git: ecb7f44be901 - stable/13 - e1000: fix interface capabilities management
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Date: Wed, 22 Dec 2021 09:03:59 UTC
The branch stable/13 has been updated by vmaffione:
URL: https://cgit.FreeBSD.org/src/commit/?id=ecb7f44be90190974ee97389827563882345eb2a
commit ecb7f44be90190974ee97389827563882345eb2a
Author: Vincenzo Maffione <vmaffione@FreeBSD.org>
AuthorDate: 2021-12-08 08:55:04 +0000
Commit: Vincenzo Maffione <vmaffione@FreeBSD.org>
CommitDate: 2021-12-22 08:50:35 +0000
e1000: fix interface capabilities management
The e1000 drivers (em, lem, igb) are currently looking at the
iflib copies of the capabilities bitvectors (scctx->isc_capabilities
and scctx->isc_capenable) rather than the ifnet ones
(ifp->if_capabilities and ifp->if_capenable). However, the latter
are the ones that are actually updated by ifconfig and that should
be used by the drivers during interface operation. The former are
set by the driver on interface attach (for iflib internal use)
and should not be used anymore by the driver.
This patch fixes the e1000 driver to use the correct bitvectors.
PR: 260068
Reviewed by: markj
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33154
(cherry picked from commit e0f4cdba533693bb6ef9d90243acdad89605b150)
---
sys/dev/e1000/if_em.c | 42 +++++++++++++++++++++++-------------------
1 file changed, 23 insertions(+), 19 deletions(-)
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c
index b3775b351c70..cb0c01c9c65d 100644
--- a/sys/dev/e1000/if_em.c
+++ b/sys/dev/e1000/if_em.c
@@ -297,12 +297,12 @@ static void em_if_debug(if_ctx_t);
static void em_update_stats_counters(struct e1000_softc *);
static void em_add_hw_stats(struct e1000_softc *);
static int em_if_set_promisc(if_ctx_t, int);
-static bool em_if_vlan_filter_capable(struct e1000_softc *);
-static bool em_if_vlan_filter_used(struct e1000_softc *);
+static bool em_if_vlan_filter_capable(if_ctx_t);
+static bool em_if_vlan_filter_used(if_ctx_t);
static void em_if_vlan_filter_enable(struct e1000_softc *);
static void em_if_vlan_filter_disable(struct e1000_softc *);
static void em_if_vlan_filter_write(struct e1000_softc *);
-static void em_setup_vlan_hw_support(struct e1000_softc *);
+static void em_setup_vlan_hw_support(if_ctx_t ctx);
static int em_sysctl_nvm_info(SYSCTL_HANDLER_ARGS);
static void em_print_nvm_info(struct e1000_softc *);
static void em_fw_version_locked(if_ctx_t);
@@ -915,14 +915,15 @@ em_if_attach_pre(if_ctx_t ctx)
scctx->isc_rxd_size[0] = sizeof(struct e1000_rx_desc);
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP;
scctx->isc_txrx = &lem_txrx;
- scctx->isc_capabilities = scctx->isc_capenable = LEM_CAPS;
+ scctx->isc_capabilities = LEM_CAPS;
if (hw->mac.type < e1000_82543)
- scctx->isc_capenable &= ~(IFCAP_HWCSUM|IFCAP_VLAN_HWCSUM);
+ scctx->isc_capabilities &= ~(IFCAP_HWCSUM|IFCAP_VLAN_HWCSUM);
/* 82541ER doesn't do HW tagging */
if (hw->device_id == E1000_DEV_ID_82541ER || hw->device_id == E1000_DEV_ID_82541ER_LOM)
- scctx->isc_capenable &= ~IFCAP_VLAN_HWTAGGING;
+ scctx->isc_capabilities &= ~IFCAP_VLAN_HWTAGGING;
/* INTx only */
scctx->isc_msix_bar = 0;
+ scctx->isc_capenable = scctx->isc_capabilities;
}
/* Setup PCI resources */
@@ -1356,7 +1357,7 @@ em_if_init(if_ctx_t ctx)
em_initialize_receive_unit(ctx);
/* Set up VLAN support and filter */
- em_setup_vlan_hw_support(sc);
+ em_setup_vlan_hw_support(ctx);
/* Don't lose promiscuous settings */
em_if_set_promisc(ctx, if_getflags(ifp));
@@ -1683,7 +1684,7 @@ em_if_set_promisc(if_ctx_t ctx, int flags)
reg_rctl &= ~E1000_RCTL_UPE;
E1000_WRITE_REG(&sc->hw, E1000_RCTL, reg_rctl);
}
- if (em_if_vlan_filter_used(sc))
+ if (em_if_vlan_filter_used(ctx))
em_if_vlan_filter_enable(sc);
}
return (0);
@@ -3242,12 +3243,12 @@ em_initialize_receive_unit(if_ctx_t ctx)
/* Set up L3 and L4 csum Rx descriptor offloads */
rxcsum = E1000_READ_REG(hw, E1000_RXCSUM);
- if (scctx->isc_capenable & IFCAP_RXCSUM) {
+ if (if_getcapenable(ifp) & IFCAP_RXCSUM) {
rxcsum |= E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPOFL;
if (hw->mac.type > e1000_82575)
rxcsum |= E1000_RXCSUM_CRCOFL;
else if (hw->mac.type < em_mac_min &&
- scctx->isc_capenable & IFCAP_HWCSUM_IPV6)
+ if_getcapenable(ifp) & IFCAP_HWCSUM_IPV6)
rxcsum |= E1000_RXCSUM_IPV6OFL;
} else {
rxcsum &= ~(E1000_RXCSUM_IPOFL | E1000_RXCSUM_TUOFL);
@@ -3441,11 +3442,11 @@ em_if_vlan_unregister(if_ctx_t ctx, u16 vtag)
}
static bool
-em_if_vlan_filter_capable(struct e1000_softc *sc)
+em_if_vlan_filter_capable(if_ctx_t ctx)
{
- if_softc_ctx_t scctx = sc->shared;
+ if_t ifp = iflib_get_ifp(ctx);
- if ((scctx->isc_capenable & IFCAP_VLAN_HWFILTER) &&
+ if ((if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER) &&
!em_disable_crc_stripping)
return (true);
@@ -3453,9 +3454,11 @@ em_if_vlan_filter_capable(struct e1000_softc *sc)
}
static bool
-em_if_vlan_filter_used(struct e1000_softc *sc)
+em_if_vlan_filter_used(if_ctx_t ctx)
{
- if (!em_if_vlan_filter_capable(sc))
+ struct e1000_softc *sc = iflib_get_softc(ctx);
+
+ if (!em_if_vlan_filter_capable(ctx))
return (false);
for (int i = 0; i < EM_VFTA_SIZE; i++)
@@ -3515,10 +3518,11 @@ em_if_vlan_filter_write(struct e1000_softc *sc)
}
static void
-em_setup_vlan_hw_support(struct e1000_softc *sc)
+em_setup_vlan_hw_support(if_ctx_t ctx)
{
- if_softc_ctx_t scctx = sc->shared;
+ struct e1000_softc *sc = iflib_get_softc(ctx);
struct e1000_hw *hw = &sc->hw;
+ struct ifnet *ifp = iflib_get_ifp(ctx);
u32 reg;
/* XXXKB: Return early if we are a VF until VF decap and filter management
@@ -3527,7 +3531,7 @@ em_setup_vlan_hw_support(struct e1000_softc *sc)
if (sc->vf_ifp)
return;
- if (scctx->isc_capenable & IFCAP_VLAN_HWTAGGING &&
+ if (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING &&
!em_disable_crc_stripping) {
reg = E1000_READ_REG(hw, E1000_CTRL);
reg |= E1000_CTRL_VME;
@@ -3539,7 +3543,7 @@ em_setup_vlan_hw_support(struct e1000_softc *sc)
}
/* If we aren't doing HW filtering, we're done */
- if (!em_if_vlan_filter_capable(sc)) {
+ if (!em_if_vlan_filter_capable(ctx)) {
em_if_vlan_filter_disable(sc);
return;
}