diff options
Diffstat (limited to 'drivers/net/ethernet/qualcomm/qca_spi.c')
| -rw-r--r-- | drivers/net/ethernet/qualcomm/qca_spi.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c index 8f7ce6b51a1c..ef9c02b000e4 100644 --- a/drivers/net/ethernet/qualcomm/qca_spi.c +++ b/drivers/net/ethernet/qualcomm/qca_spi.c @@ -35,7 +35,8 @@ #define MAX_DMA_BURST_LEN 5000 -#define SPI_INTR 0 +#define SPI_INTR 0 +#define SPI_RESET 1 /* Modules parameters */ #define QCASPI_CLK_SPEED_MIN 1000000 @@ -495,7 +496,7 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event) if (qca->sync == QCASPI_SYNC_READY) qca->stats.bad_signature++; - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); netdev_dbg(qca->net_dev, "sync: got CPU on, but signature was invalid, restart\n"); return; } else { @@ -505,12 +506,17 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event) if (wrbuf_space != QCASPI_HW_BUF_LEN) { netdev_dbg(qca->net_dev, "sync: got CPU on, but wrbuf not empty. reset!\n"); qca->sync = QCASPI_SYNC_UNKNOWN; + qca->stats.buf_avail_err++; } else { netdev_dbg(qca->net_dev, "sync: got CPU on, now in sync\n"); qca->sync = QCASPI_SYNC_READY; return; } } + } else { + /* Handle reset only on QCASPI_EVENT_UPDATE */ + if (test_and_clear_bit(SPI_RESET, &qca->flags)) + qca->sync = QCASPI_SYNC_UNKNOWN; } switch (qca->sync) { @@ -521,7 +527,7 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event) qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature); if (signature != QCASPI_GOOD_SIGNATURE) { - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); qca->stats.bad_signature++; netdev_dbg(qca->net_dev, "sync: bad signature, restart\n"); /* don't reset right away */ @@ -552,7 +558,7 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event) qca->reset_count); if (qca->reset_count >= QCASPI_RESET_TIMEOUT) { /* reset did not seem to take place, try again */ - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); qca->stats.reset_timeout++; netdev_dbg(qca->net_dev, "sync: reset timeout, restarting process.\n"); } @@ -581,14 +587,14 @@ qcaspi_spi_thread(void *data) continue; } - if (!test_bit(SPI_INTR, &qca->intr) && + if (!qca->flags && !qca->txr.skb[qca->txr.head]) schedule(); set_current_state(TASK_RUNNING); netdev_dbg(qca->net_dev, "have work to do. int: %lu, tx_skb: %p\n", - qca->intr, + qca->flags, qca->txr.skb[qca->txr.head]); qcaspi_qca7k_sync(qca, QCASPI_EVENT_UPDATE); @@ -602,7 +608,7 @@ qcaspi_spi_thread(void *data) msleep(QCASPI_QCA7K_REBOOT_TIME_MS); } - if (test_and_clear_bit(SPI_INTR, &qca->intr)) { + if (test_and_clear_bit(SPI_INTR, &qca->flags)) { start_spi_intr_handling(qca, &intr_cause); if (intr_cause & SPI_INT_CPU_ON) { @@ -627,7 +633,7 @@ qcaspi_spi_thread(void *data) /* restart sync */ netdev_dbg(qca->net_dev, "===> rdbuf error!\n"); qca->stats.read_buf_err++; - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); continue; } @@ -635,7 +641,7 @@ qcaspi_spi_thread(void *data) /* restart sync */ netdev_dbg(qca->net_dev, "===> wrbuf error!\n"); qca->stats.write_buf_err++; - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); continue; } @@ -664,7 +670,7 @@ qcaspi_intr_handler(int irq, void *data) { struct qcaspi *qca = data; - set_bit(SPI_INTR, &qca->intr); + set_bit(SPI_INTR, &qca->flags); if (qca->spi_thread) wake_up_process(qca->spi_thread); @@ -680,7 +686,7 @@ qcaspi_netdev_open(struct net_device *dev) if (!qca) return -EINVAL; - set_bit(SPI_INTR, &qca->intr); + set_bit(SPI_INTR, &qca->flags); qca->sync = QCASPI_SYNC_UNKNOWN; qcafrm_fsm_init_spi(&qca->frm_handle); @@ -799,7 +805,7 @@ qcaspi_netdev_tx_timeout(struct net_device *dev, unsigned int txqueue) jiffies, jiffies - dev_trans_start(dev)); qca->net_dev->stats.tx_errors++; /* Trigger tx queue flush and QCA7000 reset */ - qca->sync = QCASPI_SYNC_UNKNOWN; + set_bit(SPI_RESET, &qca->flags); if (qca->spi_thread) wake_up_process(qca->spi_thread); |