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qca_spi: Fix reset behavior 

[ Upstream commit 1057812d14 ]

In case of a reset triggered by the QCA7000 itself, the behavior of the
qca_spi driver was not quite correct:
- in case of a pending RX frame decoding the drop counter must be
  incremented and decoding state machine reseted
- also the reset counter must always be incremented regardless of sync
  state

Fixes: 291ab06ecf ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20231206141222.52029-4-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Stefan Wahren 2023-12-06 15:12:22 +01:00 committed by Greg Kroah-Hartman
parent 2a765dc4a7
commit eebab1f60a
1 changed files with 7 additions and 1 deletions
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8
drivers/net/ethernet/qualcomm/qca_spi.c
View File

@ -592,11 +592,17 @@ qcaspi_spi_thread(void *data)
if (intr_cause & SPI_INT_CPU_ON) {
qcaspi_qca7k_sync(qca, QCASPI_EVENT_CPUON);
/* Frame decoding in progress */
if (qca->frm_handle.state != qca->frm_handle.init)
qca->net_dev->stats.rx_dropped++;
qcafrm_fsm_init_spi(&qca->frm_handle);
qca->stats.device_reset++;
/* not synced. */
if (qca->sync != QCASPI_SYNC_READY)
continue;
qca->stats.device_reset++;
netif_wake_queue(qca->net_dev);
netif_carrier_on(qca->net_dev);
}