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[2603:8081:140c:1a00:97f4:eab9:6f0e:197f]) by smtp.gmail.com with ESMTPSA id l3sm661529oth.36.2020.10.13.18.35.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Oct 2020 18:35:17 -0700 (PDT) From: Bob Pearson X-Google-Original-From: Bob Pearson To: jgg@nvidia.com, zyjzyj2000@gmail.com, linux-rdma@vger.kernel.org Cc: Bob Pearson Subject: [PATCH for-next] RDMA/rxe: Set max_seg_size to a valid value Date: Tue, 13 Oct 2020 20:33:42 -0500 Message-Id: <20201014013341.3452-1-rpearson@hpe.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org With the recent change to __sg_alloc_table_from_page the old value for max_seg_size is no longer valid. Change to a new parameter RXE_MAX_SEG_SIZE wich is set to 1G. Signed-off-by: Bob Pearson --- drivers/infiniband/sw/rxe/rxe_param.h | 1 + drivers/infiniband/sw/rxe/rxe_verbs.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h index 25ab50d9b7c2..03893d5634c8 100644 --- a/drivers/infiniband/sw/rxe/rxe_param.h +++ b/drivers/infiniband/sw/rxe/rxe_param.h @@ -36,6 +36,7 @@ static inline enum ib_mtu eth_mtu_int_to_enum(int mtu) /* default/initial rxe device parameter settings */ enum rxe_device_param { RXE_MAX_MR_SIZE = -1ull, + RXE_MAX_SEG_SIZE = SZ_1G, RXE_PAGE_SIZE_CAP = 0xfffff000, RXE_MAX_QP = 0x10000, RXE_MAX_QP_WR = 0x4000, diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index d487ccd7f8b9..0a7d7c55d8d6 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -1129,7 +1129,7 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name) addrconf_addr_eui48((unsigned char *)&dev->node_guid, rxe->ndev->dev_addr); dev->dev.dma_parms = &rxe->dma_parms; - dma_set_max_seg_size(&dev->dev, UINT_MAX); + dma_set_max_seg_size(&dev->dev, RXE_MAX_SEG_SIZE); dma_set_coherent_mask(&dev->dev, dma_get_required_mask(&dev->dev)); dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) -- 2.25.1