38#include <linux/list.h>
39#include <linux/spinlock.h>
41#include <linux/completion.h>
42#include <linux/sched.h>
44#include <linux/dma-mapping.h>
45#include <linux/wait.h>
46#include <linux/kref.h>
47#include <linux/timer.h>
51#include <asm/byteorder.h>
53#include <netinet/in.h>
54#include <netinet/toecore.h>
56#include <rdma/ib_verbs.h>
57#include <rdma/iw_cm.h>
58#include <rdma/uverbs_ioctl.h>
66#define DRV_NAME "iw_cxgbe"
67#define MOD DRV_NAME ":"
68#define KTR_IW_CXGBE KTR_SPARE3
74#define PDBG(fmt, args...) \
77 printf(MOD fmt, ## args); \
82static inline void *
cplhdr(
struct mbuf *m)
84 return mtod(m,
void*);
87#define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->adap->vres.pbl.start)
88#define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->adap->vres.rq.start)
90#define C4IW_ID_TABLE_F_RANDOM 1
91#define C4IW_ID_TABLE_F_EMPTY 2
92#define C4IW_MAX_PAGE_SIZE 0x8000000
190#define C4IW_WR_TO (60*HZ)
211 u32 hwtid,
u32 qpid,
struct socket *so,
const char *func)
217 struct timeval t1, t2;
220 wr_waitp->
ret = -EIO;
229 if (so && so->so_error) {
230 wr_waitp->
ret = -ECONNRESET;
231 CTR5(
KTR_IW_CXGBE,
"%s - Connection ERROR %u for sock %p"
232 "tid %u qpid %u", func,
233 so->so_error, so, hwtid, qpid);
237 ret = wait_for_completion_timeout(&wr_waitp->
completion, to);
240 timevalsub(&t2, &t1);
241 printf(
"%s - Device %s not responding after %ld.%06ld "
242 "seconds - tid %u qpid %u\n", func,
243 device_get_nameunit(sc->
dev), t2.tv_sec, t2.tv_usec,
246 wr_waitp->
ret = -EIO;
257 timevalsub(&t2, &t1);
258 printf(
"%s - Device %s reply after %ld.%06ld seconds - "
259 "tid %u qpid %u\n", func, device_get_nameunit(sc->
dev),
260 t2.tv_sec, t2.tv_usec, hwtid, qpid);
263 CTR4(
KTR_IW_CXGBE,
"%p: FW reply %d tid %u qpid %u", sc,
264 wr_waitp->
ret, hwtid, qpid);
265 return (wr_waitp->
ret);
307 void *handle,
u32 id,
int lock)
313 if (!idr_pre_get(idr, lock ? GFP_KERNEL : GFP_ATOMIC))
317 ret = idr_get_new_above(idr, handle,
id, &newid);
318 BUG_ON(!ret && newid !=
id);
321 }
while (ret == -EAGAIN);
327 void *handle,
u32 id)
333 void *handle,
u32 id)
354 struct idr *idr,
u32 id)
530 struct list_head *pos, *nxt;
534 list_for_each_safe(pos, nxt, &ucontext->
mmaps) {
538 list_del_init(&mm->
entry);
541 __func__,
key, (
unsigned long long) mm->
addr,
554 CTR4(
KTR_IW_CXGBE,
"%s key 0x%x addr 0x%llx len %d", __func__, mm->
key,
555 (
unsigned long long) mm->
addr, mm->
len);
602#define C4IW_EVENT_SOCKET 0x0001
603#define C4IW_EVENT_TIMEOUT 0x0002
604#define C4IW_EVENT_TERM 0x0004
642#define C4IW_DRAIN_OPCODE FW_RI_SGE_EC_CR_RETURN
663#define C4IW_NODE_DESC "iw_cxgbe Chelsio Communications"
665#define MPA_KEY_REQ "MPA ID Req Frame"
666#define MPA_KEY_REP "MPA ID Rep Frame"
668#define MPA_MAX_PRIVATE_DATA 256
669#define MPA_ENHANCED_RDMA_CONN 0x10
670#define MPA_REJECT 0x20
672#define MPA_MARKERS 0x80
673#define MPA_FLAGS_MASK 0xE0
675#define MPA_V2_PEER2PEER_MODEL 0x8000
676#define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
677#define MPA_V2_RDMA_WRITE_RTR 0x8000
678#define MPA_V2_RDMA_READ_RTR 0x4000
679#define MPA_V2_IRD_ORD_MASK 0x3FFF
681#define c4iw_put_ep(ep) { \
682 CTR4(KTR_IW_CXGBE, "put_ep (%s:%u) ep %p, refcnt %d", \
683 __func__, __LINE__, ep, atomic_read(&(ep)->kref.refcount)); \
684 WARN_ON(atomic_read(&(ep)->kref.refcount) < 1); \
685 kref_put(&((ep)->kref), _c4iw_free_ep); \
688#define c4iw_get_ep(ep) { \
689 CTR4(KTR_IW_CXGBE, "get_ep (%s:%u) ep %p, refcnt %d", \
690 __func__, __LINE__, ep, atomic_read(&(ep)->kref.refcount)); \
691 kref_get(&((ep)->kref)); \
716#define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
880 return cm_id->provider_data;
885 return cm_id->provider_data;
892 while (wscale < 14 && (65535<<wscale) < win)
925int c4iw_poll_cq(
struct ib_cq *ibcq,
int num_entries,
struct ib_wc *wc);
927 const struct ib_send_wr **bad_wr);
929 const struct ib_recv_wr **bad_wr);
930int c4iw_connect(
struct iw_cm_id *cm_id,
struct iw_cm_conn_param *conn_param);
938 u32 max_num_sg,
struct ib_udata *udata);
940 int sg_nents,
unsigned int *sg_offset);
943 struct ib_udata *udata);
945 virt,
int acc,
struct ib_udata *udata);
951 const struct ib_cq_init_attr *attr,
952 struct ib_udata *udata);
954int c4iw_arm_cq(
struct ib_cq *ibcq,
enum ib_cq_notify_flags flags);
957 struct ib_qp_init_attr *attrs,
958 struct ib_udata *udata);
960 int attr_mask,
struct ib_udata *udata);
962 int attr_mask,
struct ib_qp_init_attr *init_attr);
struct ib_mr * c4iw_get_dma_mr(struct ib_pd *pd, int acc)
int c4iw_dealloc_mw(struct ib_mw *mw)
int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_qp_init_attr *init_attr)
static int c4iw_wait_for_reply(struct c4iw_rdev *rdev, struct c4iw_wr_wait *wr_waitp, u32 hwtid, u32 qpid, struct socket *so, const char *func)
struct ib_mr * c4iw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, u32 max_num_sg, struct ib_udata *udata)
static u32 c4iw_ib_to_tpt_access(int a)
int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev)
int c4iw_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, const struct ib_send_wr **bad_wr)
int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
static struct c4iw_mr * get_mhp(struct c4iw_dev *rhp, u32 mmid)
struct ib_mr * c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, int acc, struct ib_udata *udata)
static void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
static int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr, void *handle, u32 id)
int c4iw_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
void c4iw_destroy_resource(struct c4iw_resource *rscp)
static struct c4iw_qp * to_c4iw_qp(struct ib_qp *ibqp)
int c4iw_rqtpool_create(struct c4iw_rdev *rdev)
int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid)
static int to_ib_qp_state(int c4iw_qp_state)
static void _remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id, int lock)
void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count)
static int _insert_handle(struct c4iw_dev *rhp, struct idr *idr, void *handle, u32 id, int lock)
void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj)
static struct c4iw_listen_ep * to_listen_ep(struct iw_cm_id *cm_id)
int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp, enum c4iw_qp_attr_mask mask, struct c4iw_qp_attributes *attrs, int internal)
static struct c4iw_ep * to_ep(struct iw_cm_id *cm_id)
static int cur_max_read_depth(struct c4iw_dev *dev)
int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count)
void c4iw_id_table_free(struct c4iw_id_table *alloc)
struct ib_qp * c4iw_get_qp(struct ib_device *dev, int qpn)
static struct c4iw_mm_entry * remove_mmap(struct c4iw_ucontext *ucontext, u32 key, unsigned len)
u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size)
static void insert_mmap(struct c4iw_ucontext *ucontext, struct c4iw_mm_entry *mm)
static struct c4iw_qp * get_qhp(struct c4iw_dev *rhp, u32 qpid)
static struct c4iw_mw * to_c4iw_mw(struct ib_mw *ibmw)
void c4iw_flush_hw_cq(struct c4iw_cq *cq)
void c4iw_pblpool_destroy(struct c4iw_rdev *rdev)
int c4iw_register_device(struct c4iw_dev *dev)
static struct c4iw_cq * get_chp(struct c4iw_dev *rhp, u32 cqid)
int c4iw_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr, const struct ib_recv_wr **bad_wr)
int c4iw_ev_handler(struct sge_iq *, const struct rsp_ctrl *)
int(* c4iw_handler_func)(struct c4iw_dev *dev, struct mbuf *m)
int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
@ T4_STATUS_PAGE_DISABLED
int c4iw_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata)
#define MPA_MAX_PRIVATE_DATA
struct ib_qp * c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs, struct ib_udata *udata)
u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size)
void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev)
static int c4iw_convert_state(enum ib_qp_state ib_state)
static void * cplhdr(struct mbuf *m)
static struct c4iw_cq * to_c4iw_cq(struct ib_cq *ibcq)
int __init c4iw_cm_init(void)
int c4iw_ofld_send(struct c4iw_rdev *rdev, struct mbuf *m)
@ C4IW_STAG_STATE_INVALID
static void remove_handle_nolock(struct c4iw_dev *rhp, struct idr *idr, u32 id)
int __c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp)
int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev)
u32 c4iw_get_resource(struct c4iw_id_table *id_table)
void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size)
static struct c4iw_mr * to_c4iw_mr(struct ib_mr *ibmr)
static struct c4iw_dev * to_c4iw_dev(struct ib_device *ibdev)
static int c4iw_fatal_error(struct c4iw_rdev *rdev)
static int insert_handle(struct c4iw_dev *rhp, struct idr *idr, void *handle, u32 id)
void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid, struct c4iw_dev_ucontext *uctx)
u16 c4iw_rqes_posted(struct c4iw_qp *qhp)
u32 c4iw_id_alloc(struct c4iw_id_table *alloc)
int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num, u32 reserved, u32 flags)
void c4iw_qp_rem_ref(struct ib_qp *qp)
static int compute_wscale(int win)
void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey)
int c4iw_destroy_listen(struct iw_cm_id *cm_id)
int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata)
static void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size)
@ C4IW_QP_STATE_TERMINATE
void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid, struct c4iw_dev_ucontext *uctx)
void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
static int t4_max_fr_depth(struct c4iw_rdev *rdev, bool use_dsgl)
struct ib_mw * c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, struct ib_udata *udata)
void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
int c4iw_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, struct ib_udata *udata)
static int c4iw_num_stags(struct c4iw_rdev *rdev)
static struct c4iw_pd * to_c4iw_pd(struct ib_pd *ibpd)
void c4iw_unregister_device(struct c4iw_dev *dev)
@ C4IW_QP_ATTR_ENABLE_RDMA_BIND
@ C4IW_QP_ATTR_ENABLE_RDMA_READ
@ C4IW_QP_ATTR_NEXT_STATE
@ C4IW_QP_ATTR_ENABLE_RDMA_WRITE
@ C4IW_QP_ATTR_STREAM_MSG_BUFFER
@ C4IW_QP_ATTR_VALID_MODIFY
@ C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE
@ C4IW_QP_ATTR_LLP_STREAM_HANDLE
int c4iw_flush_sq(struct c4iw_qp *qhp)
static u32 c4iw_ib_to_tpt_bind_access(int acc)
static void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
void __exit c4iw_cm_term(void)
static struct c4iw_ucontext * to_c4iw_ucontext(struct ib_ucontext *c)
int c4iw_pblpool_create(struct c4iw_rdev *rdev)
int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset)
int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe)
u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
void c4iw_qp_add_ref(struct ib_qp *qp)
static struct c4iw_dev * rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
void c4iw_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new, struct l2t_entry *l2t)
void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry)
int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp)
void _c4iw_free_ep(struct kref *kref)
#define container_of(p, s, f)
unsigned int max_ordird_qp
struct adapter_params params
spinlock_t comp_handler_lock
struct dentry * debugfs_root
TAILQ_ENTRY(c4iw_ep_common) entry
struct sockaddr_storage local_addr
struct c4iw_wr_wait wr_wait
struct sockaddr_storage remote_addr
struct c4iw_mpa_attributes mpa_attr
u8 mpa_pkt[sizeof(struct mpa_message)+MPA_MAX_PRIVATE_DATA]
struct c4iw_listen_ep * parent_ep
struct c4iw_ep_common com
struct c4iw_ep_common com
struct list_head listen_ep_list
struct tpt_attributes attr
struct tpt_attributes attr
u32 sq_max_sges_rdma_write
struct c4iw_mpa_attributes mpa_attr
char terminate_buffer[52]
struct c4iw_ep * llp_stream_handle
struct work_struct free_work
struct c4iw_qp_attributes attr
struct c4iw_ucontext * ucontext
struct c4iw_resource resource
struct t4_dev_status_page * status_page
struct c4iw_hw_queue hw_queue
struct workqueue_struct * free_workq
struct c4iw_dev_ucontext uctx
struct c4iw_id_table tpt_table
struct c4iw_id_table qid_table
struct c4iw_id_table pdid_table
struct c4iw_dev_ucontext uctx
struct ib_ucontext ibucontext
struct completion completion
u32 remote_invaliate_disable
enum fw_ri_mem_perms perms
#define T4_MAX_FR_FW_DSGL_DEPTH
#define T4_MAX_FR_IMMD_DEPTH
#define T4_MAX_FR_DSGL_DEPTH
@ FW_RI_MEM_ACCESS_REM_WRITE
@ FW_RI_MEM_ACCESS_REM_READ
@ FW_RI_MEM_ACCESS_LOCAL_WRITE
@ FW_RI_MEM_ACCESS_LOCAL_READ