEY_ASSIGNED = 3,
+ IPOIB_PKEY_STOP = 4,
+ IPOIB_FLAG_SUBINTERFACE = 5,
+ IPOIB_MCAST_RUN = 6,
+ IPOIB_STOP_REAPER = 7,
+ IPOIB_MCAST_STARTED = 8,
IPOIB_MAX_BACKOFF_SECONDS = 16,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index a1f5a05..ed65202 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -423,13 +423,33 @@ int ipoib_ib_dev_open(struct net_device
clear_bit(IPOIB_STOP_REAPER, &priv->flags);
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task, HZ);
+ set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+
return 0;
}
+static void ipoib_pkey_dev_check_presence(struct net_device *dev)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
+ u16 pkey_index = 0;
+
+ if (ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index))
+ clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
+ else
+ set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
+}
+
int ipoib_ib_dev_up(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
+ ipoib_pkey_dev_check_presence(dev);
+
+ if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
+ ipoib_dbg(priv, "PKEY is not assigned.\n");
+ return 0;
+ }
+
set_bit(IPOIB_FLAG_OPER_UP, &priv->flags);
return ipoib_mcast_start_thread(dev);
@@ -483,6 +503,8 @@ int ipoib_ib_dev_stop(struct net_device
struct ipoib_tx_buf *tx_req;
int i;
+ clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+
/*
* Move our QP to the error state and then reinitialize in
* when all work requests have completed or have been flushed.
@@ -587,8 +609,15 @@ void ipoib_ib_dev_flush(void *_dev)
struct net_device *dev = (struct net_device *)_dev;
struct ipoib_dev_priv *priv = netdev_priv(dev), *cpriv;
- if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
+ if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags) ) {
+ ipoib_dbg(priv, "Not flushing - IPOIB_FLAG_INITIALIZED not set.\n");
+ return;
+ }
+
+ if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) {
+ ipoib_dbg(priv, "Not flushing - IPOIB_FLAG_ADMIN_UP not set.\n");
return;
+ }
ipoib_dbg(priv, "flushing\n");
@@ -605,7 +634,7 @@ void ipoib_ib_dev_flush(void *_dev)
/* Flush any child interfaces too */
list_for_each_entry(cpriv, &priv->child_intfs, list)
- ipoib_ib_dev_flush(&cpriv->dev);
+ ipoib_ib_dev_flush(cpriv->dev);
mutex_unlock(&priv->vlan_mutex);
}
@@ -632,17 +661,6 @@ void ipoib_ib_dev_cleanup(struct net_dev
* change async notification is available.
*/
-static void ipoib_pkey_dev_check_presence(struct net_device *dev)
-{
- struct ipoib_dev_priv *priv = netdev_priv(dev);
- u16 pkey_index = 0;
-
- if (ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index))
- clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
- else
- set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
-}
-
void ipoib_pkey_poll(void *dev_ptr)
{
struct net_device *dev = dev_ptr;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 37da8d3..53a32f6 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -736,6 +736,11 @@ static void ipoib_set_mcast_list(struct
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
+ if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) {
+ ipoib_dbg(priv, "IPOIB_FLAG_OPER_UP not set");
+ return;
+ }
+
queue_work(ipoib_workqueue, &priv->restart_task);
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 18d2f53..5f03880 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -251,10 +251,12 @@ void ipoib_event(struct ib_event_handler
struct ipoib_dev_priv *priv =
container_of(handler, struct ipoib_dev_priv, event_handler);
- if (record->event == IB_EVENT_PORT_ACTIVE ||
+ if (record->event == IB_EVENT_PORT_ERR ||
+ record->event == IB_EVENT_PKEY_CHANGE ||
+ record->event == IB_EVENT_PORT_ACTIVE ||
record->event == IB_EVENT_LID_CHANGE ||
record->event == IB_EVENT_SM_CHANGE) {
- ipoib_dbg(priv, "Port active event\n");
+ ipoib_dbg(priv, "Port state change event\n");
queue_work(ipoib_workqueue, &priv->flush_task);
}
}
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a13dcdf..61924cc 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -503,8 +503,10 @@ err:
static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
struct srp_request *req)
{
+ struct scatterlist *scat;
struct srp_cmd *cmd = req->cmd->buf;
- int len;
+ int len, nents, count;
+ int i;
u8 fmt;
if (!scmnd->request_buffer || scmnd->sc_data_direction == DMA_NONE)
@@ -517,82 +519,66 @@ static int srp_map_data(struct scsi_cmnd
return -EINVAL;
}
- if (scmnd->use_sg) {
- struct scatterlist *scat = scmnd->request_buffer;
- int n;
- int i;
+ /*
+ * This handling of non-SG commands can be killed when the
+ * SCSI midlayer no longer generates non-SG commands.
+ */
+ if (likely(scmnd->use_sg)) {
+ nents = scmnd->use_sg;
+ scat = scmnd->request_buffer;
+ } else {
+ nents = 1;
+ scat = &req->fake_sg;
+ sg_init_one(scat, scmnd->request_buffer, scmnd->request_bufflen);
+ }
- n = dma_map_sg(target->srp_host->dev->dma_device,
- scat, scmnd->use_sg, scmnd->sc_data_direction);
+ count = dma_map_sg(target->srp_host->dev->dma_device, scat, nents,
+ scmnd->sc_data_direction);
- if (n == 1) {
- struct srp_direct_buf *buf = (void *) cmd->add_data;
+ if (count == 1) {
+ struct srp_direct_buf *buf = (void *) cmd->add_data;
- fmt = SRP_DATA_DESC_DIRECT;
+ fmt = SRP_DATA_DESC_DIRECT;
- buf->va = cpu_to_be64(sg_dma_address(scat));
- buf->key = cpu_to_be32(target->srp_host->mr->rkey);
- buf->len = cpu_to_be32(sg_dma_len(scat));
+ buf->va = cpu_to_be64(sg_dma_address(scat));
+ buf->key = cpu_to_be32(target->srp_host->mr->rkey);
+ buf->len = cpu_to_be32(sg_dma_len(scat));
- len = sizeof (struct srp_cmd) +
- sizeof (struct srp_direct_buf);
- } else {
- struct srp_indirect_buf *buf = (void *) cmd->add_data;
- u32 datalen = 0;
+ len = sizeof (struct srp_cmd) +
+ sizeof (struct srp_direct_buf);
+ } else {
+ struct srp_indirect_buf *buf = (void *) cmd->add_data;
+ u32 datalen = 0;
- fmt = SRP_DATA_DESC_INDIRECT;
+ fmt = SRP_DATA_DESC_INDIRECT;
- if (scmnd->sc_data_direction == DMA_TO_DEVICE)
- cmd->data_out_desc_cnt = n;
- else
- cmd->data_in_desc_cnt = n;
+ if (scmnd->sc_data_direction == DMA_TO_DEVICE)
+ cmd->data_out_desc_cnt = count;
+ else
+ cmd->data_in_desc_cnt = count;
- buf->table_desc.va = cpu_to_be64(req->cmd->dma +
- sizeof *cmd +
- sizeof *buf);
- buf->table_desc.key =
+ buf->table_desc.va = cpu_to_be64(req->cmd->dma +
+ sizeof *cmd +
+ sizeof *buf);
+ buf->table_desc.key =
+ cpu_to_be32(target->srp_host->mr->rkey);
+ buf->table_desc.len =
+ cpu_to_be32(count * sizeof (struct srp_direct_buf));
+
+ for (i = 0; i < count; ++i) {
+ buf->desc_list[i].va = cpu_to_be64(sg_dma_address(&scat[i]));
+ buf->desc_list[i].key =
cpu_to_be32(target->srp_host->mr->rkey);
- buf->table_desc.len =
- cpu_to_be32(n * sizeof (struct srp_direct_buf));
-
- for (i = 0; i < n; ++i) {
- buf->desc_list[i].va = cpu_to_be64(sg_dma_address(&scat[i]));
- buf->desc_list[i].key =
- cpu_to_be32(target->srp_host->mr->rkey);
- buf->desc_list[i].len = cpu_to_be32(sg_dma_len(&scat[i]));
-
- datalen += sg_dma_len(&scat[i]);
- }
-
- buf->len = cpu_to_be32(datalen);
+ buf->desc_list[i].len = cpu_to_be32(sg_dma_len(&scat[i]));
- len = sizeof (struct srp_cmd) +
- sizeof (struct srp_indirect_buf) +
- n * sizeof (struct srp_direct_buf);
- }
- } else {
- struct srp_direct_buf *buf = (void *) cmd->add_data;
- dma_addr_t dma;
-
- dma = dma_map_single(target->srp_host->dev->dma_device,
- scmnd->request_buffer, scmnd->request_bufflen,
- scmnd->sc_data_direction);
- if (dma_mapping_error(dma)) {
- printk(KERN_WARNING PFX "unable to map %p/%d (dir %d)\n",
- scmnd->request_buffer, (int) scmnd->request_bufflen,
- scmnd->sc_data_direction);
- return -EINVAL;
+ datalen += sg_dma_len(&scat[i]);
}
- pci_unmap_addr_set(req, direct_mapping, dma);
-
- buf->va = cpu_to_be64(dma);
- buf->key = cpu_to_be32(target->srp_host->mr->rkey);
- buf->len = cpu_to_be32(scmnd->request_bufflen);
-
- fmt = SRP_DATA_DESC_DIRECT;
+ buf->len = cpu_to_be32(datalen);
- len = sizeof (struct srp_cmd) + sizeof (struct srp_direct_buf);
+ len = sizeof (struct srp_cmd) +
+ sizeof (struct srp_indirect_buf) +
+ count * sizeof (struct srp_direct_buf);
}
if (scmnd->sc_data_direction == DMA_TO_DEVICE)
@@ -600,7 +586,6 @@ static int srp_map_data(struct scsi_cmnd
else
cmd->buf_fmt = fmt;
-
return len;
}
@@ -608,20 +593,28 @@ static void srp_unmap_data(struct scsi_c
struct srp_target_port *target,
struct srp_request *req)
{
+ struct scatterlist *scat;
+ int nents;
+
if (!scmnd->request_buffer ||
(scmnd->sc_data_direction != DMA_TO_DEVICE &&
scmnd->sc_data_direction != DMA_FROM_DEVICE))
- return;
+ return;
- if (scmnd->use_sg)
- dma_unmap_sg(target->srp_host->dev->dma_device,
- (struct scatterlist *) scmnd->request_buffer,
- scmnd->use_sg, scmnd->sc_data_direction);
- else
- dma_unmap_single(target->srp_host->dev->dma_device,
- pci_unmap_addr(req, direct_mapping),
- scmnd->request_bufflen,
- scmnd->sc_data_direction);
+ /*
+ * This handling of non-SG commands can be killed when the
+ * SCSI midlayer no longer generates non-SG commands.
+ */
+ if (likely(scmnd->use_sg)) {
+ nents = scmnd->use_sg;
+ scat = (struct scatterlist *) scmnd->request_buffer;
+ } else {
+ nents = 1;
+ scat = (struct scatterlist *) scmnd->request_buffer;
+ }
+
+ dma_unmap_sg(target->srp_host->dev->dma_device, scat, nents,
+ scmnd->sc_data_direction);
}
static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 4e7727d..bd7f7c3 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -38,6 +38,7 @@
#include <linux/types.h>
#include <linux/list.h>
#include <linux/mutex.h>
+#include <linux/scatterlist.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
@@ -94,7 +95,11 @@ struct srp_request {
struct scsi_cmnd *scmnd;
struct srp_iu *cmd;
struct srp_iu *tsk_mgmt;
- DECLARE_PCI_UNMAP_ADDR(direct_mapping)
+ /*
+ * Fake scatterlist used when scmnd->use_sg==0. Can be killed
+ * when the SCSI midlayer no longer generates non-SG commands.
+ */
+ struct scatterlist fake_sg;
struct completion done;
short next;
u8 cmd_done;
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/