Add infrastructure for the driver to pass indication via unmask register to support interrupt lost heuristic.
Signed-off-by: Shai Brandes <[email protected]> Reviewed-by: Amit Bernstein <[email protected]> Reviewed-by: Yosef Raisman <[email protected]> --- drivers/net/ena/base/ena_com.h | 9 ++++++--- drivers/net/ena/ena_ethdev.c | 2 +- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ena/base/ena_com.h b/drivers/net/ena/base/ena_com.h index 38892ac7e1..82306aaa9c 100644 --- a/drivers/net/ena/base/ena_com.h +++ b/drivers/net/ena/base/ena_com.h @@ -1197,6 +1197,8 @@ static inline int ena_com_get_customer_metric_count(struct ena_com_dev *ena_dev) * @unmask: unmask enable/disable * @no_moderation_update: 0 - Indicates that any of the TX/RX intervals was * updated, 1 - otherwise + * @lost_interrupt: true - if driver heuristic indicates interrupt was lost + * false - otherwise * * Prepare interrupt update register with the supplied parameters. */ @@ -1204,7 +1206,8 @@ static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, u32 rx_delay_interval, u32 tx_delay_interval, bool unmask, - bool no_moderation_update) + bool no_moderation_update, + bool lost_interrupt) { intr_reg->intr_control = 0; intr_reg->intr_control |= rx_delay_interval & @@ -1215,11 +1218,11 @@ static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK, ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT); - if (unmask) + if (likely(unmask && !lost_interrupt)) intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; intr_reg->intr_control |= - ENA_FIELD_PREP(((u32)no_moderation_update), + ENA_FIELD_PREP(((u32)(no_moderation_update && !lost_interrupt)), ENA_ETH_IO_INTR_REG_NO_MODERATION_UPDATE_MASK, ENA_ETH_IO_INTR_REG_NO_MODERATION_UPDATE_SHIFT); } diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c index b2d61c881b..656e25fbac 100644 --- a/drivers/net/ena/ena_ethdev.c +++ b/drivers/net/ena/ena_ethdev.c @@ -3939,7 +3939,7 @@ static void ena_rx_queue_intr_set(struct rte_eth_dev *dev, struct ena_ring *rxq = &adapter->rx_ring[queue_id]; struct ena_eth_io_intr_reg intr_reg; - ena_com_update_intr_reg(&intr_reg, 0, 0, unmask, 1); + ena_com_update_intr_reg(&intr_reg, 0, 0, unmask, 1, 0); ena_com_unmask_intr(rxq->ena_com_io_cq, &intr_reg); } -- 2.17.1
