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authorLuca Boccassi <luca.boccassi@gmail.com>2018-08-14 18:52:30 +0100
committerLuca Boccassi <luca.boccassi@gmail.com>2018-08-14 18:53:17 +0100
commitb63264c8342e6a1b6971c79550d2af2024b6a4de (patch)
tree83114aac64286fe616506c0b3dfaec2ab86ef835 /drivers/net/sfc/base/ef10_ev.c
parentca33590b6af032bff57d9cc70455660466a654b2 (diff)
New upstream version 18.08upstream/18.08
Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/sfc/base/ef10_ev.c')
-rw-r--r--drivers/net/sfc/base/ef10_ev.c112
1 files changed, 85 insertions, 27 deletions
diff --git a/drivers/net/sfc/base/ef10_ev.c b/drivers/net/sfc/base/ef10_ev.c
index 05700c5c..7f89a7bf 100644
--- a/drivers/net/sfc/base/ef10_ev.c
+++ b/drivers/net/sfc/base/ef10_ev.c
@@ -10,7 +10,7 @@
#include "mcdi_mon.h"
#endif
-#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
#if EFSYS_OPT_QSTATS
#define EFX_EV_QSTAT_INCR(_eep, _stat) \
@@ -549,7 +549,8 @@ ef10_ev_qdestroy(
efx_nic_t *enp = eep->ee_enp;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
- enp->en_family == EFX_FAMILY_MEDFORD);
+ enp->en_family == EFX_FAMILY_MEDFORD ||
+ enp->en_family == EFX_FAMILY_MEDFORD2);
(void) efx_mcdi_fini_evq(enp, eep->ee_index);
}
@@ -576,7 +577,7 @@ ef10_ev_qprime(
EFE_DD_EVQ_IND_RPTR_FLAGS_HIGH,
ERF_DD_EVQ_IND_RPTR,
(rptr >> ERF_DD_EVQ_IND_RPTR_WIDTH));
- EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
+ EFX_BAR_VI_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
&dword, B_FALSE);
EFX_POPULATE_DWORD_2(dword,
@@ -584,11 +585,11 @@ ef10_ev_qprime(
EFE_DD_EVQ_IND_RPTR_FLAGS_LOW,
ERF_DD_EVQ_IND_RPTR,
rptr & ((1 << ERF_DD_EVQ_IND_RPTR_WIDTH) - 1));
- EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
+ EFX_BAR_VI_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
&dword, B_FALSE);
} else {
EFX_POPULATE_DWORD_1(dword, ERF_DZ_EVQ_RPTR, rptr);
- EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_RPTR_REG, eep->ee_index,
+ EFX_BAR_VI_WRITED(enp, ER_DZ_EVQ_RPTR_REG, eep->ee_index,
&dword, B_FALSE);
}
@@ -701,13 +702,19 @@ ef10_ev_qmoderate(
EFE_DD_EVQ_IND_TIMER_FLAGS,
ERF_DD_EVQ_IND_TIMER_MODE, mode,
ERF_DD_EVQ_IND_TIMER_VAL, ticks);
- EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT,
+ EFX_BAR_VI_WRITED(enp, ER_DD_EVQ_INDIRECT,
eep->ee_index, &dword, 0);
} else {
- EFX_POPULATE_DWORD_2(dword,
+ /*
+ * NOTE: The TMR_REL field introduced in Medford2 is
+ * ignored on earlier EF10 controllers. See bug66418
+ * comment 9 for details.
+ */
+ EFX_POPULATE_DWORD_3(dword,
ERF_DZ_TC_TIMER_MODE, mode,
- ERF_DZ_TC_TIMER_VAL, ticks);
- EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_TMR_REG,
+ ERF_DZ_TC_TIMER_VAL, ticks,
+ ERF_FZ_TC_TMR_REL_VAL, ticks);
+ EFX_BAR_VI_WRITED(enp, ER_DZ_EVQ_TMR_REG,
eep->ee_index, &dword, 0);
}
}
@@ -742,7 +749,7 @@ ef10_ev_qstats_update(
}
#endif /* EFSYS_OPT_QSTATS */
-#if EFSYS_OPT_RX_PACKED_STREAM
+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
static __checkReturn boolean_t
ef10_ev_rx_packed_stream(
@@ -781,14 +788,25 @@ ef10_ev_rx_packed_stream(
if (new_buffer) {
flags |= EFX_PKT_PACKED_STREAM_NEW_BUFFER;
+#if EFSYS_OPT_RX_PACKED_STREAM
+ /*
+ * If both packed stream and equal stride super-buffer
+ * modes are compiled in, in theory credits should be
+ * be maintained for packed stream only, but right now
+ * these modes are not distinguished in the event queue
+ * Rx queue state and it is OK to increment the counter
+ * regardless (it might be event cheaper than branching
+ * since neighbour structure member are updated as well).
+ */
eersp->eers_rx_packed_stream_credits++;
+#endif
eersp->eers_rx_read_ptr++;
}
current_id = eersp->eers_rx_read_ptr & eersp->eers_rx_mask;
/* Check for errors that invalidate checksum and L3/L4 fields */
- if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
- /* RX frame truncated (error flag is misnamed) */
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TRUNC_ERR) != 0) {
+ /* RX frame truncated */
EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
flags |= EFX_DISCARD;
goto deliver;
@@ -823,7 +841,7 @@ deliver:
return (should_abort);
}
-#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+#endif /* EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER */
static __checkReturn boolean_t
ef10_ev_rx(
@@ -857,7 +875,7 @@ ef10_ev_rx(
label = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_QLABEL);
eersp = &eep->ee_rxq_state[label];
-#if EFSYS_OPT_RX_PACKED_STREAM
+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
/*
* Packed stream events are very different,
* so handle them separately
@@ -867,12 +885,23 @@ ef10_ev_rx(
#endif
size = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_BYTES);
+ cont = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_CONT);
next_read_lbits = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DSC_PTR_LBITS);
eth_tag_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ETH_TAG_CLASS);
mac_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_MAC_CLASS);
l3_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L3_CLASS);
- l4_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L4_CLASS);
- cont = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_CONT);
+
+ /*
+ * RX_L4_CLASS is 3 bits wide on Huntington and Medford, but is only
+ * 2 bits wide on Medford2. Check it is safe to use the Medford2 field
+ * and values for all EF10 controllers.
+ */
+ EFX_STATIC_ASSERT(ESF_FZ_RX_L4_CLASS_LBN == ESF_DE_RX_L4_CLASS_LBN);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_TCP == ESE_DE_L4_CLASS_TCP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UDP == ESE_DE_L4_CLASS_UDP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UNKNOWN == ESE_DE_L4_CLASS_UNKNOWN);
+
+ l4_class = EFX_QWORD_FIELD(*eqp, ESF_FZ_RX_L4_CLASS);
if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DROP_EVENT) != 0) {
/* Drop this event */
@@ -914,8 +943,8 @@ ef10_ev_rx(
last_used_id = (eersp->eers_rx_read_ptr - 1) & eersp->eers_rx_mask;
/* Check for errors that invalidate checksum and L3/L4 fields */
- if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
- /* RX frame truncated (error flag is misnamed) */
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TRUNC_ERR) != 0) {
+ /* RX frame truncated */
EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
flags |= EFX_DISCARD;
goto deliver;
@@ -951,10 +980,22 @@ ef10_ev_rx(
flags |= EFX_CKSUM_IPV4;
}
- if (l4_class == ESE_DZ_L4_CLASS_TCP) {
+ /*
+ * RX_L4_CLASS is 3 bits wide on Huntington and Medford, but is
+ * only 2 bits wide on Medford2. Check it is safe to use the
+ * Medford2 field and values for all EF10 controllers.
+ */
+ EFX_STATIC_ASSERT(ESF_FZ_RX_L4_CLASS_LBN ==
+ ESF_DE_RX_L4_CLASS_LBN);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_TCP == ESE_DE_L4_CLASS_TCP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UDP == ESE_DE_L4_CLASS_UDP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UNKNOWN ==
+ ESE_DE_L4_CLASS_UNKNOWN);
+
+ if (l4_class == ESE_FZ_L4_CLASS_TCP) {
EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV4);
flags |= EFX_PKT_TCP;
- } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
+ } else if (l4_class == ESE_FZ_L4_CLASS_UDP) {
EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV4);
flags |= EFX_PKT_UDP;
} else {
@@ -966,10 +1007,22 @@ ef10_ev_rx(
case ESE_DZ_L3_CLASS_IP6_FRAG:
flags |= EFX_PKT_IPV6;
- if (l4_class == ESE_DZ_L4_CLASS_TCP) {
+ /*
+ * RX_L4_CLASS is 3 bits wide on Huntington and Medford, but is
+ * only 2 bits wide on Medford2. Check it is safe to use the
+ * Medford2 field and values for all EF10 controllers.
+ */
+ EFX_STATIC_ASSERT(ESF_FZ_RX_L4_CLASS_LBN ==
+ ESF_DE_RX_L4_CLASS_LBN);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_TCP == ESE_DE_L4_CLASS_TCP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UDP == ESE_DE_L4_CLASS_UDP);
+ EFX_STATIC_ASSERT(ESE_FZ_L4_CLASS_UNKNOWN ==
+ ESE_DE_L4_CLASS_UNKNOWN);
+
+ if (l4_class == ESE_FZ_L4_CLASS_TCP) {
EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV6);
flags |= EFX_PKT_TCP;
- } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
+ } else if (l4_class == ESE_FZ_L4_CLASS_UDP) {
EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV6);
flags |= EFX_PKT_UDP;
} else {
@@ -1322,8 +1375,9 @@ ef10_ev_rxlabel_init(
__in efx_rxq_type_t type)
{
efx_evq_rxq_state_t *eersp;
-#if EFSYS_OPT_RX_PACKED_STREAM
+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
boolean_t packed_stream = (type == EFX_RXQ_TYPE_PACKED_STREAM);
+ boolean_t es_super_buffer = (type == EFX_RXQ_TYPE_ES_SUPER_BUFFER);
#endif
_NOTE(ARGUNUSED(type))
@@ -1345,9 +1399,11 @@ ef10_ev_rxlabel_init(
eersp->eers_rx_read_ptr = 0;
#endif
eersp->eers_rx_mask = erp->er_mask;
-#if EFSYS_OPT_RX_PACKED_STREAM
+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
eersp->eers_rx_stream_npackets = 0;
- eersp->eers_rx_packed_stream = packed_stream;
+ eersp->eers_rx_packed_stream = packed_stream || es_super_buffer;
+#endif
+#if EFSYS_OPT_RX_PACKED_STREAM
if (packed_stream) {
eersp->eers_rx_packed_stream_credits = (eep->ee_mask + 1) /
EFX_DIV_ROUND_UP(EFX_RX_PACKED_STREAM_MEM_PER_CREDIT,
@@ -1381,11 +1437,13 @@ ef10_ev_rxlabel_fini(
eersp->eers_rx_read_ptr = 0;
eersp->eers_rx_mask = 0;
-#if EFSYS_OPT_RX_PACKED_STREAM
+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
eersp->eers_rx_stream_npackets = 0;
eersp->eers_rx_packed_stream = B_FALSE;
+#endif
+#if EFSYS_OPT_RX_PACKED_STREAM
eersp->eers_rx_packed_stream_credits = 0;
#endif
}
-#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */