diff options
Diffstat (limited to 'drivers/infiniband')
-rw-r--r-- | drivers/infiniband/core/cq.c | 10 | ||||
-rw-r--r-- | drivers/infiniband/core/device.c | 29 | ||||
-rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_utils.c | 8 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 2 | ||||
-rw-r--r-- | drivers/infiniband/hw/qib/qib_iba7322.c | 2 | ||||
-rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma.h | 3 | ||||
-rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h | 2 | ||||
-rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 17 | ||||
-rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 42 | ||||
-rw-r--r-- | drivers/infiniband/sw/rdmavt/mmap.c | 4 | ||||
-rw-r--r-- | drivers/infiniband/sw/rxe/Kconfig | 2 | ||||
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_mmap.c | 4 | ||||
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_req.c | 2 | ||||
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_resp.c | 9 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 2 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 8 |
16 files changed, 91 insertions, 55 deletions
diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c index e95510117a6d..f2ae75fa3128 100644 --- a/drivers/infiniband/core/cq.c +++ b/drivers/infiniband/core/cq.c @@ -29,7 +29,13 @@ static int __ib_process_cq(struct ib_cq *cq, int budget) { int i, n, completed = 0; - while ((n = ib_poll_cq(cq, IB_POLL_BATCH, cq->wc)) > 0) { + /* + * budget might be (-1) if the caller does not + * want to bound this call, thus we need unsigned + * minimum here. + */ + while ((n = ib_poll_cq(cq, min_t(u32, IB_POLL_BATCH, + budget - completed), cq->wc)) > 0) { for (i = 0; i < n; i++) { struct ib_wc *wc = &cq->wc[i]; @@ -196,7 +202,7 @@ void ib_free_cq(struct ib_cq *cq) irq_poll_disable(&cq->iop); break; case IB_POLL_WORKQUEUE: - flush_work(&cq->work); + cancel_work_sync(&cq->work); break; default: WARN_ON_ONCE(1); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 593d2ce6ec7c..7c9e34d679d3 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -336,12 +336,26 @@ int ib_register_device(struct ib_device *device, struct device *parent = device->dev.parent; WARN_ON_ONCE(!parent); - if (!device->dev.dma_ops) - device->dev.dma_ops = parent->dma_ops; - if (!device->dev.dma_mask) - device->dev.dma_mask = parent->dma_mask; - if (!device->dev.coherent_dma_mask) - device->dev.coherent_dma_mask = parent->coherent_dma_mask; + WARN_ON_ONCE(device->dma_device); + if (device->dev.dma_ops) { + /* + * The caller provided custom DMA operations. Copy the + * DMA-related fields that are used by e.g. dma_alloc_coherent() + * into device->dev. + */ + device->dma_device = &device->dev; + if (!device->dev.dma_mask) + device->dev.dma_mask = parent->dma_mask; + if (!device->dev.coherent_dma_mask) + device->dev.coherent_dma_mask = + parent->coherent_dma_mask; + } else { + /* + * The caller did not provide custom DMA operations. Use the + * DMA mapping operations of the parent device. + */ + device->dma_device = parent; + } mutex_lock(&device_mutex); @@ -1015,8 +1029,7 @@ static int __init ib_core_init(void) return -ENOMEM; ib_comp_wq = alloc_workqueue("ib-comp-wq", - WQ_UNBOUND | WQ_HIGHPRI | WQ_MEM_RECLAIM, - WQ_UNBOUND_MAX_ACTIVE); + WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_SYSFS, 0); if (!ib_comp_wq) { ret = -ENOMEM; goto err; diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c index 0f5d43d1f5fc..70c3e9e79508 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_utils.c +++ b/drivers/infiniband/hw/i40iw/i40iw_utils.c @@ -160,6 +160,9 @@ int i40iw_inetaddr_event(struct notifier_block *notifier, return NOTIFY_DONE; iwdev = &hdl->device; + if (iwdev->init_state < INET_NOTIFIER) + return NOTIFY_DONE; + netdev = iwdev->ldev->netdev; upper_dev = netdev_master_upper_dev_get(netdev); if (netdev != event_netdev) @@ -214,6 +217,9 @@ int i40iw_inet6addr_event(struct notifier_block *notifier, return NOTIFY_DONE; iwdev = &hdl->device; + if (iwdev->init_state < INET_NOTIFIER) + return NOTIFY_DONE; + netdev = iwdev->ldev->netdev; if (netdev != event_netdev) return NOTIFY_DONE; @@ -260,6 +266,8 @@ int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void * if (!iwhdl) return NOTIFY_DONE; iwdev = &iwhdl->device; + if (iwdev->init_state < INET_NOTIFIER) + return NOTIFY_DONE; p = (__be32 *)neigh->primary_key; i40iw_copy_ip_ntohl(local_ipaddr, p); if (neigh->nud_state & NUD_VALID) { diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index bc9fb144e57b..c52edeafd616 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -372,7 +372,7 @@ static int _ocrdma_pd_mgr_put_bitmap(struct ocrdma_dev *dev, u16 pd_id, return 0; } -static u8 ocrdma_put_pd_num(struct ocrdma_dev *dev, u16 pd_id, +static int ocrdma_put_pd_num(struct ocrdma_dev *dev, u16 pd_id, bool dpp_pool) { int status; diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 12c4208fd701..af9f596bb68b 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -7068,7 +7068,7 @@ static void qib_7322_txchk_change(struct qib_devdata *dd, u32 start, unsigned long flags; while (wait) { - unsigned long shadow; + unsigned long shadow = 0; int cstart, previ = -1; /* diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h index 3cd96c1b9502..9fbe22d3467b 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h @@ -69,6 +69,9 @@ */ #define PCI_DEVICE_ID_VMWARE_PVRDMA 0x0820 +#define PVRDMA_NUM_RING_PAGES 4 +#define PVRDMA_QP_NUM_HEADER_PAGES 1 + struct pvrdma_dev; struct pvrdma_page_dir { diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h index e69d6f3cae32..09078ccfaec7 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h @@ -132,7 +132,7 @@ enum pvrdma_pci_resource { enum pvrdma_device_ctl { PVRDMA_DEVICE_CTL_ACTIVATE, /* Activate device. */ - PVRDMA_DEVICE_CTL_QUIESCE, /* Quiesce device. */ + PVRDMA_DEVICE_CTL_UNQUIESCE, /* Unquiesce device. */ PVRDMA_DEVICE_CTL_RESET, /* Reset device. */ }; diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c index 100bea5c42ff..34ebc7615411 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c @@ -56,7 +56,7 @@ #include "pvrdma.h" #define DRV_NAME "vmw_pvrdma" -#define DRV_VERSION "1.0.0.0-k" +#define DRV_VERSION "1.0.1.0-k" static DEFINE_MUTEX(pvrdma_device_list_lock); static LIST_HEAD(pvrdma_device_list); @@ -660,7 +660,16 @@ static void pvrdma_netdevice_event_handle(struct pvrdma_dev *dev, pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ERR); break; case NETDEV_UP: - pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ACTIVE); + pvrdma_write_reg(dev, PVRDMA_REG_CTL, + PVRDMA_DEVICE_CTL_UNQUIESCE); + + mb(); + + if (pvrdma_read_reg(dev, PVRDMA_REG_ERR)) + dev_err(&dev->pdev->dev, + "failed to activate device during link up\n"); + else + pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ACTIVE); break; default: dev_dbg(&dev->pdev->dev, "ignore netdevice event %ld on %s\n", @@ -858,7 +867,7 @@ static int pvrdma_pci_probe(struct pci_dev *pdev, dev->dsr->resp_slot_dma = (u64)slot_dma; /* Async event ring */ - dev->dsr->async_ring_pages.num_pages = 4; + dev->dsr->async_ring_pages.num_pages = PVRDMA_NUM_RING_PAGES; ret = pvrdma_page_dir_init(dev, &dev->async_pdir, dev->dsr->async_ring_pages.num_pages, true); if (ret) @@ -867,7 +876,7 @@ static int pvrdma_pci_probe(struct pci_dev *pdev, dev->dsr->async_ring_pages.pdir_dma = dev->async_pdir.dir_dma; /* CQ notification ring */ - dev->dsr->cq_ring_pages.num_pages = 4; + dev->dsr->cq_ring_pages.num_pages = PVRDMA_NUM_RING_PAGES; ret = pvrdma_page_dir_init(dev, &dev->cq_pdir, dev->dsr->cq_ring_pages.num_pages, true); if (ret) diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c index dbbfd35e7da7..30062aad3af1 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c @@ -170,8 +170,9 @@ static int pvrdma_set_sq_size(struct pvrdma_dev *dev, struct ib_qp_cap *req_cap, sizeof(struct pvrdma_sge) * qp->sq.max_sg); /* Note: one extra page for the header. */ - qp->npages_send = 1 + (qp->sq.wqe_cnt * qp->sq.wqe_size + - PAGE_SIZE - 1) / PAGE_SIZE; + qp->npages_send = PVRDMA_QP_NUM_HEADER_PAGES + + (qp->sq.wqe_cnt * qp->sq.wqe_size + PAGE_SIZE - 1) / + PAGE_SIZE; return 0; } @@ -288,7 +289,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd, qp->npages = qp->npages_send + qp->npages_recv; /* Skip header page. */ - qp->sq.offset = PAGE_SIZE; + qp->sq.offset = PVRDMA_QP_NUM_HEADER_PAGES * PAGE_SIZE; /* Recv queue pages are after send pages. */ qp->rq.offset = qp->npages_send * PAGE_SIZE; @@ -341,7 +342,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd, cmd->qp_type = ib_qp_type_to_pvrdma(init_attr->qp_type); cmd->access_flags = IB_ACCESS_LOCAL_WRITE; cmd->total_chunks = qp->npages; - cmd->send_chunks = qp->npages_send - 1; + cmd->send_chunks = qp->npages_send - PVRDMA_QP_NUM_HEADER_PAGES; cmd->pdir_dma = qp->pdir.dir_dma; dev_dbg(&dev->pdev->dev, "create queuepair with %d, %d, %d, %d\n", @@ -554,13 +555,13 @@ out: return ret; } -static inline void *get_sq_wqe(struct pvrdma_qp *qp, int n) +static inline void *get_sq_wqe(struct pvrdma_qp *qp, unsigned int n) { return pvrdma_page_dir_get_ptr(&qp->pdir, qp->sq.offset + n * qp->sq.wqe_size); } -static inline void *get_rq_wqe(struct pvrdma_qp *qp, int n) +static inline void *get_rq_wqe(struct pvrdma_qp *qp, unsigned int n) { return pvrdma_page_dir_get_ptr(&qp->pdir, qp->rq.offset + n * qp->rq.wqe_size); @@ -598,9 +599,7 @@ int pvrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, unsigned long flags; struct pvrdma_sq_wqe_hdr *wqe_hdr; struct pvrdma_sge *sge; - int i, index; - int nreq; - int ret; + int i, ret; /* * In states lower than RTS, we can fail immediately. In other states, @@ -613,9 +612,8 @@ int pvrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, spin_lock_irqsave(&qp->sq.lock, flags); - index = pvrdma_idx(&qp->sq.ring->prod_tail, qp->sq.wqe_cnt); - for (nreq = 0; wr; nreq++, wr = wr->next) { - unsigned int tail; + while (wr) { + unsigned int tail = 0; if (unlikely(!pvrdma_idx_ring_has_space( qp->sq.ring, qp->sq.wqe_cnt, &tail))) { @@ -680,7 +678,7 @@ int pvrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } } - wqe_hdr = (struct pvrdma_sq_wqe_hdr *)get_sq_wqe(qp, index); + wqe_hdr = (struct pvrdma_sq_wqe_hdr *)get_sq_wqe(qp, tail); memset(wqe_hdr, 0, sizeof(*wqe_hdr)); wqe_hdr->wr_id = wr->wr_id; wqe_hdr->num_sge = wr->num_sge; @@ -771,12 +769,11 @@ int pvrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, /* Make sure wqe is written before index update */ smp_wmb(); - index++; - if (unlikely(index >= qp->sq.wqe_cnt)) - index = 0; /* Update shared sq ring */ pvrdma_idx_ring_inc(&qp->sq.ring->prod_tail, qp->sq.wqe_cnt); + + wr = wr->next; } ret = 0; @@ -806,7 +803,6 @@ int pvrdma_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct pvrdma_qp *qp = to_vqp(ibqp); struct pvrdma_rq_wqe_hdr *wqe_hdr; struct pvrdma_sge *sge; - int index, nreq; int ret = 0; int i; @@ -821,9 +817,8 @@ int pvrdma_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, spin_lock_irqsave(&qp->rq.lock, flags); - index = pvrdma_idx(&qp->rq.ring->prod_tail, qp->rq.wqe_cnt); - for (nreq = 0; wr; nreq++, wr = wr->next) { - unsigned int tail; + while (wr) { + unsigned int tail = 0; if (unlikely(wr->num_sge > qp->rq.max_sg || wr->num_sge < 0)) { @@ -843,7 +838,7 @@ int pvrdma_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, goto out; } - wqe_hdr = (struct pvrdma_rq_wqe_hdr *)get_rq_wqe(qp, index); + wqe_hdr = (struct pvrdma_rq_wqe_hdr *)get_rq_wqe(qp, tail); wqe_hdr->wr_id = wr->wr_id; wqe_hdr->num_sge = wr->num_sge; wqe_hdr->total_len = 0; @@ -859,12 +854,11 @@ int pvrdma_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, /* Make sure wqe is written before index update */ smp_wmb(); - index++; - if (unlikely(index >= qp->rq.wqe_cnt)) - index = 0; /* Update shared rq ring */ pvrdma_idx_ring_inc(&qp->rq.ring->prod_tail, qp->rq.wqe_cnt); + + wr = wr->next; } spin_unlock_irqrestore(&qp->rq.lock, flags); diff --git a/drivers/infiniband/sw/rdmavt/mmap.c b/drivers/infiniband/sw/rdmavt/mmap.c index e202b8142759..6b712eecbd37 100644 --- a/drivers/infiniband/sw/rdmavt/mmap.c +++ b/drivers/infiniband/sw/rdmavt/mmap.c @@ -170,9 +170,9 @@ struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, spin_lock_irq(&rdi->mmap_offset_lock); if (rdi->mmap_offset == 0) - rdi->mmap_offset = PAGE_SIZE; + rdi->mmap_offset = ALIGN(PAGE_SIZE, SHMLBA); ip->offset = rdi->mmap_offset; - rdi->mmap_offset += size; + rdi->mmap_offset += ALIGN(size, SHMLBA); spin_unlock_irq(&rdi->mmap_offset_lock); INIT_LIST_HEAD(&ip->pending_mmaps); diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig index 7d1ac27ed251..6332dedc11e8 100644 --- a/drivers/infiniband/sw/rxe/Kconfig +++ b/drivers/infiniband/sw/rxe/Kconfig @@ -22,4 +22,4 @@ config RDMA_RXE To configure and work with soft-RoCE driver please use the following wiki page under "configure Soft-RoCE (RXE)" section: - https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home + https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md diff --git a/drivers/infiniband/sw/rxe/rxe_mmap.c b/drivers/infiniband/sw/rxe/rxe_mmap.c index c572a4c09359..bd812e00988e 100644 --- a/drivers/infiniband/sw/rxe/rxe_mmap.c +++ b/drivers/infiniband/sw/rxe/rxe_mmap.c @@ -156,10 +156,10 @@ struct rxe_mmap_info *rxe_create_mmap_info(struct rxe_dev *rxe, spin_lock_bh(&rxe->mmap_offset_lock); if (rxe->mmap_offset == 0) - rxe->mmap_offset = PAGE_SIZE; + rxe->mmap_offset = ALIGN(PAGE_SIZE, SHMLBA); ip->info.offset = rxe->mmap_offset; - rxe->mmap_offset += size; + rxe->mmap_offset += ALIGN(size, SHMLBA); spin_unlock_bh(&rxe->mmap_offset_lock); diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c index dbfde0dc6ff7..9f95f50b2909 100644 --- a/drivers/infiniband/sw/rxe/rxe_req.c +++ b/drivers/infiniband/sw/rxe/rxe_req.c @@ -729,11 +729,11 @@ next_wqe: ret = rxe_xmit_packet(to_rdev(qp->ibqp.device), qp, &pkt, skb); if (ret) { qp->need_req_skb = 1; - kfree_skb(skb); rollback_state(wqe, qp, &rollback_wqe, rollback_psn); if (ret == -EAGAIN) { + kfree_skb(skb); rxe_run_task(&qp->req.task, 1); goto exit; } diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c index d404a8aba7af..c9dd385ce62e 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -813,18 +813,17 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt) WARN_ON_ONCE(1); } - /* We successfully processed this new request. */ - qp->resp.msn++; - /* next expected psn, read handles this separately */ qp->resp.psn = (pkt->psn + 1) & BTH_PSN_MASK; qp->resp.opcode = pkt->opcode; qp->resp.status = IB_WC_SUCCESS; - if (pkt->mask & RXE_COMP_MASK) + if (pkt->mask & RXE_COMP_MASK) { + /* We successfully processed this new request. */ + qp->resp.msn++; return RESPST_COMPLETE; - else if (qp_type(qp) == IB_QPT_RC) + } else if (qp_type(qp) == IB_QPT_RC) return RESPST_ACKNOWLEDGE; else return RESPST_CLEANUP; diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 9d0b22ad58c1..c1ae4aeae2f9 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -430,6 +430,7 @@ struct iser_fr_desc { struct list_head list; struct iser_reg_resources rsc; struct iser_pi_context *pi_ctx; + struct list_head all_list; }; /** @@ -443,6 +444,7 @@ struct iser_fr_pool { struct list_head list; spinlock_t lock; int size; + struct list_head all_list; }; /** diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 30b622f2ab73..c538a38c91ce 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -362,6 +362,7 @@ int iser_alloc_fastreg_pool(struct ib_conn *ib_conn, int i, ret; INIT_LIST_HEAD(&fr_pool->list); + INIT_LIST_HEAD(&fr_pool->all_list); spin_lock_init(&fr_pool->lock); fr_pool->size = 0; for (i = 0; i < cmds_max; i++) { @@ -373,6 +374,7 @@ int iser_alloc_fastreg_pool(struct ib_conn *ib_conn, } list_add_tail(&desc->list, &fr_pool->list); + list_add_tail(&desc->all_list, &fr_pool->all_list); fr_pool->size++; } @@ -392,13 +394,13 @@ void iser_free_fastreg_pool(struct ib_conn *ib_conn) struct iser_fr_desc *desc, *tmp; int i = 0; - if (list_empty(&fr_pool->list)) + if (list_empty(&fr_pool->all_list)) return; iser_info("freeing conn %p fr pool\n", ib_conn); - list_for_each_entry_safe(desc, tmp, &fr_pool->list, list) { - list_del(&desc->list); + list_for_each_entry_safe(desc, tmp, &fr_pool->all_list, all_list) { + list_del(&desc->all_list); iser_free_reg_res(&desc->rsc); if (desc->pi_ctx) iser_free_pi_ctx(desc->pi_ctx); |