387 lines
9.7 KiB
C
387 lines
9.7 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
|
||
|
|
* Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
* OpenIB.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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <net/addrconf.h>
|
||
|
|
#include "rxe.h"
|
||
|
|
#include "rxe_loc.h"
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Bob Pearson, Frank Zago, John Groves, Kamal Heib");
|
||
|
|
MODULE_DESCRIPTION("Soft RDMA transport");
|
||
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
||
|
|
|
||
|
|
/* free resources for all ports on a device */
|
||
|
|
static void rxe_cleanup_ports(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
kfree(rxe->port.pkey_tbl);
|
||
|
|
rxe->port.pkey_tbl = NULL;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* free resources for a rxe device all objects created for this device must
|
||
|
|
* have been destroyed
|
||
|
|
*/
|
||
|
|
static void rxe_cleanup(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
rxe_pool_cleanup(&rxe->uc_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->pd_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->ah_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->srq_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->qp_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->cq_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->mr_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->mw_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->mc_grp_pool);
|
||
|
|
rxe_pool_cleanup(&rxe->mc_elem_pool);
|
||
|
|
|
||
|
|
rxe_cleanup_ports(rxe);
|
||
|
|
|
||
|
|
crypto_free_shash(rxe->tfm);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* called when all references have been dropped */
|
||
|
|
void rxe_release(struct kref *kref)
|
||
|
|
{
|
||
|
|
struct rxe_dev *rxe = container_of(kref, struct rxe_dev, ref_cnt);
|
||
|
|
|
||
|
|
rxe_cleanup(rxe);
|
||
|
|
ib_dealloc_device(&rxe->ib_dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
void rxe_dev_put(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
kref_put(&rxe->ref_cnt, rxe_release);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(rxe_dev_put);
|
||
|
|
|
||
|
|
/* initialize rxe device parameters */
|
||
|
|
static int rxe_init_device_param(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
rxe->max_inline_data = RXE_MAX_INLINE_DATA;
|
||
|
|
|
||
|
|
rxe->attr.fw_ver = RXE_FW_VER;
|
||
|
|
rxe->attr.max_mr_size = RXE_MAX_MR_SIZE;
|
||
|
|
rxe->attr.page_size_cap = RXE_PAGE_SIZE_CAP;
|
||
|
|
rxe->attr.vendor_id = RXE_VENDOR_ID;
|
||
|
|
rxe->attr.vendor_part_id = RXE_VENDOR_PART_ID;
|
||
|
|
rxe->attr.hw_ver = RXE_HW_VER;
|
||
|
|
rxe->attr.max_qp = RXE_MAX_QP;
|
||
|
|
rxe->attr.max_qp_wr = RXE_MAX_QP_WR;
|
||
|
|
rxe->attr.device_cap_flags = RXE_DEVICE_CAP_FLAGS;
|
||
|
|
rxe->attr.max_sge = RXE_MAX_SGE;
|
||
|
|
rxe->attr.max_sge_rd = RXE_MAX_SGE_RD;
|
||
|
|
rxe->attr.max_cq = RXE_MAX_CQ;
|
||
|
|
rxe->attr.max_cqe = (1 << RXE_MAX_LOG_CQE) - 1;
|
||
|
|
rxe->attr.max_mr = RXE_MAX_MR;
|
||
|
|
rxe->attr.max_pd = RXE_MAX_PD;
|
||
|
|
rxe->attr.max_qp_rd_atom = RXE_MAX_QP_RD_ATOM;
|
||
|
|
rxe->attr.max_ee_rd_atom = RXE_MAX_EE_RD_ATOM;
|
||
|
|
rxe->attr.max_res_rd_atom = RXE_MAX_RES_RD_ATOM;
|
||
|
|
rxe->attr.max_qp_init_rd_atom = RXE_MAX_QP_INIT_RD_ATOM;
|
||
|
|
rxe->attr.max_ee_init_rd_atom = RXE_MAX_EE_INIT_RD_ATOM;
|
||
|
|
rxe->attr.atomic_cap = RXE_ATOMIC_CAP;
|
||
|
|
rxe->attr.max_ee = RXE_MAX_EE;
|
||
|
|
rxe->attr.max_rdd = RXE_MAX_RDD;
|
||
|
|
rxe->attr.max_mw = RXE_MAX_MW;
|
||
|
|
rxe->attr.max_raw_ipv6_qp = RXE_MAX_RAW_IPV6_QP;
|
||
|
|
rxe->attr.max_raw_ethy_qp = RXE_MAX_RAW_ETHY_QP;
|
||
|
|
rxe->attr.max_mcast_grp = RXE_MAX_MCAST_GRP;
|
||
|
|
rxe->attr.max_mcast_qp_attach = RXE_MAX_MCAST_QP_ATTACH;
|
||
|
|
rxe->attr.max_total_mcast_qp_attach = RXE_MAX_TOT_MCAST_QP_ATTACH;
|
||
|
|
rxe->attr.max_ah = RXE_MAX_AH;
|
||
|
|
rxe->attr.max_fmr = RXE_MAX_FMR;
|
||
|
|
rxe->attr.max_map_per_fmr = RXE_MAX_MAP_PER_FMR;
|
||
|
|
rxe->attr.max_srq = RXE_MAX_SRQ;
|
||
|
|
rxe->attr.max_srq_wr = RXE_MAX_SRQ_WR;
|
||
|
|
rxe->attr.max_srq_sge = RXE_MAX_SRQ_SGE;
|
||
|
|
rxe->attr.max_fast_reg_page_list_len = RXE_MAX_FMR_PAGE_LIST_LEN;
|
||
|
|
rxe->attr.max_pkeys = RXE_MAX_PKEYS;
|
||
|
|
rxe->attr.local_ca_ack_delay = RXE_LOCAL_CA_ACK_DELAY;
|
||
|
|
|
||
|
|
rxe->max_ucontext = RXE_MAX_UCONTEXT;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* initialize port attributes */
|
||
|
|
static int rxe_init_port_param(struct rxe_port *port)
|
||
|
|
{
|
||
|
|
port->attr.state = RXE_PORT_STATE;
|
||
|
|
port->attr.max_mtu = RXE_PORT_MAX_MTU;
|
||
|
|
port->attr.active_mtu = RXE_PORT_ACTIVE_MTU;
|
||
|
|
port->attr.gid_tbl_len = RXE_PORT_GID_TBL_LEN;
|
||
|
|
port->attr.port_cap_flags = RXE_PORT_PORT_CAP_FLAGS;
|
||
|
|
port->attr.max_msg_sz = RXE_PORT_MAX_MSG_SZ;
|
||
|
|
port->attr.bad_pkey_cntr = RXE_PORT_BAD_PKEY_CNTR;
|
||
|
|
port->attr.qkey_viol_cntr = RXE_PORT_QKEY_VIOL_CNTR;
|
||
|
|
port->attr.pkey_tbl_len = RXE_PORT_PKEY_TBL_LEN;
|
||
|
|
port->attr.lid = RXE_PORT_LID;
|
||
|
|
port->attr.sm_lid = RXE_PORT_SM_LID;
|
||
|
|
port->attr.lmc = RXE_PORT_LMC;
|
||
|
|
port->attr.max_vl_num = RXE_PORT_MAX_VL_NUM;
|
||
|
|
port->attr.sm_sl = RXE_PORT_SM_SL;
|
||
|
|
port->attr.subnet_timeout = RXE_PORT_SUBNET_TIMEOUT;
|
||
|
|
port->attr.init_type_reply = RXE_PORT_INIT_TYPE_REPLY;
|
||
|
|
port->attr.active_width = RXE_PORT_ACTIVE_WIDTH;
|
||
|
|
port->attr.active_speed = RXE_PORT_ACTIVE_SPEED;
|
||
|
|
port->attr.phys_state = RXE_PORT_PHYS_STATE;
|
||
|
|
port->mtu_cap =
|
||
|
|
ib_mtu_enum_to_int(RXE_PORT_ACTIVE_MTU);
|
||
|
|
port->subnet_prefix = cpu_to_be64(RXE_PORT_SUBNET_PREFIX);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* initialize port state, note IB convention that HCA ports are always
|
||
|
|
* numbered from 1
|
||
|
|
*/
|
||
|
|
static int rxe_init_ports(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
struct rxe_port *port = &rxe->port;
|
||
|
|
|
||
|
|
rxe_init_port_param(port);
|
||
|
|
|
||
|
|
if (!port->attr.pkey_tbl_len || !port->attr.gid_tbl_len)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
port->pkey_tbl = kcalloc(port->attr.pkey_tbl_len,
|
||
|
|
sizeof(*port->pkey_tbl), GFP_KERNEL);
|
||
|
|
|
||
|
|
if (!port->pkey_tbl)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
port->pkey_tbl[0] = 0xffff;
|
||
|
|
addrconf_addr_eui48((unsigned char *)&port->port_guid,
|
||
|
|
rxe->ndev->dev_addr);
|
||
|
|
|
||
|
|
spin_lock_init(&port->port_lock);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* init pools of managed objects */
|
||
|
|
static int rxe_init_pools(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->uc_pool, RXE_TYPE_UC,
|
||
|
|
rxe->max_ucontext);
|
||
|
|
if (err)
|
||
|
|
goto err1;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->pd_pool, RXE_TYPE_PD,
|
||
|
|
rxe->attr.max_pd);
|
||
|
|
if (err)
|
||
|
|
goto err2;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->ah_pool, RXE_TYPE_AH,
|
||
|
|
rxe->attr.max_ah);
|
||
|
|
if (err)
|
||
|
|
goto err3;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->srq_pool, RXE_TYPE_SRQ,
|
||
|
|
rxe->attr.max_srq);
|
||
|
|
if (err)
|
||
|
|
goto err4;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->qp_pool, RXE_TYPE_QP,
|
||
|
|
rxe->attr.max_qp);
|
||
|
|
if (err)
|
||
|
|
goto err5;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->cq_pool, RXE_TYPE_CQ,
|
||
|
|
rxe->attr.max_cq);
|
||
|
|
if (err)
|
||
|
|
goto err6;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->mr_pool, RXE_TYPE_MR,
|
||
|
|
rxe->attr.max_mr);
|
||
|
|
if (err)
|
||
|
|
goto err7;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->mw_pool, RXE_TYPE_MW,
|
||
|
|
rxe->attr.max_mw);
|
||
|
|
if (err)
|
||
|
|
goto err8;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->mc_grp_pool, RXE_TYPE_MC_GRP,
|
||
|
|
rxe->attr.max_mcast_grp);
|
||
|
|
if (err)
|
||
|
|
goto err9;
|
||
|
|
|
||
|
|
err = rxe_pool_init(rxe, &rxe->mc_elem_pool, RXE_TYPE_MC_ELEM,
|
||
|
|
rxe->attr.max_total_mcast_qp_attach);
|
||
|
|
if (err)
|
||
|
|
goto err10;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err10:
|
||
|
|
rxe_pool_cleanup(&rxe->mc_grp_pool);
|
||
|
|
err9:
|
||
|
|
rxe_pool_cleanup(&rxe->mw_pool);
|
||
|
|
err8:
|
||
|
|
rxe_pool_cleanup(&rxe->mr_pool);
|
||
|
|
err7:
|
||
|
|
rxe_pool_cleanup(&rxe->cq_pool);
|
||
|
|
err6:
|
||
|
|
rxe_pool_cleanup(&rxe->qp_pool);
|
||
|
|
err5:
|
||
|
|
rxe_pool_cleanup(&rxe->srq_pool);
|
||
|
|
err4:
|
||
|
|
rxe_pool_cleanup(&rxe->ah_pool);
|
||
|
|
err3:
|
||
|
|
rxe_pool_cleanup(&rxe->pd_pool);
|
||
|
|
err2:
|
||
|
|
rxe_pool_cleanup(&rxe->uc_pool);
|
||
|
|
err1:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* initialize rxe device state */
|
||
|
|
static int rxe_init(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
/* init default device parameters */
|
||
|
|
rxe_init_device_param(rxe);
|
||
|
|
|
||
|
|
err = rxe_init_ports(rxe);
|
||
|
|
if (err)
|
||
|
|
goto err1;
|
||
|
|
|
||
|
|
err = rxe_init_pools(rxe);
|
||
|
|
if (err)
|
||
|
|
goto err2;
|
||
|
|
|
||
|
|
/* init pending mmap list */
|
||
|
|
spin_lock_init(&rxe->mmap_offset_lock);
|
||
|
|
spin_lock_init(&rxe->pending_lock);
|
||
|
|
INIT_LIST_HEAD(&rxe->pending_mmaps);
|
||
|
|
INIT_LIST_HEAD(&rxe->list);
|
||
|
|
|
||
|
|
mutex_init(&rxe->usdev_lock);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err2:
|
||
|
|
rxe_cleanup_ports(rxe);
|
||
|
|
err1:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int rxe_set_mtu(struct rxe_dev *rxe, unsigned int ndev_mtu)
|
||
|
|
{
|
||
|
|
struct rxe_port *port = &rxe->port;
|
||
|
|
enum ib_mtu mtu;
|
||
|
|
|
||
|
|
mtu = eth_mtu_int_to_enum(ndev_mtu);
|
||
|
|
|
||
|
|
/* Make sure that new MTU in range */
|
||
|
|
mtu = mtu ? min_t(enum ib_mtu, mtu, RXE_PORT_MAX_MTU) : IB_MTU_256;
|
||
|
|
|
||
|
|
port->attr.active_mtu = mtu;
|
||
|
|
port->mtu_cap = ib_mtu_enum_to_int(mtu);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(rxe_set_mtu);
|
||
|
|
|
||
|
|
/* called by ifc layer to create new rxe device.
|
||
|
|
* The caller should allocate memory for rxe by calling ib_alloc_device.
|
||
|
|
*/
|
||
|
|
int rxe_add(struct rxe_dev *rxe, unsigned int mtu)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
kref_init(&rxe->ref_cnt);
|
||
|
|
|
||
|
|
err = rxe_init(rxe);
|
||
|
|
if (err)
|
||
|
|
goto err1;
|
||
|
|
|
||
|
|
err = rxe_set_mtu(rxe, mtu);
|
||
|
|
if (err)
|
||
|
|
goto err1;
|
||
|
|
|
||
|
|
err = rxe_register_device(rxe);
|
||
|
|
if (err)
|
||
|
|
goto err1;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err1:
|
||
|
|
rxe_dev_put(rxe);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(rxe_add);
|
||
|
|
|
||
|
|
/* called by the ifc layer to remove a device */
|
||
|
|
void rxe_remove(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
rxe_unregister_device(rxe);
|
||
|
|
|
||
|
|
rxe_dev_put(rxe);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(rxe_remove);
|
||
|
|
|
||
|
|
static int __init rxe_module_init(void)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
/* initialize slab caches for managed objects */
|
||
|
|
err = rxe_cache_init();
|
||
|
|
if (err) {
|
||
|
|
pr_err("unable to init object pools\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = rxe_net_init();
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
pr_info("loaded\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit rxe_module_exit(void)
|
||
|
|
{
|
||
|
|
rxe_remove_all();
|
||
|
|
rxe_net_exit();
|
||
|
|
rxe_cache_exit();
|
||
|
|
|
||
|
|
pr_info("unloaded\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
late_initcall(rxe_module_init);
|
||
|
|
module_exit(rxe_module_exit);
|