@@ -160,7 +160,62 @@ static void ef100_ev_read_ack(struct efx_channel *channel)
static int ef100_ev_process(struct efx_channel *channel, int quota)
{
- return 0;
+ struct efx_nic *efx = channel->efx;
+ struct ef100_nic_data *nic_data;
+ bool evq_phase, old_evq_phase;
+ unsigned int read_ptr;
+ efx_qword_t *p_event;
+ int spent = 0;
+ bool ev_phase;
+ int ev_type;
+
+ if (unlikely(!channel->enabled))
+ return 0;
+
+ nic_data = efx->nic_data;
+ evq_phase = test_bit(channel->channel, nic_data->evq_phases);
+ old_evq_phase = evq_phase;
+ read_ptr = channel->eventq_read_ptr;
+ BUILD_BUG_ON(ESF_GZ_EV_RXPKTS_PHASE_LBN != ESF_GZ_EV_TXCMPL_PHASE_LBN);
+
+ while (spent < quota) {
+ p_event = efx_event(channel, read_ptr);
+
+ ev_phase = !!EFX_QWORD_FIELD(*p_event, ESF_GZ_EV_RXPKTS_PHASE);
+ if (ev_phase != evq_phase)
+ break;
+
+ netif_vdbg(efx, drv, efx->net_dev,
+ "processing event on %d " EFX_QWORD_FMT "\n",
+ channel->channel, EFX_QWORD_VAL(*p_event));
+
+ ev_type = EFX_QWORD_FIELD(*p_event, ESF_GZ_E_TYPE);
+
+ switch (ev_type) {
+ case ESE_GZ_EF100_EV_MCDI:
+ efx_mcdi_process_event(channel, p_event);
+ break;
+ case ESE_GZ_EF100_EV_DRIVER:
+ netif_info(efx, drv, efx->net_dev,
+ "Driver initiated event " EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*p_event));
+ break;
+ default:
+ netif_info(efx, drv, efx->net_dev,
+ "Unhandled event " EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*p_event));
+ }
+
+ ++read_ptr;
+ if ((read_ptr & channel->eventq_mask) == 0)
+ evq_phase = !evq_phase;
+ }
+
+ channel->eventq_read_ptr = read_ptr;
+ if (evq_phase != old_evq_phase)
+ change_bit(channel->channel, nic_data->evq_phases);
+
+ return spent;
}
static irqreturn_t ef100_msi_interrupt(int irq, void *dev_id)
Currently RX and TX-completion events are unhandled, as neither the RX nor the TX path has been implemented yet. Signed-off-by: Edward Cree <ecree@solarflare.com> --- drivers/net/ethernet/sfc/ef100_nic.c | 57 +++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-)