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sfc_ef100: process events for MCDI completions

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree 2020-07-27 12:58:02 +01:00 committed by David S. Miller
parent 965b549f3c
commit 5e4ef67346
1 changed files with 56 additions and 1 deletions
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57
drivers/net/ethernet/sfc/ef100_nic.c
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@ -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)