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Subject[GIT PULL] please pull infiniband.git
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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

This will get a bunch of fixes to the new mlx4 driver, and one fix for
port assignment by the RDMA CM:

Eli Cohen (1):
mlx4_core: Fix CQ context layout

Jack Morgenstein (2):
mlx4_core: Don't set MTT address in dMPT entries with PA set
IB/mlx4: Fix zeroing of rnr_retry value in ib_modify_qp()

Roland Dreier (5):
mlx4_core: Initialize ctx_list and ctx_lock earlier
mlx4_core: Free catastrophic error MSI-X interrupt with correct dev_id
IB/mthca, mlx4_core: Fix typo in comment
mlx4_core: Check firmware command interface revision
IB/mlx4: Make sure RQ allocation is always valid

Sean Hefty (1):
RDMA/cma: Fix initialization of next_port

drivers/infiniband/core/cma.c | 4 +-
drivers/infiniband/hw/mlx4/qp.c | 33 ++++++++++++++++++++----------
drivers/infiniband/hw/mthca/mthca_cmd.c | 2 +-
drivers/net/mlx4/cq.c | 2 +-
drivers/net/mlx4/eq.c | 4 ++-
drivers/net/mlx4/fw.c | 27 ++++++++++++++++++++++--
drivers/net/mlx4/intf.c | 3 --
drivers/net/mlx4/main.c | 2 +
drivers/net/mlx4/mr.c | 8 ++++--
9 files changed, 60 insertions(+), 25 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 2eb52b7..32a0e66 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2773,8 +2773,8 @@ static int cma_init(void)
int ret;

get_random_bytes(&next_port, sizeof next_port);
- next_port = (next_port % (sysctl_local_port_range[1] -
- sysctl_local_port_range[0])) +
+ next_port = ((unsigned int) next_port %
+ (sysctl_local_port_range[1] - sysctl_local_port_range[0])) +
sysctl_local_port_range[0];
cma_wq = create_singlethread_workqueue("rdma_cm");
if (!cma_wq)
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index dc137de..5c6d054 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -189,18 +189,28 @@ static int send_wqe_overhead(enum ib_qp_type type)
}

static int set_rq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
- struct mlx4_ib_qp *qp)
+ int is_user, int has_srq, struct mlx4_ib_qp *qp)
{
/* Sanity check RQ size before proceeding */
if (cap->max_recv_wr > dev->dev->caps.max_wqes ||
cap->max_recv_sge > dev->dev->caps.max_rq_sg)
return -EINVAL;

- qp->rq.max = cap->max_recv_wr ? roundup_pow_of_two(cap->max_recv_wr) : 0;
+ if (has_srq) {
+ /* QPs attached to an SRQ should have no RQ */
+ if (cap->max_recv_wr)
+ return -EINVAL;
+
+ qp->rq.max = qp->rq.max_gs = 0;
+ } else {
+ /* HW requires >= 1 RQ entry with >= 1 gather entry */
+ if (is_user && (!cap->max_recv_wr || !cap->max_recv_sge))
+ return -EINVAL;

- qp->rq.wqe_shift = ilog2(roundup_pow_of_two(cap->max_recv_sge *
- sizeof (struct mlx4_wqe_data_seg)));
- qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof (struct mlx4_wqe_data_seg);
+ qp->rq.max = roundup_pow_of_two(max(1, cap->max_recv_wr));
+ qp->rq.max_gs = roundup_pow_of_two(max(1, cap->max_recv_sge));
+ qp->rq.wqe_shift = ilog2(qp->rq.max_gs * sizeof (struct mlx4_wqe_data_seg));
+ }

cap->max_recv_wr = qp->rq.max;
cap->max_recv_sge = qp->rq.max_gs;
@@ -285,7 +295,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
qp->sq.head = 0;
qp->sq.tail = 0;

- err = set_rq_size(dev, &init_attr->cap, qp);
+ err = set_rq_size(dev, &init_attr->cap, !!pd->uobject, !!init_attr->srq, qp);
if (err)
goto err;

@@ -762,11 +772,6 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
optpar |= MLX4_QP_OPTPAR_PKEY_INDEX;
}

- if (attr_mask & IB_QP_RNR_RETRY) {
- context->params1 |= cpu_to_be32(attr->rnr_retry << 13);
- optpar |= MLX4_QP_OPTPAR_RNR_RETRY;
- }
-
if (attr_mask & IB_QP_AV) {
if (mlx4_set_path(dev, &attr->ah_attr, &context->pri_path,
attr_mask & IB_QP_PORT ? attr->port_num : qp->port)) {
@@ -802,6 +807,12 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,

context->pd = cpu_to_be32(to_mpd(ibqp->pd)->pdn);
context->params1 = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28);
+
+ if (attr_mask & IB_QP_RNR_RETRY) {
+ context->params1 |= cpu_to_be32(attr->rnr_retry << 13);
+ optpar |= MLX4_QP_OPTPAR_RNR_RETRY;
+ }
+
if (attr_mask & IB_QP_RETRY_CNT) {
context->params1 |= cpu_to_be32(attr->retry_cnt << 16);
optpar |= MLX4_QP_OPTPAR_RETRY_COUNT;
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 3810252..f40558d 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -772,7 +772,7 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)

MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET);
/*
- * FW subminor version is at more signifant bits than minor
+ * FW subminor version is at more significant bits than minor
* version, so swap here.
*/
dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) |
diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
index 437d78a..39253d0 100644
--- a/drivers/net/mlx4/cq.c
+++ b/drivers/net/mlx4/cq.c
@@ -61,7 +61,7 @@ struct mlx4_cq_context {
__be32 solicit_producer_index;
__be32 consumer_index;
__be32 producer_index;
- u8 reserved6[2];
+ u32 reserved6[2];
__be64 db_rec_addr;
};

diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 0f11adb..27a82ce 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -490,9 +490,11 @@ static void mlx4_free_irqs(struct mlx4_dev *dev)

if (eq_table->have_irq)
free_irq(dev->pdev->irq, dev);
- for (i = 0; i < MLX4_NUM_EQ; ++i)
+ for (i = 0; i < MLX4_EQ_CATAS; ++i)
if (eq_table->eq[i].have_irq)
free_irq(eq_table->eq[i].irq, eq_table->eq + i);
+ if (eq_table->eq[MLX4_EQ_CATAS].have_irq)
+ free_irq(eq_table->eq[MLX4_EQ_CATAS].irq, dev);
}

static int __devinit mlx4_map_clr_int(struct mlx4_dev *dev)
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index cfa5cc0..e7ca118 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -37,6 +37,10 @@
#include "fw.h"
#include "icm.h"

+enum {
+ MLX4_COMMAND_INTERFACE_REV = 1
+};
+
extern void __buggy_use_of_MLX4_GET(void);
extern void __buggy_use_of_MLX4_PUT(void);

@@ -452,10 +456,12 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
u32 *outbox;
int err = 0;
u64 fw_ver;
+ u16 cmd_if_rev;
u8 lg;

#define QUERY_FW_OUT_SIZE 0x100
#define QUERY_FW_VER_OFFSET 0x00
+#define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
#define QUERY_FW_MAX_CMD_OFFSET 0x0f
#define QUERY_FW_ERR_START_OFFSET 0x30
#define QUERY_FW_ERR_SIZE_OFFSET 0x38
@@ -477,21 +483,36 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)

MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
/*
- * FW subminor version is at more signifant bits than minor
+ * FW subminor version is at more significant bits than minor
* version, so swap here.
*/
dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
((fw_ver & 0xffff0000ull) >> 16) |
((fw_ver & 0x0000ffffull) << 16);

+ MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
+ if (cmd_if_rev != MLX4_COMMAND_INTERFACE_REV) {
+ mlx4_err(dev, "Installed FW has unsupported "
+ "command interface revision %d.\n",
+ cmd_if_rev);
+ mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
+ (int) (dev->caps.fw_ver >> 32),
+ (int) (dev->caps.fw_ver >> 16) & 0xffff,
+ (int) dev->caps.fw_ver & 0xffff);
+ mlx4_err(dev, "This driver version supports only revision %d.\n",
+ MLX4_COMMAND_INTERFACE_REV);
+ err = -ENODEV;
+ goto out;
+ }
+
MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
cmd->max_cmds = 1 << lg;

- mlx4_dbg(dev, "FW version %d.%d.%03d, max commands %d\n",
+ mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
(int) (dev->caps.fw_ver >> 32),
(int) (dev->caps.fw_ver >> 16) & 0xffff,
(int) dev->caps.fw_ver & 0xffff,
- cmd->max_cmds);
+ cmd_if_rev, cmd->max_cmds);

MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c
index 65854f9..9ae951b 100644
--- a/drivers/net/mlx4/intf.c
+++ b/drivers/net/mlx4/intf.c
@@ -135,9 +135,6 @@ int mlx4_register_device(struct mlx4_dev *dev)
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_interface *intf;

- INIT_LIST_HEAD(&priv->ctx_list);
- spin_lock_init(&priv->ctx_lock);
-
mutex_lock(&intf_mutex);

list_add_tail(&priv->dev_list, &dev_list);
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 20b8c0d..d417293 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -787,6 +787,8 @@ static int __devinit mlx4_init_one(struct pci_dev *pdev,

dev = &priv->dev;
dev->pdev = pdev;
+ INIT_LIST_HEAD(&priv->ctx_list);
+ spin_lock_init(&priv->ctx_lock);

/*
* Now reset the HCA before we touch the PCI capabilities or
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
index b33864d..d0808fa 100644
--- a/drivers/net/mlx4/mr.c
+++ b/drivers/net/mlx4/mr.c
@@ -324,15 +324,17 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
MLX4_MPT_FLAG_MIO |
MLX4_MPT_FLAG_REGION |
mr->access);
- if (mr->mtt.order < 0)
- mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);

mpt_entry->key = cpu_to_be32(key_to_hw_index(mr->key));
mpt_entry->pd = cpu_to_be32(mr->pd);
mpt_entry->start = cpu_to_be64(mr->iova);
mpt_entry->length = cpu_to_be64(mr->size);
mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);
- mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));
+ if (mr->mtt.order < 0) {
+ mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);
+ mpt_entry->mtt_seg = 0;
+ } else
+ mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));

err = mlx4_SW2HW_MPT(dev, mailbox,
key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));
-
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