[PATCH 09/13] nvme-rdma: remove I/O polling support
From: Christoph Hellwig <hch@lst.de>
Date: 2018-11-29 19:13:56
Also in:
linux-nvme
Subsystem:
nvm express driver, the rest · Maintainers:
Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Linus Torvalds
The code was always a bit of a hack that digs far too much into RDMA core internals. Lets kick it out and reimplement proper dedicated poll queues as needed. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/nvme/host/rdma.c | 24 ------------------------ 1 file changed, 24 deletions(-)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index ccfde6c7c0a5..a62e9f177c06 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c@@ -1736,29 +1736,6 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx, return BLK_STS_IOERR; } -static int nvme_rdma_poll(struct blk_mq_hw_ctx *hctx) -{ - struct nvme_rdma_queue *queue = hctx->driver_data; - struct ib_cq *cq = queue->ib_cq; - struct ib_wc wc; - int found = 0; - - while (ib_poll_cq(cq, 1, &wc) > 0) { - struct ib_cqe *cqe = wc.wr_cqe; - - if (cqe) { - if (cqe->done == nvme_rdma_recv_done) { - nvme_rdma_recv_done(cq, &wc); - found++; - } else { - cqe->done(cq, &wc); - } - } - } - - return found; -} - static void nvme_rdma_complete_rq(struct request *rq) { struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);
@@ -1780,7 +1757,6 @@ static const struct blk_mq_ops nvme_rdma_mq_ops = { .init_request = nvme_rdma_init_request, .exit_request = nvme_rdma_exit_request, .init_hctx = nvme_rdma_init_hctx, - .poll = nvme_rdma_poll, .timeout = nvme_rdma_timeout, .map_queues = nvme_rdma_map_queues, };
--
2.19.1