git: cfb3a1dee11c - stable/12 - ixgbe(4): Fix enabling/disabling and reconfiguration of queues
Kevin Bowling
kbowling at FreeBSD.org
Sun Oct 3 05:04:21 UTC 2021
The branch stable/12 has been updated by kbowling (ports committer):
URL: https://cgit.FreeBSD.org/src/commit/?id=cfb3a1dee11c776a6aedd1c8fb3f86f9b7240e9a
commit cfb3a1dee11c776a6aedd1c8fb3f86f9b7240e9a
Author: Eric Joyner <erj at FreeBSD.org>
AuthorDate: 2019-07-23 18:14:32 +0000
Commit: Kevin Bowling <kbowling at FreeBSD.org>
CommitDate: 2021-10-03 01:53:12 +0000
ixgbe(4): Fix enabling/disabling and reconfiguration of queues
- Wrong order of casting and bit shift caused that enabling and disabling
queues didn't work properly for queues number larger than 32. Use literals
with right suffix instead.
- TX ring tail address was not updated during reinitiailzation of TX
structures. It could block sending traffic.
- Also remove unused variables 'eims' and 'active_queues'.
Submitted by: Krzysztof Galazka <krzysztof.galazka at intel.com>
Reviewed by: erj@
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D20826
(cherry picked from commit 2dc2d580354e95491a033fa9e21c8ef0cbd9bc42)
---
sys/dev/ixgbe/if_ix.c | 10 +++++-----
sys/dev/ixgbe/if_ixv.c | 3 ---
sys/dev/ixgbe/ixgbe.h | 2 --
3 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/sys/dev/ixgbe/if_ix.c b/sys/dev/ixgbe/if_ix.c
index d69a8ef80ef6..fa52b58ac1bd 100644
--- a/sys/dev/ixgbe/if_ix.c
+++ b/sys/dev/ixgbe/if_ix.c
@@ -425,7 +425,6 @@ ixgbe_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
i);
txr->sc = que->sc = sc;
- sc->active_queues |= (u64)1 << txr->me;
/* Allocate report status array */
txr->tx_rsq = (qidx_t *)malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_IXGBE, M_NOWAIT | M_ZERO);
@@ -796,6 +795,8 @@ ixgbe_initialize_transmit_units(if_ctx_t ctx)
IXGBE_WRITE_REG(hw, IXGBE_TDT(j), 0);
/* Cache the tail address */
+ txr->tail = IXGBE_TDT(txr->me);
+
txr->tx_rs_cidx = txr->tx_rs_pidx;
txr->tx_cidx_processed = scctx->isc_ntxd[0] - 1;
for (int k = 0; k < scctx->isc_ntxd[0]; k++)
@@ -2052,7 +2053,6 @@ ixgbe_if_msix_intr_assign(if_ctx_t ctx, int msix)
}
rx_que->msix = vector;
- sc->active_queues |= (u64)(1 << rx_que->msix);
if (sc->feat_en & IXGBE_FEATURE_RSS) {
/*
* The queue ID is used as the RSS layer bucket ID.
@@ -3740,7 +3740,7 @@ ixgbe_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
struct ixgbe_softc *sc = iflib_get_softc(ctx);
struct ix_rx_queue *que = &sc->rx_queues[rxqid];
- ixgbe_enable_queue(sc, que->rxr.me);
+ ixgbe_enable_queue(sc, que->msix);
return (0);
} /* ixgbe_if_rx_queue_intr_enable */
@@ -3752,7 +3752,7 @@ static void
ixgbe_enable_queue(struct ixgbe_softc *sc, u32 vector)
{
struct ixgbe_hw *hw = &sc->hw;
- u64 queue = (u64)(1 << vector);
+ u64 queue = 1ULL << vector;
u32 mask;
if (hw->mac.type == ixgbe_mac_82598EB) {
@@ -3775,7 +3775,7 @@ static void
ixgbe_disable_queue(struct ixgbe_softc *sc, u32 vector)
{
struct ixgbe_hw *hw = &sc->hw;
- u64 queue = (u64)(1 << vector);
+ u64 queue = 1ULL << vector;
u32 mask;
if (hw->mac.type == ixgbe_mac_82598EB) {
diff --git a/sys/dev/ixgbe/if_ixv.c b/sys/dev/ixgbe/if_ixv.c
index 25654ff60950..3eb7a1f5a1b7 100644
--- a/sys/dev/ixgbe/if_ixv.c
+++ b/sys/dev/ixgbe/if_ixv.c
@@ -271,7 +271,6 @@ ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
txr->me = i;
txr->sc = que->sc = sc;
- sc->active_queues |= (u64)1 << txr->me;
/* Allocate report status array */
if (!(txr->tx_rsq = (qidx_t *)malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) {
@@ -1039,8 +1038,6 @@ ixv_if_msix_intr_assign(if_ctx_t ctx, int msix)
}
rx_que->msix = vector;
- sc->active_queues |= (u64)(1 << rx_que->msix);
-
}
for (int i = 0; i < sc->num_tx_queues; i++) {
diff --git a/sys/dev/ixgbe/ixgbe.h b/sys/dev/ixgbe/ixgbe.h
index 45f5b88fd1f1..00b01f71c996 100644
--- a/sys/dev/ixgbe/ixgbe.h
+++ b/sys/dev/ixgbe/ixgbe.h
@@ -337,7 +337,6 @@ struct rx_ring {
struct ix_rx_queue {
struct ixgbe_softc *sc;
u32 msix; /* This queue's MSIX vector */
- u32 eims; /* This queue's EIMS bit */
u32 eitr_setting;
struct resource *res;
void *tag;
@@ -440,7 +439,6 @@ struct ixgbe_softc {
*/
struct ix_tx_queue *tx_queues;
struct ix_rx_queue *rx_queues;
- u64 active_queues;
/* Multicast array memory */
struct ixgbe_mc_addr *mta;
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