Add checksum offload support to mlx4
Signed-off-by: Ali Ayub <[EMAIL PROTECTED]>
Signed-off-by: Eli Cohen <[EMAIL PROTECTED]>
---
Index: ofa_1_3_dev_kernel/include/linux/mlx4/cq.h
===================================================================
--- ofa_1_3_dev_kernel.orig/include/linux/mlx4/cq.h 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/include/linux/mlx4/cq.h 2007-09-24 12:36:46.000000000
+0200
@@ -45,11 +45,11 @@ struct mlx4_cqe {
u8 sl;
u8 reserved1;
__be16 rlid;
- u32 reserved2;
+ __be32 ipoib_status;
__be32 byte_cnt;
__be16 wqe_index;
__be16 checksum;
- u8 reserved3[3];
+ u8 reserved2[3];
u8 owner_sr_opcode;
};
Index: ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/cq.c
===================================================================
--- ofa_1_3_dev_kernel.orig/drivers/infiniband/hw/mlx4/cq.c 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/cq.c 2007-09-24
12:38:29.000000000 +0200
@@ -439,6 +439,8 @@ static int mlx4_ib_poll_one(struct mlx4_
wc->wc_flags |= be32_to_cpu(cqe->g_mlpath_rqpn) &
0x80000000 ?
IB_WC_GRH : 0;
wc->pkey_index = be32_to_cpu(cqe->immed_rss_invalid) >> 16;
+ wc->csum_ok = be32_to_cpu(cqe->ipoib_status) & 0x10000000 &&
+ be16_to_cpu(cqe->checksum) == 0xffff;
}
return 0;
Index: ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/main.c
===================================================================
--- ofa_1_3_dev_kernel.orig/drivers/infiniband/hw/mlx4/main.c 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/main.c 2007-09-24
12:36:46.000000000 +0200
@@ -100,6 +100,8 @@ static int mlx4_ib_query_device(struct i
props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
+ if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
+ props->device_cap_flags |= IB_DEVICE_IP_CSUM;
props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data +
36)) &
0xffffff;
@@ -626,6 +628,9 @@ static void *mlx4_ib_add(struct mlx4_dev
ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
+ if (ibdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
+ ibdev->ib_dev.flags |= IB_DEVICE_IP_CSUM;
+
if (init_node_data(ibdev))
goto err_map;
Index: ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/qp.c
===================================================================
--- ofa_1_3_dev_kernel.orig/drivers/infiniband/hw/mlx4/qp.c 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/drivers/infiniband/hw/mlx4/qp.c 2007-09-24
12:36:46.000000000 +0200
@@ -1433,6 +1433,10 @@ int mlx4_ib_post_send(struct ib_qp *ibqp
cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE) : 0) |
(wr->send_flags & IB_SEND_SOLICITED ?
cpu_to_be32(MLX4_WQE_CTRL_SOLICITED) : 0) |
+ ((wr->send_flags & IB_SEND_IP_CSUM) ?
+ cpu_to_be32(MLX4_WQE_CTRL_IP_CSUM) : 0) |
+ ((wr->send_flags & IB_SEND_UDP_TCP_CSUM) ?
+ cpu_to_be32(MLX4_WQE_CTRL_TCP_UDP_CSUM) : 0) |
qp->sq_signal_bits;
if (wr->opcode == IB_WR_SEND_WITH_IMM ||
Index: ofa_1_3_dev_kernel/include/linux/mlx4/qp.h
===================================================================
--- ofa_1_3_dev_kernel.orig/include/linux/mlx4/qp.h 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/include/linux/mlx4/qp.h 2007-09-24 12:36:46.000000000
+0200
@@ -162,6 +162,8 @@ enum {
MLX4_WQE_CTRL_FENCE = 1 << 6,
MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
MLX4_WQE_CTRL_SOLICITED = 1 << 1,
+ MLX4_WQE_CTRL_IP_CSUM = 1 << 4,
+ MLX4_WQE_CTRL_TCP_UDP_CSUM = 1 << 5,
};
struct mlx4_wqe_ctrl_seg {
Index: ofa_1_3_dev_kernel/drivers/net/mlx4/fw.c
===================================================================
--- ofa_1_3_dev_kernel.orig/drivers/net/mlx4/fw.c 2007-09-24
11:19:08.000000000 +0200
+++ ofa_1_3_dev_kernel/drivers/net/mlx4/fw.c 2007-09-24 12:36:46.000000000
+0200
@@ -741,6 +741,9 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev,
MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
+
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 1000);
if (err)
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