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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-01 11:01:54 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-01 11:01:54 -0800 |
commit | 4bc2a9bf8cbb63f3bb9797b2bf30b2316bd27a2b (patch) | |
tree | a02a03a4c75e3da0843168456124f60afae49200 | |
parent | 6a1214113090905aca6a492fc8ef10d84c608a69 (diff) | |
parent | b0f43dcca8a1f46e17b26d10f3cb1b297ebfb44e (diff) | |
download | lwn-4bc2a9bf8cbb63f3bb9797b2bf30b2316bd27a2b.tar.gz lwn-4bc2a9bf8cbb63f3bb9797b2bf30b2316bd27a2b.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/mlx4: Fix MTT leakage in resize CQ
IB/ehca: Fix problem with generated flush work completions
IB/ehca: Change misleading error message on memory hotplug
mlx4_core: Save/restore default port IB capability mask
-rw-r--r-- | drivers/infiniband/hw/ehca/ehca_classes.h | 4 | ||||
-rw-r--r-- | drivers/infiniband/hw/ehca/ehca_main.c | 3 | ||||
-rw-r--r-- | drivers/infiniband/hw/ehca/ehca_qp.c | 26 | ||||
-rw-r--r-- | drivers/infiniband/hw/ehca/ehca_reqs.c | 51 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx4/cq.c | 5 | ||||
-rw-r--r-- | drivers/net/mlx4/main.c | 8 | ||||
-rw-r--r-- | drivers/net/mlx4/mlx4.h | 1 | ||||
-rw-r--r-- | drivers/net/mlx4/port.c | 39 | ||||
-rw-r--r-- | include/linux/mlx4/device.h | 1 |
9 files changed, 107 insertions, 31 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 4df887af66a5..7fc35cf0cddf 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -163,7 +163,8 @@ struct ehca_mod_qp_parm { /* struct for tracking if cqes have been reported to the application */ struct ehca_qmap_entry { u16 app_wr_id; - u16 reported; + u8 reported; + u8 cqe_req; }; struct ehca_queue_map { @@ -171,6 +172,7 @@ struct ehca_queue_map { unsigned int entries; unsigned int tail; unsigned int left_to_poll; + unsigned int next_wqe_idx; /* Idx to first wqe to be flushed */ }; struct ehca_qp { diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index bb02a86aa526..bec7e0249358 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -994,8 +994,7 @@ static int ehca_mem_notifier(struct notifier_block *nb, if (printk_timed_ratelimit(&ehca_dmem_warn_time, 30 * 1000)) ehca_gen_err("DMEM operations are not allowed" - "as long as an ehca adapter is" - "attached to the LPAR"); + "in conjunction with eHCA"); return NOTIFY_BAD; } } diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 9e05ee2db39b..cadbf0cdd910 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -435,9 +435,13 @@ static void reset_queue_map(struct ehca_queue_map *qmap) { int i; - qmap->tail = 0; - for (i = 0; i < qmap->entries; i++) + qmap->tail = qmap->entries - 1; + qmap->left_to_poll = 0; + qmap->next_wqe_idx = 0; + for (i = 0; i < qmap->entries; i++) { qmap->map[i].reported = 1; + qmap->map[i].cqe_req = 0; + } } /* @@ -1121,6 +1125,7 @@ static int calc_left_cqes(u64 wqe_p, struct ipz_queue *ipz_queue, void *wqe_v; u64 q_ofs; u32 wqe_idx; + unsigned int tail_idx; /* convert real to abs address */ wqe_p = wqe_p & (~(1UL << 63)); @@ -1133,12 +1138,17 @@ static int calc_left_cqes(u64 wqe_p, struct ipz_queue *ipz_queue, return -EFAULT; } + tail_idx = (qmap->tail + 1) % qmap->entries; wqe_idx = q_ofs / ipz_queue->qe_size; - if (wqe_idx < qmap->tail) - qmap->left_to_poll = (qmap->entries - qmap->tail) + wqe_idx; - else - qmap->left_to_poll = wqe_idx - qmap->tail; + /* check all processed wqes, whether a cqe is requested or not */ + while (tail_idx != wqe_idx) { + if (qmap->map[tail_idx].cqe_req) + qmap->left_to_poll++; + tail_idx = (tail_idx + 1) % qmap->entries; + } + /* save index in queue, where we have to start flushing */ + qmap->next_wqe_idx = wqe_idx; return 0; } @@ -1185,10 +1195,14 @@ static int check_for_left_cqes(struct ehca_qp *my_qp, struct ehca_shca *shca) } else { spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); my_qp->sq_map.left_to_poll = 0; + my_qp->sq_map.next_wqe_idx = (my_qp->sq_map.tail + 1) % + my_qp->sq_map.entries; spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); my_qp->rq_map.left_to_poll = 0; + my_qp->rq_map.next_wqe_idx = (my_qp->rq_map.tail + 1) % + my_qp->rq_map.entries; spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, flags); } diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index 64928079eafa..00a648f4316c 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -179,6 +179,7 @@ static inline int ehca_write_swqe(struct ehca_qp *qp, qmap_entry->app_wr_id = get_app_wr_id(send_wr->wr_id); qmap_entry->reported = 0; + qmap_entry->cqe_req = 0; switch (send_wr->opcode) { case IB_WR_SEND: @@ -203,8 +204,10 @@ static inline int ehca_write_swqe(struct ehca_qp *qp, if ((send_wr->send_flags & IB_SEND_SIGNALED || qp->init_attr.sq_sig_type == IB_SIGNAL_ALL_WR) - && !hidden) + && !hidden) { wqe_p->wr_flag |= WQE_WRFLAG_REQ_SIGNAL_COM; + qmap_entry->cqe_req = 1; + } if (send_wr->opcode == IB_WR_SEND_WITH_IMM || send_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) { @@ -569,6 +572,7 @@ static int internal_post_recv(struct ehca_qp *my_qp, qmap_entry = &my_qp->rq_map.map[rq_map_idx]; qmap_entry->app_wr_id = get_app_wr_id(cur_recv_wr->wr_id); qmap_entry->reported = 0; + qmap_entry->cqe_req = 1; wqe_cnt++; } /* eof for cur_recv_wr */ @@ -706,27 +710,34 @@ repoll: goto repoll; wc->qp = &my_qp->ib_qp; + qmap_tail_idx = get_app_wr_id(cqe->work_request_id); + if (!(cqe->w_completion_flags & WC_SEND_RECEIVE_BIT)) + /* We got a send completion. */ + qmap = &my_qp->sq_map; + else + /* We got a receive completion. */ + qmap = &my_qp->rq_map; + + /* advance the tail pointer */ + qmap->tail = qmap_tail_idx; + if (is_error) { /* * set left_to_poll to 0 because in error state, we will not * get any additional CQEs */ - ehca_add_to_err_list(my_qp, 1); + my_qp->sq_map.next_wqe_idx = (my_qp->sq_map.tail + 1) % + my_qp->sq_map.entries; my_qp->sq_map.left_to_poll = 0; + ehca_add_to_err_list(my_qp, 1); + my_qp->rq_map.next_wqe_idx = (my_qp->rq_map.tail + 1) % + my_qp->rq_map.entries; + my_qp->rq_map.left_to_poll = 0; if (HAS_RQ(my_qp)) ehca_add_to_err_list(my_qp, 0); - my_qp->rq_map.left_to_poll = 0; } - qmap_tail_idx = get_app_wr_id(cqe->work_request_id); - if (!(cqe->w_completion_flags & WC_SEND_RECEIVE_BIT)) - /* We got a send completion. */ - qmap = &my_qp->sq_map; - else - /* We got a receive completion. */ - qmap = &my_qp->rq_map; - qmap_entry = &qmap->map[qmap_tail_idx]; if (qmap_entry->reported) { ehca_warn(cq->device, "Double cqe on qp_num=%#x", @@ -738,10 +749,6 @@ repoll: wc->wr_id = replace_wr_id(cqe->work_request_id, qmap_entry->app_wr_id); qmap_entry->reported = 1; - /* this is a proper completion, we need to advance the tail pointer */ - if (++qmap->tail == qmap->entries) - qmap->tail = 0; - /* if left_to_poll is decremented to 0, add the QP to the error list */ if (qmap->left_to_poll > 0) { qmap->left_to_poll--; @@ -805,13 +812,14 @@ static int generate_flush_cqes(struct ehca_qp *my_qp, struct ib_cq *cq, else qmap = &my_qp->rq_map; - qmap_entry = &qmap->map[qmap->tail]; + qmap_entry = &qmap->map[qmap->next_wqe_idx]; while ((nr < num_entries) && (qmap_entry->reported == 0)) { /* generate flush CQE */ + memset(wc, 0, sizeof(*wc)); - offset = qmap->tail * ipz_queue->qe_size; + offset = qmap->next_wqe_idx * ipz_queue->qe_size; wqe = (struct ehca_wqe *)ipz_qeit_calc(ipz_queue, offset); if (!wqe) { ehca_err(cq->device, "Invalid wqe offset=%#lx on " @@ -850,11 +858,12 @@ static int generate_flush_cqes(struct ehca_qp *my_qp, struct ib_cq *cq, wc->qp = &my_qp->ib_qp; - /* mark as reported and advance tail pointer */ + /* mark as reported and advance next_wqe pointer */ qmap_entry->reported = 1; - if (++qmap->tail == qmap->entries) - qmap->tail = 0; - qmap_entry = &qmap->map[qmap->tail]; + qmap->next_wqe_idx++; + if (qmap->next_wqe_idx == qmap->entries) + qmap->next_wqe_idx = 0; + qmap_entry = &qmap->map[qmap->next_wqe_idx]; wc++; nr++; } diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index d0866a3636e2..18308494a195 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -343,6 +343,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) { struct mlx4_ib_dev *dev = to_mdev(ibcq->device); struct mlx4_ib_cq *cq = to_mcq(ibcq); + struct mlx4_mtt mtt; int outst_cqe; int err; @@ -376,10 +377,13 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) goto out; } + mtt = cq->buf.mtt; + err = mlx4_cq_resize(dev->dev, &cq->mcq, entries, &cq->resize_buf->buf.mtt); if (err) goto err_buf; + mlx4_mtt_cleanup(dev->dev, &mtt); if (ibcq->uobject) { cq->buf = cq->resize_buf->buf; cq->ibcq.cqe = cq->resize_buf->cqe; @@ -406,6 +410,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) goto out; err_buf: + mlx4_mtt_cleanup(dev->dev, &cq->resize_buf->buf.mtt); if (!ibcq->uobject) mlx4_ib_free_cq_buf(dev, &cq->resize_buf->buf, cq->resize_buf->cqe); diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 468921b8f4b6..90a0281d15ea 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -753,6 +753,7 @@ static int mlx4_setup_hca(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); int err; int port; + __be32 ib_port_default_caps; err = mlx4_init_uar_table(dev); if (err) { @@ -852,6 +853,13 @@ static int mlx4_setup_hca(struct mlx4_dev *dev) } for (port = 1; port <= dev->caps.num_ports; port++) { + ib_port_default_caps = 0; + err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps); + if (err) + mlx4_warn(dev, "failed to get port %d default " + "ib capabilities (%d). Continuing with " + "caps = 0\n", port, err); + dev->caps.ib_port_def_cap[port] = ib_port_default_caps; err = mlx4_SET_PORT(dev, port); if (err) { mlx4_err(dev, "Failed to set port %d, aborting\n", diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 56a2e213fe62..34c909deaff3 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -385,5 +385,6 @@ void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table); void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table); int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port); +int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps); #endif /* MLX4_H */ diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c index e2fdab42c4ce..0a057e5dc63b 100644 --- a/drivers/net/mlx4/port.c +++ b/drivers/net/mlx4/port.c @@ -258,6 +258,42 @@ out: } EXPORT_SYMBOL_GPL(mlx4_unregister_vlan); +int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps) +{ + struct mlx4_cmd_mailbox *inmailbox, *outmailbox; + u8 *inbuf, *outbuf; + int err; + + inmailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(inmailbox)) + return PTR_ERR(inmailbox); + + outmailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(outmailbox)) { + mlx4_free_cmd_mailbox(dev, inmailbox); + return PTR_ERR(outmailbox); + } + + inbuf = inmailbox->buf; + outbuf = outmailbox->buf; + memset(inbuf, 0, 256); + memset(outbuf, 0, 256); + inbuf[0] = 1; + inbuf[1] = 1; + inbuf[2] = 1; + inbuf[3] = 1; + *(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015); + *(__be32 *) (&inbuf[20]) = cpu_to_be32(port); + + err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3, + MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C); + if (!err) + *caps = *(__be32 *) (outbuf + 84); + mlx4_free_cmd_mailbox(dev, inmailbox); + mlx4_free_cmd_mailbox(dev, outmailbox); + return err; +} + int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port) { struct mlx4_cmd_mailbox *mailbox; @@ -273,7 +309,8 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port) ((u8 *) mailbox->buf)[3] = 6; ((__be16 *) mailbox->buf)[4] = cpu_to_be16(1 << 15); ((__be16 *) mailbox->buf)[6] = cpu_to_be16(1 << 15); - } + } else + ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port]; err = mlx4_cmd(dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B); diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index bd9977b89490..371086fd946f 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -179,6 +179,7 @@ struct mlx4_caps { int num_ports; int vl_cap[MLX4_MAX_PORTS + 1]; int ib_mtu_cap[MLX4_MAX_PORTS + 1]; + __be32 ib_port_def_cap[MLX4_MAX_PORTS + 1]; u64 def_mac[MLX4_MAX_PORTS + 1]; int eth_mtu_cap[MLX4_MAX_PORTS + 1]; int gid_table_len[MLX4_MAX_PORTS + 1]; |