diff options
Diffstat (limited to 'sys/dev/cxgbe/t4_sge.c')
| -rw-r--r-- | sys/dev/cxgbe/t4_sge.c | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/sys/dev/cxgbe/t4_sge.c b/sys/dev/cxgbe/t4_sge.c index 05f0779..5440528 100644 --- a/sys/dev/cxgbe/t4_sge.c +++ b/sys/dev/cxgbe/t4_sge.c @@ -142,6 +142,8 @@ static int handle_sge_egr_update(struct adapter *, static int ctrl_tx(struct adapter *, struct sge_ctrlq *, struct mbuf *); +extern void filter_rpl(struct adapter *, const struct cpl_set_tcb_rpl *); + /* * Called on MOD_LOAD and fills up fl_buf_info[]. */ @@ -499,11 +501,8 @@ t4_intr_fwd(void *arg) iq_next(iq); } - if (ndesc_total > 0) { - t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), - V_CIDXINC(ndesc_pending) | V_INGRESSQID((u32)iq->cntxt_id) | - V_SEINTARM(iq->intr_params)); - } + t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), V_CIDXINC(ndesc_pending) | + V_INGRESSQID((u32)iq->cntxt_id) | V_SEINTARM(iq->intr_params)); atomic_cmpset_32(&iq->state, IQS_BUSY, IQS_IDLE); } @@ -583,7 +582,9 @@ t4_evt_rx(void *arg) case CPL_SGE_EGR_UPDATE: handle_sge_egr_update(sc, (const void *)(rss + 1)); break; - + case CPL_SET_TCB_RPL: + filter_rpl(sc, (const void *) (rss + 1)); + break; default: device_printf(sc->dev, "can't handle CPL opcode %d.", rss->opcode); @@ -601,13 +602,16 @@ t4_evt_rx(void *arg) iq_next(iq); } - if (ndesc_total > 0) { - t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), - V_CIDXINC(ndesc_pending) | V_INGRESSQID(iq->cntxt_id) | - V_SEINTARM(iq->intr_params)); - } + t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), V_CIDXINC(ndesc_pending) | + V_INGRESSQID(iq->cntxt_id) | V_SEINTARM(iq->intr_params)); } +#ifdef T4_PKT_TIMESTAMP +#define RX_COPY_THRESHOLD (MINCLSIZE - 8) +#else +#define RX_COPY_THRESHOLD MINCLSIZE +#endif + void t4_eth_rx(void *arg) { @@ -671,7 +675,22 @@ t4_eth_rx(void *arg) BUS_DMASYNC_POSTREAD); m_init(m0, NULL, 0, M_NOWAIT, MT_DATA, M_PKTHDR); - if (len < MINCLSIZE) { + +#ifdef T4_PKT_TIMESTAMP + *mtod(m0, uint64_t *) = + be64toh(ctrl->u.last_flit & 0xfffffffffffffff); + m0->m_data += 8; + + /* + * 60 bit timestamp value is *(uint64_t *)m0->m_pktdat. Note + * that it is in the leading free-space (see M_LEADINGSPACE) in + * the mbuf. The kernel can clobber it during a pullup, + * m_copymdata, etc. You need to make sure that the mbuf + * reaches you unmolested if you care about the timestamp. + */ +#endif + + if (len < RX_COPY_THRESHOLD) { /* copy data to mbuf, buffer will be recycled */ bcopy(sd->cl, mtod(m0, caddr_t), len); m0->m_len = len; |
