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/*-
* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
*
* Copyright (c) 2021 - 2022 Intel Corporation
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenFabrics.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*$FreeBSD$*/
#include <sys/mman.h>
#include <stdbool.h>
#include <stdlib.h>
#include "irdma_umain.h"
#include "irdma-abi.h"
#include "ice_devids.h"
#include "i40e_devids.h"
#include "abi.h"
/**
* Driver version
*/
char libirdma_version[] = "0.0.51-k";
unsigned int irdma_dbg;
#define INTEL_HCA(d) \
{ .vendor = PCI_VENDOR_ID_INTEL, \
.device = d }
struct hca_info {
unsigned vendor;
unsigned device;
};
static const struct hca_info hca_table[] = {
INTEL_HCA(ICE_DEV_ID_E823L_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_E823L_SFP),
INTEL_HCA(ICE_DEV_ID_E823L_10G_BASE_T),
INTEL_HCA(ICE_DEV_ID_E823L_1GBE),
INTEL_HCA(ICE_DEV_ID_E823L_QSFP),
INTEL_HCA(ICE_DEV_ID_E810C_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_E810C_QSFP),
INTEL_HCA(ICE_DEV_ID_E810C_SFP),
INTEL_HCA(ICE_DEV_ID_E810_XXV_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_E810_XXV_QSFP),
INTEL_HCA(ICE_DEV_ID_E810_XXV_SFP),
INTEL_HCA(ICE_DEV_ID_E823C_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_E823C_QSFP),
INTEL_HCA(ICE_DEV_ID_E823C_SFP),
INTEL_HCA(ICE_DEV_ID_E823C_10G_BASE_T),
INTEL_HCA(ICE_DEV_ID_E823C_SGMII),
INTEL_HCA(ICE_DEV_ID_C822N_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_C822N_QSFP),
INTEL_HCA(ICE_DEV_ID_C822N_SFP),
INTEL_HCA(ICE_DEV_ID_E822C_10G_BASE_T),
INTEL_HCA(ICE_DEV_ID_E822C_SGMII),
INTEL_HCA(ICE_DEV_ID_E822L_BACKPLANE),
INTEL_HCA(ICE_DEV_ID_E822L_SFP),
INTEL_HCA(ICE_DEV_ID_E822L_10G_BASE_T),
INTEL_HCA(ICE_DEV_ID_E822L_SGMII),
};
static struct ibv_context_ops irdma_ctx_ops = {
.query_device = irdma_uquery_device,
.query_port = irdma_uquery_port,
.alloc_pd = irdma_ualloc_pd,
.dealloc_pd = irdma_ufree_pd,
.reg_mr = irdma_ureg_mr,
.rereg_mr = NULL,
.dereg_mr = irdma_udereg_mr,
.alloc_mw = irdma_ualloc_mw,
.dealloc_mw = irdma_udealloc_mw,
.bind_mw = irdma_ubind_mw,
.create_cq = irdma_ucreate_cq,
.poll_cq = irdma_upoll_cq,
.req_notify_cq = irdma_uarm_cq,
.cq_event = irdma_cq_event,
.resize_cq = irdma_uresize_cq,
.destroy_cq = irdma_udestroy_cq,
.create_qp = irdma_ucreate_qp,
.query_qp = irdma_uquery_qp,
.modify_qp = irdma_umodify_qp,
.destroy_qp = irdma_udestroy_qp,
.post_send = irdma_upost_send,
.post_recv = irdma_upost_recv,
.create_ah = irdma_ucreate_ah,
.destroy_ah = irdma_udestroy_ah,
.attach_mcast = irdma_uattach_mcast,
.detach_mcast = irdma_udetach_mcast,
};
static int
irdma_init_context(struct verbs_device *vdev,
struct ibv_context *ctx, int cmd_fd)
{
struct irdma_uvcontext *iwvctx;
struct irdma_get_context cmd = {};
struct irdma_get_context_resp resp = {};
struct ibv_pd *ibv_pd;
u64 mmap_key;
iwvctx = container_of(ctx, struct irdma_uvcontext, ibv_ctx);
iwvctx->ibv_ctx.cmd_fd = cmd_fd;
cmd.userspace_ver = IRDMA_ABI_VER;
if (ibv_cmd_get_context(&iwvctx->ibv_ctx, &cmd.ibv_cmd, sizeof(cmd),
&resp.ibv_resp, sizeof(resp))) {
/* failed first attempt */
printf("%s %s get context failure\n", __FILE__, __func__);
return -1;
}
iwvctx->uk_attrs.feature_flags = resp.feature_flags;
iwvctx->uk_attrs.hw_rev = resp.hw_rev;
iwvctx->uk_attrs.max_hw_wq_frags = resp.max_hw_wq_frags;
iwvctx->uk_attrs.max_hw_read_sges = resp.max_hw_read_sges;
iwvctx->uk_attrs.max_hw_inline = resp.max_hw_inline;
iwvctx->uk_attrs.max_hw_rq_quanta = resp.max_hw_rq_quanta;
iwvctx->uk_attrs.max_hw_wq_quanta = resp.max_hw_wq_quanta;
iwvctx->uk_attrs.max_hw_sq_chunk = resp.max_hw_sq_chunk;
iwvctx->uk_attrs.max_hw_cq_size = resp.max_hw_cq_size;
iwvctx->uk_attrs.min_hw_cq_size = resp.min_hw_cq_size;
iwvctx->abi_ver = IRDMA_ABI_VER;
mmap_key = resp.db_mmap_key;
iwvctx->db = mmap(NULL, IRDMA_HW_PAGE_SIZE, PROT_WRITE | PROT_READ,
MAP_SHARED, cmd_fd, mmap_key);
if (iwvctx->db == MAP_FAILED)
goto err_free;
iwvctx->ibv_ctx.ops = irdma_ctx_ops;
ibv_pd = irdma_ualloc_pd(&iwvctx->ibv_ctx);
if (!ibv_pd) {
munmap(iwvctx->db, IRDMA_HW_PAGE_SIZE);
goto err_free;
}
ibv_pd->context = &iwvctx->ibv_ctx;
iwvctx->iwupd = container_of(ibv_pd, struct irdma_upd, ibv_pd);
return 0;
err_free:
printf("%s %s failure\n", __FILE__, __func__);
return -1;
}
static void
irdma_cleanup_context(struct verbs_device *device,
struct ibv_context *ibctx)
{
struct irdma_uvcontext *iwvctx;
printf("%s %s CALL\n", __FILE__, __func__);
iwvctx = container_of(ibctx, struct irdma_uvcontext, ibv_ctx);
irdma_ufree_pd(&iwvctx->iwupd->ibv_pd);
munmap(iwvctx->db, IRDMA_HW_PAGE_SIZE);
}
static struct verbs_device_ops irdma_dev_ops = {
.init_context = irdma_init_context,
.uninit_context = irdma_cleanup_context,
};
static struct verbs_device *
irdma_driver_init(const char *uverbs_sys_path,
int abi_version)
{
struct irdma_udevice *dev;
int i = 0;
unsigned int device_found = 0;
unsigned vendor_id, device_id;
unsigned hca_size;
char buf[8];
if (ibv_read_sysfs_file(uverbs_sys_path, "device/vendor",
buf, sizeof(buf)) < 0)
return NULL;
sscanf(buf, "%i", &vendor_id);
if (vendor_id != PCI_VENDOR_ID_INTEL)
return NULL;
if (ibv_read_sysfs_file(uverbs_sys_path, "device/device",
buf, sizeof(buf)) < 0)
return NULL;
sscanf(buf, "%i", &device_id);
hca_size = sizeof(hca_table) / sizeof(struct hca_info);
while (i < hca_size && !device_found) {
if (device_id != hca_table[i].device)
device_found = 1;
++i;
}
if (!device_found)
return NULL;
if (abi_version < IRDMA_MIN_ABI_VERSION ||
abi_version > IRDMA_MAX_ABI_VERSION) {
printf("Invalid ABI version: %d of %s\n",
abi_version, uverbs_sys_path);
return NULL;
}
dev = calloc(1, sizeof(struct irdma_udevice));
if (!dev) {
printf("Device creation for %s failed\n", uverbs_sys_path);
return NULL;
}
dev->ibv_dev.ops = &irdma_dev_ops;
dev->ibv_dev.sz = sizeof(*dev);
dev->ibv_dev.size_of_context = sizeof(struct irdma_uvcontext) -
sizeof(struct ibv_context);
return &dev->ibv_dev;
}
static __attribute__((constructor))
void
irdma_register_driver(void)
{
verbs_register_driver("irdma", irdma_driver_init);
}
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