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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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53f33ae295
Supply interface functions to bond and unbond ports of a mlx4 internal interfaces. Example for such an interface is the one registered by the mlx4 IB driver under RoCE. There are 1. Functions to go in/out to/from bonded mode 2. Function to remap virtual ports to physical ports The bond_mutex prevents simultaneous access to data that keep status of the device in bonded mode. The upper mlx4 interface marks to the mlx4 core module that they want to be subject for such bonding by setting the MLX4_INTFF_BONDING flag. Interface which goes to/from bonded mode is re-created. The mlx4 Ethernet driver does not set this flag when registering the interface, the IB driver does. Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*
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* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/mlx4/qp.h>
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#include "mlx4_en.h"
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void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
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int is_tx, int rss, int qpn, int cqn,
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int user_prio, struct mlx4_qp_context *context)
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{
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struct mlx4_en_dev *mdev = priv->mdev;
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struct net_device *dev = priv->dev;
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memset(context, 0, sizeof *context);
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context->flags = cpu_to_be32(7 << 16 | rss << MLX4_RSS_QPC_FLAG_OFFSET);
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context->pd = cpu_to_be32(mdev->priv_pdn);
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context->mtu_msgmax = 0xff;
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if (!is_tx && !rss)
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context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
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if (is_tx) {
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context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
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if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP)
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context->params2 |= MLX4_QP_BIT_FPP;
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} else {
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context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
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}
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context->usr_page = cpu_to_be32(mdev->priv_uar.index);
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context->local_qpn = cpu_to_be32(qpn);
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context->pri_path.ackto = 1 & 0x07;
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context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
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if (user_prio >= 0) {
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context->pri_path.sched_queue |= user_prio << 3;
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context->pri_path.feup = MLX4_FEUP_FORCE_ETH_UP;
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}
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context->pri_path.counter_index = 0xff;
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context->cqn_send = cpu_to_be32(cqn);
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context->cqn_recv = cpu_to_be32(cqn);
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context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
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if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX))
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context->param3 |= cpu_to_be32(1 << 30);
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if (!is_tx && !rss &&
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(mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)) {
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en_dbg(HW, priv, "Setting RX qp %x tunnel mode to RX tunneled & non-tunneled\n", qpn);
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context->srqn = cpu_to_be32(7 << 28); /* this fills bits 30:28 */
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}
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}
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int mlx4_en_map_buffer(struct mlx4_buf *buf)
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{
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struct page **pages;
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int i;
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if (BITS_PER_LONG == 64 || buf->nbufs == 1)
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return 0;
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pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
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if (!pages)
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return -ENOMEM;
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for (i = 0; i < buf->nbufs; ++i)
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pages[i] = virt_to_page(buf->page_list[i].buf);
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buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
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kfree(pages);
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if (!buf->direct.buf)
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return -ENOMEM;
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return 0;
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}
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void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
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{
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if (BITS_PER_LONG == 64 || buf->nbufs == 1)
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return;
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vunmap(buf->direct.buf);
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}
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void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
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{
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return;
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}
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