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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

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This commit is contained in:
Linus Torvalds 2005-11-18 14:33:03 -08:00
commit 9b152d53b7
4 changed files with 31 additions and 26 deletions
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2
drivers/infiniband/core/user_mad.c
View file

@ -312,7 +312,7 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf,
int ret, length, hdr_len, copy_offset; int ret, length, hdr_len, copy_offset;
int rmpp_active = 0; int rmpp_active = 0;
if (count < sizeof (struct ib_user_mad)) if (count < sizeof (struct ib_user_mad) + IB_MGMT_RMPP_HDR)
return -EINVAL; return -EINVAL;
length = count - sizeof (struct ib_user_mad); length = count - sizeof (struct ib_user_mad);

37
drivers/infiniband/hw/mthca/mthca_qp.c
View file

@ -730,14 +730,15 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
} }
if (attr_mask & IB_QP_ACCESS_FLAGS) { if (attr_mask & IB_QP_ACCESS_FLAGS) {
qp_context->params2 |=
cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE ?
MTHCA_QP_BIT_RWE : 0);
/* /*
* Only enable RDMA/atomics if we have responder * Only enable RDMA reads and atomics if we have
* resources set to a non-zero value. * responder resources set to a non-zero value.
*/ */
if (qp->resp_depth) { if (qp->resp_depth) {
qp_context->params2 |=
cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE ?
MTHCA_QP_BIT_RWE : 0);
qp_context->params2 |= qp_context->params2 |=
cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_READ ? cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_READ ?
MTHCA_QP_BIT_RRE : 0); MTHCA_QP_BIT_RRE : 0);
@ -759,22 +760,19 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
if (qp->resp_depth && !attr->max_dest_rd_atomic) { if (qp->resp_depth && !attr->max_dest_rd_atomic) {
/* /*
* Lowering our responder resources to zero. * Lowering our responder resources to zero.
* Turn off RDMA/atomics as responder. * Turn off reads RDMA and atomics as responder.
* (RWE/RRE/RAE in params2 already zero) * (RRE/RAE in params2 already zero)
*/ */
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RWE | qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RRE |
MTHCA_QP_OPTPAR_RRE |
MTHCA_QP_OPTPAR_RAE); MTHCA_QP_OPTPAR_RAE);
} }
if (!qp->resp_depth && attr->max_dest_rd_atomic) { if (!qp->resp_depth && attr->max_dest_rd_atomic) {
/* /*
* Increasing our responder resources from * Increasing our responder resources from
* zero. Turn on RDMA/atomics as appropriate. * zero. Turn on RDMA reads and atomics as
* appropriate.
*/ */
qp_context->params2 |=
cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_WRITE ?
MTHCA_QP_BIT_RWE : 0);
qp_context->params2 |= qp_context->params2 |=
cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_READ ? cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_READ ?
MTHCA_QP_BIT_RRE : 0); MTHCA_QP_BIT_RRE : 0);
@ -782,8 +780,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_ATOMIC ? cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_ATOMIC ?
MTHCA_QP_BIT_RAE : 0); MTHCA_QP_BIT_RAE : 0);
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RWE | qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RRE |
MTHCA_QP_OPTPAR_RRE |
MTHCA_QP_OPTPAR_RAE); MTHCA_QP_OPTPAR_RAE);
} }
@ -921,10 +918,12 @@ static void mthca_adjust_qp_caps(struct mthca_dev *dev,
else else
qp->max_inline_data = max_data_size - MTHCA_INLINE_HEADER_SIZE; qp->max_inline_data = max_data_size - MTHCA_INLINE_HEADER_SIZE;
qp->sq.max_gs = max_data_size / sizeof (struct mthca_data_seg); qp->sq.max_gs = min_t(int, dev->limits.max_sg,
qp->rq.max_gs = (min(dev->limits.max_desc_sz, 1 << qp->rq.wqe_shift) - max_data_size / sizeof (struct mthca_data_seg));
sizeof (struct mthca_next_seg)) / qp->rq.max_gs = min_t(int, dev->limits.max_sg,
sizeof (struct mthca_data_seg); (min(dev->limits.max_desc_sz, 1 << qp->rq.wqe_shift) -
sizeof (struct mthca_next_seg)) /
sizeof (struct mthca_data_seg));
} }
/* /*

17
drivers/infiniband/ulp/srp/ib_srp.c
View file

@ -802,13 +802,21 @@ static int srp_post_recv(struct srp_target_port *target)
/* /*
* Must be called with target->scsi_host->host_lock held to protect * Must be called with target->scsi_host->host_lock held to protect
* req_lim and tx_head. * req_lim and tx_head. Lock cannot be dropped between call here and
* call to __srp_post_send().
*/ */
static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target) static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target)
{ {
if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE) if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
return NULL; return NULL;
if (unlikely(target->req_lim < 1)) {
if (printk_ratelimit())
printk(KERN_DEBUG PFX "Target has req_lim %d\n",
target->req_lim);
return NULL;
}
return target->tx_ring[target->tx_head & SRP_SQ_SIZE]; return target->tx_ring[target->tx_head & SRP_SQ_SIZE];
} }
@ -823,11 +831,6 @@ static int __srp_post_send(struct srp_target_port *target,
struct ib_send_wr wr, *bad_wr; struct ib_send_wr wr, *bad_wr;
int ret = 0; int ret = 0;
if (target->req_lim < 1) {
printk(KERN_ERR PFX "Target has req_lim %d\n", target->req_lim);
return -EAGAIN;
}
list.addr = iu->dma; list.addr = iu->dma;
list.length = len; list.length = len;
list.lkey = target->srp_host->mr->lkey; list.lkey = target->srp_host->mr->lkey;
@ -1417,6 +1420,8 @@ static ssize_t srp_create_target(struct class_device *class_dev,
if (!target_host) if (!target_host)
return -ENOMEM; return -ENOMEM;
target_host->max_lun = SRP_MAX_LUN;
target = host_to_target(target_host); target = host_to_target(target_host);
memset(target, 0, sizeof *target); memset(target, 0, sizeof *target);

1
drivers/infiniband/ulp/srp/ib_srp.h
View file

@ -54,6 +54,7 @@ enum {
SRP_PORT_REDIRECT = 1, SRP_PORT_REDIRECT = 1,
SRP_DLID_REDIRECT = 2, SRP_DLID_REDIRECT = 2,
SRP_MAX_LUN = 512,
SRP_MAX_IU_LEN = 256, SRP_MAX_IU_LEN = 256,
SRP_RQ_SHIFT = 6, SRP_RQ_SHIFT = 6,