sfc: Allow DRV_GEN events to be used outside of selftests
Formerly, efx_test_eventq_irq() assumed it was the only user of
driver generated events. Allow it to interoperate with other users.
We can create more than 16 channels, so align event codes with
a multiple of 256 not 16.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c
index ec0bb80..ca9cf1a 100644
--- a/drivers/net/sfc/nic.c
+++ b/drivers/net/sfc/nic.c
@@ -79,6 +79,10 @@
/* Depth of RX flush request fifo */
#define EFX_RX_FLUSH_COUNT 4
+/* Magic value for efx_generate_test_event() */
+#define EFX_CHANNEL_MAGIC(_channel) \
+ (0x00010100 + (_channel)->channel)
+
/**************************************************************************
*
* Solarstorm hardware access
@@ -993,8 +997,10 @@
}
break;
case FSE_AZ_EV_CODE_DRV_GEN_EV:
- channel->eventq_magic = EFX_QWORD_FIELD(
- event, FSF_AZ_DRV_GEN_EV_MAGIC);
+ if (EFX_QWORD_FIELD(event, FSF_AZ_DRV_GEN_EV_MAGIC)
+ == EFX_CHANNEL_MAGIC(channel))
+ ++channel->magic_count;
+
EFX_LOG(channel->efx, "channel %d received generated "
"event "EFX_QWORD_FMT"\n", channel->channel,
EFX_QWORD_VAL(event));
@@ -1088,12 +1094,9 @@
}
-/* Generates a test event on the event queue. A subsequent call to
- * process_eventq() should pick up the event and place the value of
- * "magic" into channel->eventq_magic;
- */
-void efx_nic_generate_test_event(struct efx_channel *channel, unsigned int magic)
+void efx_nic_generate_test_event(struct efx_channel *channel)
{
+ unsigned int magic = EFX_CHANNEL_MAGIC(channel);
efx_qword_t test_event;
EFX_POPULATE_QWORD_2(test_event, FSF_AZ_EV_CODE,