300 lines
8.7 KiB
C
300 lines
8.7 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.
|
|
*/
|
|
|
|
#ifndef RXE_LOC_H
|
|
#define RXE_LOC_H
|
|
|
|
/* rxe_av.c */
|
|
|
|
int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr);
|
|
|
|
int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num,
|
|
struct rxe_av *av, struct rdma_ah_attr *attr);
|
|
|
|
int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av,
|
|
struct rdma_ah_attr *attr);
|
|
|
|
int rxe_av_fill_ip_info(struct rxe_dev *rxe,
|
|
struct rxe_av *av,
|
|
struct rdma_ah_attr *attr,
|
|
struct ib_gid_attr *sgid_attr,
|
|
union ib_gid *sgid);
|
|
|
|
struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt);
|
|
|
|
/* rxe_cq.c */
|
|
int rxe_cq_chk_attr(struct rxe_dev *rxe, struct rxe_cq *cq,
|
|
int cqe, int comp_vector, struct ib_udata *udata);
|
|
|
|
int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
|
|
int comp_vector, struct ib_ucontext *context,
|
|
struct ib_udata *udata);
|
|
|
|
int rxe_cq_resize_queue(struct rxe_cq *cq, int new_cqe, struct ib_udata *udata);
|
|
|
|
int rxe_cq_post(struct rxe_cq *cq, struct rxe_cqe *cqe, int solicited);
|
|
|
|
void rxe_cq_disable(struct rxe_cq *cq);
|
|
|
|
void rxe_cq_cleanup(struct rxe_pool_entry *arg);
|
|
|
|
/* rxe_mcast.c */
|
|
int rxe_mcast_get_grp(struct rxe_dev *rxe, union ib_gid *mgid,
|
|
struct rxe_mc_grp **grp_p);
|
|
|
|
int rxe_mcast_add_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp,
|
|
struct rxe_mc_grp *grp);
|
|
|
|
int rxe_mcast_drop_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp,
|
|
union ib_gid *mgid);
|
|
|
|
void rxe_drop_all_mcast_groups(struct rxe_qp *qp);
|
|
|
|
void rxe_mc_cleanup(struct rxe_pool_entry *arg);
|
|
|
|
/* rxe_mmap.c */
|
|
struct rxe_mmap_info {
|
|
struct list_head pending_mmaps;
|
|
struct ib_ucontext *context;
|
|
struct kref ref;
|
|
void *obj;
|
|
|
|
struct mminfo info;
|
|
};
|
|
|
|
void rxe_mmap_release(struct kref *ref);
|
|
|
|
struct rxe_mmap_info *rxe_create_mmap_info(struct rxe_dev *dev,
|
|
u32 size,
|
|
struct ib_ucontext *context,
|
|
void *obj);
|
|
|
|
int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
|
|
|
|
/* rxe_mr.c */
|
|
enum copy_direction {
|
|
to_mem_obj,
|
|
from_mem_obj,
|
|
};
|
|
|
|
int rxe_mem_init_dma(struct rxe_dev *rxe, struct rxe_pd *pd,
|
|
int access, struct rxe_mem *mem);
|
|
|
|
int rxe_mem_init_user(struct rxe_dev *rxe, struct rxe_pd *pd, u64 start,
|
|
u64 length, u64 iova, int access, struct ib_udata *udata,
|
|
struct rxe_mem *mr);
|
|
|
|
int rxe_mem_init_fast(struct rxe_dev *rxe, struct rxe_pd *pd,
|
|
int max_pages, struct rxe_mem *mem);
|
|
|
|
int rxe_mem_copy(struct rxe_mem *mem, u64 iova, void *addr,
|
|
int length, enum copy_direction dir, u32 *crcp);
|
|
|
|
int copy_data(struct rxe_dev *rxe, struct rxe_pd *pd, int access,
|
|
struct rxe_dma_info *dma, void *addr, int length,
|
|
enum copy_direction dir, u32 *crcp);
|
|
|
|
void *iova_to_vaddr(struct rxe_mem *mem, u64 iova, int length);
|
|
|
|
enum lookup_type {
|
|
lookup_local,
|
|
lookup_remote,
|
|
};
|
|
|
|
struct rxe_mem *lookup_mem(struct rxe_pd *pd, int access, u32 key,
|
|
enum lookup_type type);
|
|
|
|
int mem_check_range(struct rxe_mem *mem, u64 iova, size_t length);
|
|
|
|
int rxe_mem_map_pages(struct rxe_dev *rxe, struct rxe_mem *mem,
|
|
u64 *page, int num_pages, u64 iova);
|
|
|
|
void rxe_mem_cleanup(struct rxe_pool_entry *arg);
|
|
|
|
int advance_dma_data(struct rxe_dma_info *dma, unsigned int length);
|
|
|
|
/* rxe_net.c */
|
|
int rxe_loopback(struct sk_buff *skb);
|
|
int rxe_send(struct rxe_dev *rxe, struct rxe_pkt_info *pkt,
|
|
struct sk_buff *skb);
|
|
struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av,
|
|
int paylen, struct rxe_pkt_info *pkt);
|
|
int rxe_prepare(struct rxe_dev *rxe, struct rxe_pkt_info *pkt,
|
|
struct sk_buff *skb, u32 *crc);
|
|
enum rdma_link_layer rxe_link_layer(struct rxe_dev *rxe, unsigned int port_num);
|
|
const char *rxe_parent_name(struct rxe_dev *rxe, unsigned int port_num);
|
|
struct device *rxe_dma_device(struct rxe_dev *rxe);
|
|
int rxe_mcast_add(struct rxe_dev *rxe, union ib_gid *mgid);
|
|
int rxe_mcast_delete(struct rxe_dev *rxe, union ib_gid *mgid);
|
|
|
|
/* rxe_qp.c */
|
|
int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init);
|
|
|
|
int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
|
|
struct ib_qp_init_attr *init, struct ib_udata *udata,
|
|
struct ib_pd *ibpd);
|
|
|
|
int rxe_qp_to_init(struct rxe_qp *qp, struct ib_qp_init_attr *init);
|
|
|
|
int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp,
|
|
struct ib_qp_attr *attr, int mask);
|
|
|
|
int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr,
|
|
int mask, struct ib_udata *udata);
|
|
|
|
int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask);
|
|
|
|
void rxe_qp_error(struct rxe_qp *qp);
|
|
|
|
void rxe_qp_destroy(struct rxe_qp *qp);
|
|
|
|
void rxe_qp_cleanup(struct rxe_pool_entry *arg);
|
|
|
|
static inline int qp_num(struct rxe_qp *qp)
|
|
{
|
|
return qp->ibqp.qp_num;
|
|
}
|
|
|
|
static inline enum ib_qp_type qp_type(struct rxe_qp *qp)
|
|
{
|
|
return qp->ibqp.qp_type;
|
|
}
|
|
|
|
static inline enum ib_qp_state qp_state(struct rxe_qp *qp)
|
|
{
|
|
return qp->attr.qp_state;
|
|
}
|
|
|
|
static inline int qp_mtu(struct rxe_qp *qp)
|
|
{
|
|
if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC)
|
|
return qp->attr.path_mtu;
|
|
else
|
|
return RXE_PORT_MAX_MTU;
|
|
}
|
|
|
|
static inline int rcv_wqe_size(int max_sge)
|
|
{
|
|
return sizeof(struct rxe_recv_wqe) +
|
|
max_sge * sizeof(struct ib_sge);
|
|
}
|
|
|
|
void free_rd_atomic_resource(struct rxe_qp *qp, struct resp_res *res);
|
|
|
|
static inline void rxe_advance_resp_resource(struct rxe_qp *qp)
|
|
{
|
|
qp->resp.res_head++;
|
|
if (unlikely(qp->resp.res_head == qp->attr.max_dest_rd_atomic))
|
|
qp->resp.res_head = 0;
|
|
}
|
|
|
|
void retransmit_timer(struct timer_list *t);
|
|
void rnr_nak_timer(struct timer_list *t);
|
|
|
|
/* rxe_srq.c */
|
|
#define IB_SRQ_INIT_MASK (~IB_SRQ_LIMIT)
|
|
|
|
int rxe_srq_chk_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
|
|
struct ib_srq_attr *attr, enum ib_srq_attr_mask mask);
|
|
|
|
int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
|
|
struct ib_srq_init_attr *init,
|
|
struct ib_ucontext *context, struct ib_udata *udata);
|
|
|
|
int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
|
|
struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
|
|
struct ib_udata *udata);
|
|
|
|
void rxe_release(struct kref *kref);
|
|
|
|
void rxe_drain_req_pkts(struct rxe_qp *qp, bool notify);
|
|
int rxe_completer(void *arg);
|
|
int rxe_requester(void *arg);
|
|
int rxe_responder(void *arg);
|
|
|
|
u32 rxe_icrc_hdr(struct rxe_pkt_info *pkt, struct sk_buff *skb);
|
|
|
|
void rxe_resp_queue_pkt(struct rxe_dev *rxe,
|
|
struct rxe_qp *qp, struct sk_buff *skb);
|
|
|
|
void rxe_comp_queue_pkt(struct rxe_dev *rxe,
|
|
struct rxe_qp *qp, struct sk_buff *skb);
|
|
|
|
static inline unsigned int wr_opcode_mask(int opcode, struct rxe_qp *qp)
|
|
{
|
|
return rxe_wr_opcode_info[opcode].mask[qp->ibqp.qp_type];
|
|
}
|
|
|
|
static inline int rxe_xmit_packet(struct rxe_dev *rxe, struct rxe_qp *qp,
|
|
struct rxe_pkt_info *pkt, struct sk_buff *skb)
|
|
{
|
|
int err;
|
|
int is_request = pkt->mask & RXE_REQ_MASK;
|
|
|
|
if ((is_request && (qp->req.state != QP_STATE_READY)) ||
|
|
(!is_request && (qp->resp.state != QP_STATE_READY))) {
|
|
pr_info("Packet dropped. QP is not in ready state\n");
|
|
goto drop;
|
|
}
|
|
|
|
if (pkt->mask & RXE_LOOPBACK_MASK) {
|
|
memcpy(SKB_TO_PKT(skb), pkt, sizeof(*pkt));
|
|
err = rxe_loopback(skb);
|
|
} else {
|
|
err = rxe_send(rxe, pkt, skb);
|
|
}
|
|
|
|
if (err) {
|
|
rxe->xmit_errors++;
|
|
rxe_counter_inc(rxe, RXE_CNT_SEND_ERR);
|
|
return err;
|
|
}
|
|
|
|
if ((qp_type(qp) != IB_QPT_RC) &&
|
|
(pkt->mask & RXE_END_MASK)) {
|
|
pkt->wqe->state = wqe_state_done;
|
|
rxe_run_task(&qp->comp.task, 1);
|
|
}
|
|
|
|
rxe_counter_inc(rxe, RXE_CNT_SENT_PKTS);
|
|
goto done;
|
|
|
|
drop:
|
|
kfree_skb(skb);
|
|
err = 0;
|
|
done:
|
|
return err;
|
|
}
|
|
|
|
#endif /* RXE_LOC_H */
|