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net/mlx4_en: break out tx_desc write into separate function

Bladeren bron 
In preparation for writing the tx descriptor from multiple functions,
create a helper for both normal and blueflame access.

Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brenden Blanco
2016-07-19 12:16:54 -07:00
gecommit door David S. Miller
bovenliggende 6ce96ca348
commit 224e92e02a
3 gewijzigde bestanden met toevoegingen van 92 en 71 verwijderingen
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11
drivers/infiniband/hw/mlx4/qp.c
Bestand weergeven

@@ -232,7 +232,7 @@ static void stamp_send_wqe(struct mlx4_ib_qp *qp, int n, int size)
}
} else {
ctrl = buf = get_send_wqe(qp, n & (qp->sq.wqe_cnt - 1));
s = (ctrl->fence_size & 0x3f) << 4;
s = (ctrl->qpn_vlan.fence_size & 0x3f) << 4;
for (i = 64; i < s; i += 64) {
wqe = buf + i;
*wqe = cpu_to_be32(0xffffffff);
@@ -264,7 +264,7 @@ static void post_nop_wqe(struct mlx4_ib_qp *qp, int n, int size)
inl->byte_count = cpu_to_be32(1 << 31 | (size - s - sizeof *inl));
}
ctrl->srcrb_flags = 0;
ctrl->fence_size = size / 16;
ctrl->qpn_vlan.fence_size = size / 16;
/*
* Make sure descriptor is fully written before setting ownership bit
* (because HW can start executing as soon as we do).
@@ -1992,7 +1992,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
ctrl = get_send_wqe(qp, i);
ctrl->owner_opcode = cpu_to_be32(1 << 31);
if (qp->sq_max_wqes_per_wr == 1)
ctrl->fence_size = 1 << (qp->sq.wqe_shift - 4);
ctrl->qpn_vlan.fence_size =
1 << (qp->sq.wqe_shift - 4);
stamp_send_wqe(qp, i, 1 << qp->sq.wqe_shift);
}
@@ -3169,8 +3170,8 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
wmb();
*lso_wqe = lso_hdr_sz;
ctrl->fence_size = (wr->send_flags & IB_SEND_FENCE ?
MLX4_WQE_CTRL_FENCE : 0) | size;
ctrl->qpn_vlan.fence_size = (wr->send_flags & IB_SEND_FENCE ?
MLX4_WQE_CTRL_FENCE : 0) | size;
/*
* Make sure descriptor is fully written before