> -----Original Message-----
> From: Akihiko Odaki <akihiko.od...@daynix.com>
> Sent: Sunday, 23 April 2023 06:19
> Cc: Sriram Yagnaraman <sriram.yagnara...@est.tech>; Jason Wang
> <jasow...@redhat.com>; Dmitry Fleytman <dmitry.fleyt...@gmail.com>;
> Michael S . Tsirkin <m...@redhat.com>; Alex Bennée
> <alex.ben...@linaro.org>; Philippe Mathieu-Daudé <phi...@linaro.org>;
> Thomas Huth <th...@redhat.com>; Wainer dos Santos Moschetta
> <waine...@redhat.com>; Beraldo Leal <bl...@redhat.com>; Cleber Rosa
> <cr...@redhat.com>; Laurent Vivier <lviv...@redhat.com>; Paolo Bonzini
> <pbonz...@redhat.com>; qemu-devel@nongnu.org; Tomasz Dzieciol
> <t.dziec...@partner.samsung.com>; Akihiko Odaki
> <akihiko.od...@daynix.com>
> Subject: [PATCH v3 44/47] igb: Notify only new interrupts
>
> This follows the corresponding change for e1000e. This fixes:
> tests/avocado/netdev-ethtool.py:NetDevEthtool.test_igb
>
> Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com>
> ---
> hw/net/igb_core.c | 201 ++++++++----------
> hw/net/trace-events | 11 +-
> .../org.centos/stream/8/x86_64/test-avocado | 1 +
> tests/avocado/netdev-ethtool.py | 4 -
> 4 files changed, 87 insertions(+), 130 deletions(-)
>
This is a good change, makes a clear distinction on whether we are setting EICR
or ICR or MBVFICR.
> diff --git a/hw/net/igb_core.c b/hw/net/igb_core.c index
> 1519a90aa6..96b7335b31 100644
> --- a/hw/net/igb_core.c
> +++ b/hw/net/igb_core.c
> @@ -94,10 +94,7 @@ static ssize_t
> igb_receive_internal(IGBCore *core, const struct iovec *iov, int iovcnt,
> bool has_vnet, bool *external_tx);
>
> -static inline void
> -igb_set_interrupt_cause(IGBCore *core, uint32_t val);
> -
> -static void igb_update_interrupt_state(IGBCore *core);
> +static void igb_raise_interrupts(IGBCore *core, size_t index, uint32_t
> +causes);
> static void igb_reset(IGBCore *core, bool sw);
>
> static inline void
> @@ -913,8 +910,8 @@ igb_start_xmit(IGBCore *core, const IGB_TxRing *txr)
> }
>
> if (eic) {
> - core->mac[EICR] |= eic;
> - igb_set_interrupt_cause(core, E1000_ICR_TXDW);
> + igb_raise_interrupts(core, EICR, eic);
> + igb_raise_interrupts(core, ICR, E1000_ICR_TXDW);
> }
>
> net_tx_pkt_reset(txr->tx->tx_pkt, net_tx_pkt_unmap_frag_pci, d); @@ -
> 1686,6 +1683,7 @@ igb_receive_internal(IGBCore *core, const struct iovec
> *iov, int iovcnt, {
> uint16_t queues = 0;
> uint32_t causes = 0;
> + uint32_t ecauses = 0;
> union {
> L2Header l2_header;
> uint8_t octets[ETH_ZLEN];
> @@ -1788,13 +1786,14 @@ igb_receive_internal(IGBCore *core, const struct
> iovec *iov, int iovcnt,
> causes |= E1000_ICS_RXDMT0;
> }
>
> - core->mac[EICR] |= igb_rx_wb_eic(core, rxr.i->idx);
> + ecauses |= igb_rx_wb_eic(core, rxr.i->idx);
>
> trace_e1000e_rx_written_to_guest(rxr.i->idx);
> }
>
> trace_e1000e_rx_interrupt_set(causes);
> - igb_set_interrupt_cause(core, causes);
> + igb_raise_interrupts(core, EICR, ecauses);
> + igb_raise_interrupts(core, ICR, causes);
>
> return orig_size;
> }
> @@ -1854,7 +1853,7 @@ void igb_core_set_link_status(IGBCore *core)
> }
>
> if (core->mac[STATUS] != old_status) {
> - igb_set_interrupt_cause(core, E1000_ICR_LSC);
> + igb_raise_interrupts(core, ICR, E1000_ICR_LSC);
> }
> }
>
> @@ -1934,13 +1933,6 @@ igb_set_rx_control(IGBCore *core, int index,
> uint32_t val)
> }
> }
>
> -static inline void
> -igb_clear_ims_bits(IGBCore *core, uint32_t bits) -{
> - trace_e1000e_irq_clear_ims(bits, core->mac[IMS], core->mac[IMS] &
> ~bits);
> - core->mac[IMS] &= ~bits;
> -}
> -
> static inline bool
> igb_postpone_interrupt(IGBIntrDelayTimer *timer) { @@ -1963,9 +1955,8
> @@ igb_eitr_should_postpone(IGBCore *core, int idx)
> return igb_postpone_interrupt(&core->eitr[idx]);
> }
>
> -static void igb_send_msix(IGBCore *core)
> +static void igb_send_msix(IGBCore *core, uint32_t causes)
> {
> - uint32_t causes = core->mac[EICR] & core->mac[EIMS];
> int vector;
>
> for (vector = 0; vector < IGB_INTR_NUM; ++vector) { @@ -1988,124
> +1979,116 @@ igb_fix_icr_asserted(IGBCore *core)
> trace_e1000e_irq_fix_icr_asserted(core->mac[ICR]);
> }
>
> -static void
> -igb_update_interrupt_state(IGBCore *core)
> +static void igb_raise_interrupts(IGBCore *core, size_t index, uint32_t
> +causes)
> {
> - uint32_t icr;
> - uint32_t causes;
> + uint32_t old_causes = core->mac[ICR] & core->mac[IMS];
> + uint32_t old_ecauses = core->mac[EICR] & core->mac[EIMS];
> + uint32_t raised_causes;
> + uint32_t raised_ecauses;
> uint32_t int_alloc;
>
> - icr = core->mac[ICR] & core->mac[IMS];
> + trace_e1000e_irq_set(index << 2,
> + core->mac[index], core->mac[index] | causes);
> +
> + core->mac[index] |= causes;
>
> if (core->mac[GPIE] & E1000_GPIE_MSIX_MODE) {
> - if (icr) {
> - causes = 0;
> - if (icr & E1000_ICR_DRSTA) {
> - int_alloc = core->mac[IVAR_MISC] & 0xff;
> - if (int_alloc & E1000_IVAR_VALID) {
> - causes |= BIT(int_alloc & 0x1f);
> - }
> + raised_causes = core->mac[ICR] & core->mac[IMS] & ~old_causes;
> +
> + if (raised_causes & E1000_ICR_DRSTA) {
> + int_alloc = core->mac[IVAR_MISC] & 0xff;
> + if (int_alloc & E1000_IVAR_VALID) {
> + core->mac[EICR] |= BIT(int_alloc & 0x1f);
> }
> - /* Check if other bits (excluding the TCP Timer) are enabled. */
> - if (icr & ~E1000_ICR_DRSTA) {
> - int_alloc = (core->mac[IVAR_MISC] >> 8) & 0xff;
> - if (int_alloc & E1000_IVAR_VALID) {
> - causes |= BIT(int_alloc & 0x1f);
> - }
> - trace_e1000e_irq_add_msi_other(core->mac[EICR]);
> + }
> + /* Check if other bits (excluding the TCP Timer) are enabled. */
> + if (raised_causes & ~E1000_ICR_DRSTA) {
> + int_alloc = (core->mac[IVAR_MISC] >> 8) & 0xff;
> + if (int_alloc & E1000_IVAR_VALID) {
> + core->mac[EICR] |= BIT(int_alloc & 0x1f);
> }
> - core->mac[EICR] |= causes;
> }
>
> - if ((core->mac[EICR] & core->mac[EIMS])) {
> - igb_send_msix(core);
> + raised_ecauses = core->mac[EICR] & core->mac[EIMS] & ~old_ecauses;
> + if (!raised_ecauses) {
> + return;
> }
> +
> + igb_send_msix(core, raised_ecauses);
> } else {
> igb_fix_icr_asserted(core);
>
> - if (icr) {
> - core->mac[EICR] |= (icr & E1000_ICR_DRSTA) | E1000_EICR_OTHER;
> - } else {
> - core->mac[EICR] &= ~E1000_EICR_OTHER;
> + raised_causes = core->mac[ICR] & core->mac[IMS] & ~old_causes;
> + if (!raised_causes) {
> + return;
> }
>
> - trace_e1000e_irq_pending_interrupts(core->mac[ICR] & core-
> >mac[IMS],
> - core->mac[ICR], core->mac[IMS]);
> + core->mac[EICR] |= (raised_causes & E1000_ICR_DRSTA) |
> + E1000_EICR_OTHER;
>
> if (msix_enabled(core->owner)) {
> - if (icr) {
> - trace_e1000e_irq_msix_notify_vec(0);
> - msix_notify(core->owner, 0);
> - }
> + trace_e1000e_irq_msix_notify_vec(0);
> + msix_notify(core->owner, 0);
> } else if (msi_enabled(core->owner)) {
> - if (icr) {
> - msi_notify(core->owner, 0);
> - }
> + trace_e1000e_irq_msi_notify(raised_causes);
> + msi_notify(core->owner, 0);
> } else {
> - if (icr) {
> - igb_raise_legacy_irq(core);
> - } else {
> - igb_lower_legacy_irq(core);
> - }
> + igb_raise_legacy_irq(core);
> }
> }
> }
>
> -static void
> -igb_set_interrupt_cause(IGBCore *core, uint32_t val)
> +static void igb_lower_interrupts(IGBCore *core, size_t index, uint32_t
> +causes)
> {
> - trace_e1000e_irq_set_cause_entry(val, core->mac[ICR]);
> + trace_e1000e_irq_clear(index << 2,
> + core->mac[index], core->mac[index] &
> + ~causes);
> +
> + core->mac[index] &= ~causes;
>
> - core->mac[ICR] |= val;
> + trace_e1000e_irq_pending_interrupts(core->mac[ICR] & core->mac[IMS],
> + core->mac[ICR],
> + core->mac[IMS]);
>
> - trace_e1000e_irq_set_cause_exit(val, core->mac[ICR]);
> + if (!(core->mac[ICR] & core->mac[IMS]) &&
> + !(core->mac[GPIE] & E1000_GPIE_MSIX_MODE)) {
> + core->mac[EICR] &= ~E1000_EICR_OTHER;
>
> - igb_update_interrupt_state(core);
> + if (!msix_enabled(core->owner) && !msi_enabled(core->owner)) {
> + igb_lower_legacy_irq(core);
> + }
> + }
> }
>
> static void igb_set_eics(IGBCore *core, int index, uint32_t val) {
> bool msix = !!(core->mac[GPIE] & E1000_GPIE_MSIX_MODE);
> + uint32_t mask = msix ? E1000_EICR_MSIX_MASK :
> + E1000_EICR_LEGACY_MASK;
>
> trace_igb_irq_write_eics(val, msix);
> -
> - core->mac[EICS] |=
> - val & (msix ? E1000_EICR_MSIX_MASK : E1000_EICR_LEGACY_MASK);
> -
> - /*
> - * TODO: Move to igb_update_interrupt_state if EICS is modified in other
> - * places.
> - */
> - core->mac[EICR] = core->mac[EICS];
> -
> - igb_update_interrupt_state(core);
> + igb_raise_interrupts(core, EICR, val & mask);
> }
>
> static void igb_set_eims(IGBCore *core, int index, uint32_t val) {
> bool msix = !!(core->mac[GPIE] & E1000_GPIE_MSIX_MODE);
> + uint32_t mask = msix ? E1000_EICR_MSIX_MASK :
> + E1000_EICR_LEGACY_MASK;
>
> trace_igb_irq_write_eims(val, msix);
> -
> - core->mac[EIMS] |=
> - val & (msix ? E1000_EICR_MSIX_MASK : E1000_EICR_LEGACY_MASK);
> -
> - igb_update_interrupt_state(core);
> + igb_raise_interrupts(core, EIMS, val & mask);
> }
>
> static void mailbox_interrupt_to_vf(IGBCore *core, uint16_t vfn) {
> uint32_t ent = core->mac[VTIVAR_MISC + vfn];
> + uint32_t causes;
>
> if ((ent & E1000_IVAR_VALID)) {
> - core->mac[EICR] |= (ent & 0x3) << (22 - vfn * IGBVF_MSIX_VEC_NUM);
> - igb_update_interrupt_state(core);
> + causes = (ent & 0x3) << (22 - vfn * IGBVF_MSIX_VEC_NUM);
> + igb_raise_interrupts(core, EICR, causes);
> }
> }
>
> static void mailbox_interrupt_to_pf(IGBCore *core) {
> - igb_set_interrupt_cause(core, E1000_ICR_VMMB);
> + igb_raise_interrupts(core, ICR, E1000_ICR_VMMB);
Shouldn't we check MBVFIMR before sending the interrupt to PF?
Something like this:
diff --git a/hw/net/igb_core.c b/hw/net/igb_core.c
index 96b7335b31..84a91ff815 100644
--- a/hw/net/igb_core.c
+++ b/hw/net/igb_core.c
@@ -2088,7 +2088,10 @@ static void mailbox_interrupt_to_vf(IGBCore *core,
uint16_t vfn)
static void mailbox_interrupt_to_pf(IGBCore *core)
{
- igb_raise_interrupts(core, ICR, E1000_ICR_VMMB);
+ if (((core->mac[MBVFIMR] | (core->mac[MBVFIMR] << 16)) &
core->mac[MBVFICR]) ||
+ (core->mac[MBVFIMR] & core->mac[VFLRE])) {
+ igb_raise_interrupts(core, ICR, E1000_ICR_VMMB);
+ }
}
> }
>
> static void igb_set_pfmailbox(IGBCore *core, int index, uint32_t val) @@ -
> 2196,13 +2179,12 @@ static void igb_w1c(IGBCore *core, int index, uint32_t
> val) static void igb_set_eimc(IGBCore *core, int index, uint32_t val) {
> bool msix = !!(core->mac[GPIE] & E1000_GPIE_MSIX_MODE);
> + uint32_t mask = msix ? E1000_EICR_MSIX_MASK :
> + E1000_EICR_LEGACY_MASK;
>
> - /* Interrupts are disabled via a write to EIMC and reflected in EIMS. */
> - core->mac[EIMS] &=
> - ~(val & (msix ? E1000_EICR_MSIX_MASK : E1000_EICR_LEGACY_MASK));
> + trace_igb_irq_write_eimc(val, msix);
>
> - trace_igb_irq_write_eimc(val, core->mac[EIMS], msix);
> - igb_update_interrupt_state(core);
> + /* Interrupts are disabled via a write to EIMC and reflected in EIMS. */
> + igb_lower_interrupts(core, EIMS, val & mask);
> }
>
> static void igb_set_eiac(IGBCore *core, int index, uint32_t val) @@ -2242,11
> +2224,10 @@ static void igb_set_eicr(IGBCore *core, int index, uint32_t val)
> * TODO: In IOV mode, only bit zero of this vector is available for the
> PF
> * function.
> */
> - core->mac[EICR] &=
> - ~(val & (msix ? E1000_EICR_MSIX_MASK : E1000_EICR_LEGACY_MASK));
> + uint32_t mask = msix ? E1000_EICR_MSIX_MASK :
> + E1000_EICR_LEGACY_MASK;
>
> trace_igb_irq_write_eicr(val, msix);
> - igb_update_interrupt_state(core);
> + igb_lower_interrupts(core, EICR, val & mask);
> }
>
> static void igb_set_vtctrl(IGBCore *core, int index, uint32_t val) @@ -2346,7
> +2327,7 @@ igb_autoneg_timer(void *opaque)
>
> igb_update_flowctl_status(core);
> /* signal link status change to the guest */
> - igb_set_interrupt_cause(core, E1000_ICR_LSC);
> + igb_raise_interrupts(core, ICR, E1000_ICR_LSC);
> }
> }
>
> @@ -2419,7 +2400,7 @@ igb_set_mdic(IGBCore *core, int index, uint32_t
> val)
> core->mac[MDIC] = val | E1000_MDIC_READY;
>
> if (val & E1000_MDIC_INT_EN) {
> - igb_set_interrupt_cause(core, E1000_ICR_MDAC);
> + igb_raise_interrupts(core, ICR, E1000_ICR_MDAC);
> }
> }
>
> @@ -2527,28 +2508,23 @@ static void
> igb_set_ics(IGBCore *core, int index, uint32_t val) {
> trace_e1000e_irq_write_ics(val);
> - igb_set_interrupt_cause(core, val);
> + igb_raise_interrupts(core, ICR, val);
> }
>
> static void
> igb_set_imc(IGBCore *core, int index, uint32_t val) {
> trace_e1000e_irq_ims_clear_set_imc(val);
> - igb_clear_ims_bits(core, val);
> - igb_update_interrupt_state(core);
> + igb_lower_interrupts(core, IMS, val);
> }
>
> static void
> igb_set_ims(IGBCore *core, int index, uint32_t val) {
> - uint32_t valid_val = val & 0x77D4FBFD;
> -
> - trace_e1000e_irq_set_ims(val, core->mac[IMS], core->mac[IMS] |
> valid_val);
> - core->mac[IMS] |= valid_val;
> - igb_update_interrupt_state(core);
> + igb_raise_interrupts(core, IMS, val & 0x77D4FBFD);
> }
>
> -static void igb_commit_icr(IGBCore *core)
> +static void igb_nsicr(IGBCore *core)
> {
> /*
> * If GPIE.NSICR = 0, then the clear of IMS will occur only if at @@
> -2557,19
> +2533,14 @@ static void igb_commit_icr(IGBCore *core)
> */
> if ((core->mac[GPIE] & E1000_GPIE_NSICR) ||
> (core->mac[IMS] && (core->mac[ICR] & E1000_ICR_INT_ASSERTED))) {
> - igb_clear_ims_bits(core, core->mac[IAM]);
> + igb_lower_interrupts(core, IMS, core->mac[IAM]);
> }
> -
> - igb_update_interrupt_state(core);
> }
>
> static void igb_set_icr(IGBCore *core, int index, uint32_t val) {
> - uint32_t icr = core->mac[ICR] & ~val;
> -
> - trace_igb_irq_icr_write(val, core->mac[ICR], icr);
> - core->mac[ICR] = icr;
> - igb_commit_icr(core);
> + igb_nsicr(core);
> + igb_lower_interrupts(core, ICR, val);
> }
>
> static uint32_t
> @@ -2620,21 +2591,19 @@ static uint32_t
> igb_mac_icr_read(IGBCore *core, int index) {
> uint32_t ret = core->mac[ICR];
> - trace_e1000e_irq_icr_read_entry(ret);
>
> if (core->mac[GPIE] & E1000_GPIE_NSICR) {
> trace_igb_irq_icr_clear_gpie_nsicr();
> - core->mac[ICR] = 0;
> + igb_lower_interrupts(core, ICR, 0xffffffff);
> } else if (core->mac[IMS] == 0) {
> trace_e1000e_irq_icr_clear_zero_ims();
> - core->mac[ICR] = 0;
> + igb_lower_interrupts(core, ICR, 0xffffffff);
> } else if (!msix_enabled(core->owner)) {
> trace_e1000e_irq_icr_clear_nonmsix_icr_read();
> - core->mac[ICR] = 0;
> + igb_lower_interrupts(core, ICR, 0xffffffff);
> }
>
> - trace_e1000e_irq_icr_read_exit(core->mac[ICR]);
> - igb_commit_icr(core);
> + igb_nsicr(core);
> return ret;
> }
>
> diff --git a/hw/net/trace-events b/hw/net/trace-events index
> d171dc8179..e4a98b2c7d 100644
> --- a/hw/net/trace-events
> +++ b/hw/net/trace-events
> @@ -207,21 +207,14 @@ e1000e_irq_msix_notify_vec(uint32_t vector)
> "MSI-X notify vector 0x%x"
> e1000e_irq_postponed_by_xitr(uint32_t reg) "Interrupt postponed by [E]ITR
> register 0x%x"
> e1000e_irq_clear(uint32_t offset, uint32_t old, uint32_t new) "Clearing
> interrupt register 0x%x: 0x%x --> 0x%x"
> e1000e_irq_set(uint32_t offset, uint32_t old, uint32_t new) "Setting
> interrupt register 0x%x: 0x%x --> 0x%x"
> -e1000e_irq_clear_ims(uint32_t bits, uint32_t old_ims, uint32_t new_ims)
> "Clearing IMS bits 0x%x: 0x%x --> 0x%x"
> -e1000e_irq_set_ims(uint32_t bits, uint32_t old_ims, uint32_t new_ims)
> "Setting IMS bits 0x%x: 0x%x --> 0x%x"
> e1000e_irq_fix_icr_asserted(uint32_t new_val) "ICR_ASSERTED bit fixed:
> 0x%x"
> e1000e_irq_add_msi_other(uint32_t new_val) "ICR_OTHER bit added: 0x%x"
> e1000e_irq_pending_interrupts(uint32_t pending, uint32_t icr, uint32_t ims)
> "ICR PENDING: 0x%x (ICR: 0x%x, IMS: 0x%x)"
> -e1000e_irq_set_cause_entry(uint32_t val, uint32_t icr) "Going to set IRQ
> cause 0x%x, ICR: 0x%x"
> -e1000e_irq_set_cause_exit(uint32_t val, uint32_t icr) "Set IRQ cause 0x%x,
> ICR: 0x%x"
> -e1000e_irq_icr_write(uint32_t bits, uint32_t old_icr, uint32_t new_icr)
> "Clearing ICR bits 0x%x: 0x%x --> 0x%x"
> e1000e_irq_write_ics(uint32_t val) "Adding ICR bits 0x%x"
> e1000e_irq_icr_process_iame(void) "Clearing IMS bits due to IAME"
> e1000e_irq_read_ics(uint32_t ics) "Current ICS: 0x%x"
> e1000e_irq_read_ims(uint32_t ims) "Current IMS: 0x%x"
> e1000e_irq_icr_clear_nonmsix_icr_read(void) "Clearing ICR on read due to
> non MSI-X int"
> -e1000e_irq_icr_read_entry(uint32_t icr) "Starting ICR read. Current ICR:
> 0x%x"
> -e1000e_irq_icr_read_exit(uint32_t icr) "Ending ICR read. Current ICR: 0x%x"
> e1000e_irq_icr_clear_zero_ims(void) "Clearing ICR on read due to zero IMS"
> e1000e_irq_icr_clear_iame(void) "Clearing ICR on read due to IAME"
> e1000e_irq_iam_clear_eiame(uint32_t iam, uint32_t cause) "Clearing IMS
> due to EIAME, IAM: 0x%X, cause: 0x%X"
> @@ -237,7 +230,6 @@ e1000e_irq_tidv_fpd_not_running(void) "FPD
> written while TIDV was not running"
> e1000e_irq_eitr_set(uint32_t eitr_num, uint32_t val) "EITR[%u] = %u"
> e1000e_irq_itr_set(uint32_t val) "ITR = %u"
> e1000e_irq_fire_all_timers(uint32_t val) "Firing all delay/throttling timers
> on
> all interrupts enable (0x%X written to IMS)"
> -e1000e_irq_adding_delayed_causes(uint32_t val, uint32_t icr) "Merging
> delayed causes 0x%X to ICR 0x%X"
> e1000e_irq_msix_pending_clearing(uint32_t cause, uint32_t int_cfg, uint32_t
> vec) "Clearing MSI-X pending bit for cause 0x%x, IVAR config 0x%x, vector %u"
>
> e1000e_wrn_msix_vec_wrong(uint32_t cause, uint32_t cfg) "Invalid
> configuration for cause 0x%x: 0x%x"
> @@ -290,12 +282,11 @@ igb_rx_desc_buff_write(uint64_t addr, uint16_t
> offset, const void* source, uint3 igb_rx_metadata_rss(uint32_t rss) "RSS
> data: 0x%X"
>
> igb_irq_icr_clear_gpie_nsicr(void) "Clearing ICR on read due to GPIE.NSICR
> enabled"
> -igb_irq_icr_write(uint32_t bits, uint32_t old_icr, uint32_t new_icr)
> "Clearing
> ICR bits 0x%x: 0x%x --> 0x%x"
> igb_irq_set_iam(uint32_t icr) "Update IAM: 0x%x"
> igb_irq_read_iam(uint32_t icr) "Current IAM: 0x%x"
> igb_irq_write_eics(uint32_t val, bool msix) "Update EICS: 0x%x MSI-X: %d"
> igb_irq_write_eims(uint32_t val, bool msix) "Update EIMS: 0x%x MSI-X: %d"
> -igb_irq_write_eimc(uint32_t val, uint32_t eims, bool msix) "Update EIMC:
> 0x%x EIMS: 0x%x MSI-X: %d"
> +igb_irq_write_eimc(uint32_t val, bool msix) "Update EIMC: 0x%x MSI-X: %d"
> igb_irq_write_eiac(uint32_t val) "Update EIAC: 0x%x"
> igb_irq_write_eiam(uint32_t val, bool msix) "Update EIAM: 0x%x MSI-X: %d"
> igb_irq_write_eicr(uint32_t val, bool msix) "Update EICR: 0x%x MSI-X: %d"
> diff --git a/scripts/ci/org.centos/stream/8/x86_64/test-avocado
> b/scripts/ci/org.centos/stream/8/x86_64/test-avocado
> index a1aa601ee3..e0443fc8ae 100755
> --- a/scripts/ci/org.centos/stream/8/x86_64/test-avocado
> +++ b/scripts/ci/org.centos/stream/8/x86_64/test-avocado
> @@ -30,6 +30,7 @@ make get-vm-images
> tests/avocado/cpu_queries.py:QueryCPUModelExpansion.test \
> tests/avocado/empty_cpu_model.py:EmptyCPUModel.test \
> tests/avocado/hotplug_cpu.py:HotPlugCPU.test \
> + tests/avocado/netdev-ethtool.py:NetDevEthtool.test_igb \
> tests/avocado/netdev-ethtool.py:NetDevEthtool.test_igb_nomsi \
> tests/avocado/info_usernet.py:InfoUsernet.test_hostfwd \
> tests/avocado/intel_iommu.py:IntelIOMMU.test_intel_iommu \ diff --git
> a/tests/avocado/netdev-ethtool.py b/tests/avocado/netdev-ethtool.py index
> 6da800f62b..5f33288f81 100644
> --- a/tests/avocado/netdev-ethtool.py
> +++ b/tests/avocado/netdev-ethtool.py
> @@ -67,10 +67,6 @@ def common_test_code(self, netdev,
> extra_args=None):
> # no need to gracefully shutdown, just finish
> self.vm.kill()
>
> - # Skip testing for MSI for now. Allegedly it was fixed by:
> - # 28e96556ba (igb: Allocate MSI-X vector when testing)
> - # but I'm seeing oops in the kernel
> - @skip("Kernel bug with MSI enabled")
> def test_igb(self):
> """
> :avocado: tags=device:igb
> --
> 2.40.0
