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Add a routine (t4_set_tcb_field) to update arbitrary parts of a hardware

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TCB.  Filters are programmed by modifying the TCB too (via a different
routine) and the reply to any TCB update is delivered via a
CPL_SET_TCB_RPL.  Figure out whether the reply is for a filter-write or
something else and route it appropriately.

MFC after:	2 weeks
This commit is contained in:
np 2012-08-16 20:15:29 +00:00
parent 5c6e91c5dc
commit cb83c384b2
4 changed files with 60 additions and 5 deletions
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1
sys/dev/cxgbe/adapter.h
View File

@ -744,6 +744,7 @@ void t4_iterate(void (*)(struct adapter *, void *), void *);
int t4_register_cpl_handler(struct adapter *, int, cpl_handler_t);
int t4_register_an_handler(struct adapter *, an_handler_t);
int t4_register_fw_msg_handler(struct adapter *, int, fw_msg_handler_t);
int t4_filter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
/* t4_sge.c */
void t4_sge_modload(void);

8
sys/dev/cxgbe/t4_main.c
View File

@ -346,8 +346,6 @@ static int del_filter(struct adapter *, struct t4_filter *);
static void clear_filter(struct filter_entry *);
static int set_filter_wr(struct adapter *, int);
static int del_filter_wr(struct adapter *, int);
static int filter_rpl(struct sge_iq *, const struct rss_header *,
struct mbuf *);
static int get_sge_context(struct adapter *, struct t4_sge_context *);
static int read_card_mem(struct adapter *, struct t4_mem_range *);
#ifdef TCP_OFFLOAD
@ -465,7 +463,7 @@ t4_attach(device_t dev)
sc->cpl_handler[i] = cpl_not_handled;
for (i = 0; i < ARRAY_SIZE(sc->fw_msg_handler); i++)
sc->fw_msg_handler[i] = fw_msg_not_handled;
t4_register_cpl_handler(sc, CPL_SET_TCB_RPL, filter_rpl);
t4_register_cpl_handler(sc, CPL_SET_TCB_RPL, t4_filter_rpl);
/* Prepare the adapter for operation */
rc = -t4_prep_adapter(sc);
@ -5000,8 +4998,8 @@ del_filter_wr(struct adapter *sc, int fidx)
return (0);
}
static int
filter_rpl(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
int
t4_filter_rpl(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
{
struct adapter *sc = iq->adapter;
const struct cpl_set_tcb_rpl *rpl = (const void *)(rss + 1);

53
sys/dev/cxgbe/tom/t4_cpl_io.c
View File

@ -1262,6 +1262,51 @@ do_fw4_ack(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
return (0);
}
static int
do_set_tcb_rpl(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
{
struct adapter *sc = iq->adapter;
const struct cpl_set_tcb_rpl *cpl = (const void *)(rss + 1);
unsigned int tid = GET_TID(cpl);
#ifdef INVARIANTS
unsigned int opcode = G_CPL_OPCODE(be32toh(OPCODE_TID(cpl)));
#endif
KASSERT(opcode == CPL_SET_TCB_RPL,
("%s: unexpected opcode 0x%x", __func__, opcode));
KASSERT(m == NULL, ("%s: wasn't expecting payload", __func__));
if (tid >= sc->tids.ftid_base &&
tid < sc->tids.ftid_base + sc->tids.nftids)
return (t4_filter_rpl(iq, rss, m)); /* TCB is a filter */
CXGBE_UNIMPLEMENTED(__func__);
}
void
t4_set_tcb_field(struct adapter *sc, struct toepcb *toep, uint16_t word,
uint64_t mask, uint64_t val)
{
struct wrqe *wr;
struct cpl_set_tcb_field *req;
wr = alloc_wrqe(sizeof(*req), toep->ctrlq);
if (wr == NULL) {
/* XXX */
panic("%s: allocation failure.", __func__);
}
req = wrtod(wr);
INIT_TP_WR_MIT_CPL(req, CPL_SET_TCB_FIELD, toep->tid);
req->reply_ctrl = htobe16(V_NO_REPLY(1) |
V_QUEUENO(toep->ofld_rxq->iq.abs_id));
req->word_cookie = htobe16(V_WORD(word) | V_COOKIE(0));
req->mask = htobe64(mask);
req->val = htobe64(val);
t4_wrq_tx(sc, wr);
}
void
t4_init_cpl_io_handlers(struct adapter *sc)
{
@ -1272,5 +1317,13 @@ t4_init_cpl_io_handlers(struct adapter *sc)
t4_register_cpl_handler(sc, CPL_ABORT_RPL_RSS, do_abort_rpl);
t4_register_cpl_handler(sc, CPL_RX_DATA, do_rx_data);
t4_register_cpl_handler(sc, CPL_FW4_ACK, do_fw4_ack);
t4_register_cpl_handler(sc, CPL_SET_TCB_RPL, do_set_tcb_rpl);
}
void
t4_uninit_cpl_io_handlers(struct adapter *sc)
{
t4_register_cpl_handler(sc, CPL_SET_TCB_RPL, t4_filter_rpl);
}
#endif

3
sys/dev/cxgbe/tom/t4_tom.h
View File

@ -236,6 +236,7 @@ void t4_offload_socket(struct toedev *, void *, struct socket *);
/* t4_cpl_io.c */
void t4_init_cpl_io_handlers(struct adapter *);
void t4_uninit_cpl_io_handlers(struct adapter *);
void send_abort_rpl(struct adapter *, struct sge_wrq *, int , int);
void send_flowc_wr(struct toepcb *, struct flowc_tx_params *);
void send_reset(struct adapter *, struct toepcb *, uint32_t);
@ -244,5 +245,7 @@ void t4_rcvd(struct toedev *, struct tcpcb *);
int t4_tod_output(struct toedev *, struct tcpcb *);
int t4_send_fin(struct toedev *, struct tcpcb *);
int t4_send_rst(struct toedev *, struct tcpcb *);
void t4_set_tcb_field(struct adapter *, struct toepcb *, uint16_t, uint64_t,
uint64_t);
#endif