From: Edward Cree <ecree@solarflare.com>
To: <linux-net-drivers@solarflare.com>, <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>
Subject: [PATCH v2 net-next 10/16] sfc_ef100: process events for MCDI completions
Date: Mon, 13 Jul 2020 12:34:40 +0100 [thread overview]
Message-ID: <0905b185-c321-6c48-0cf7-d32fcc3554ef@solarflare.com> (raw)
In-Reply-To: <dbd87499-161e-09f3-7dec-8b7c13ad02dd@solarflare.com>
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(-)
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index f62f3be1238b..d415d25e532a 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -163,7 +163,62 @@ void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev) {}
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)
next prev parent reply other threads:[~2020-07-13 11:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 11:27 [PATCH v2 net-next 00/16] sfc_ef100: driver for EF100 family NICs, part 1 Edward Cree
2020-07-13 11:29 ` [PATCH v2 net-next 01/16] sfc: remove efx_ethtool_nway_reset() Edward Cree
2020-07-13 11:30 ` [PATCH v2 net-next 02/16] sfc_ef100: add EF100 register definitions Edward Cree
2020-07-13 11:31 ` [PATCH v2 net-next 03/16] sfc_ef100: register accesses on EF100 Edward Cree
2020-07-13 11:32 ` [PATCH v2 net-next 04/16] sfc_ef100: skeleton EF100 PF driver Edward Cree
2020-07-13 23:02 ` Jakub Kicinski
2020-07-14 9:02 ` Edward Cree
2020-07-14 16:33 ` Jakub Kicinski
2020-07-13 23:07 ` Jakub Kicinski
2020-07-13 23:08 ` Jakub Kicinski
2020-07-13 11:32 ` [PATCH v2 net-next 05/16] sfc_ef100: reset-handling stub Edward Cree
2020-07-13 11:32 ` [PATCH v2 net-next 06/16] sfc_ef100: PHY probe stub Edward Cree
2020-07-13 11:33 ` [PATCH v2 net-next 07/16] sfc_ef100: don't call efx_reset_down()/up() on EF100 Edward Cree
2020-07-13 11:33 ` [PATCH v2 net-next 08/16] sfc_ef100: implement MCDI transport Edward Cree
2020-07-13 11:34 ` [PATCH v2 net-next 09/16] sfc_ef100: implement ndo_open/close and EVQ probing Edward Cree
2020-07-13 11:34 ` Edward Cree [this message]
2020-07-13 11:35 ` [PATCH v2 net-next 11/16] sfc_ef100: read datapath caps, implement check_caps Edward Cree
2020-07-13 11:35 ` [PATCH v2 net-next 12/16] sfc_ef100: extend ef100_check_caps to cover datapath_caps3 Edward Cree
2020-07-13 11:36 ` [PATCH v2 net-next 13/16] sfc_ef100: actually perform resets Edward Cree
2020-07-13 11:36 ` [PATCH v2 net-next 14/16] sfc_ef100: probe the PHY and configure the MAC Edward Cree
2020-07-13 11:37 ` [PATCH v2 net-next 15/16] sfc_ef100: read device MAC address at probe time Edward Cree
2020-07-13 11:37 ` [PATCH v2 net-next 16/16] sfc_ef100: implement ndo_get_phys_port_{id,name} Edward Cree
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