diff options
Diffstat (limited to 'drivers/net/qlge')
-rw-r--r-- | drivers/net/qlge/qlge.h | 1 | ||||
-rw-r--r-- | drivers/net/qlge/qlge_main.c | 1 | ||||
-rw-r--r-- | drivers/net/qlge/qlge_mpi.c | 88 |
3 files changed, 62 insertions, 28 deletions
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 8b3c37afe80..2103fe6ff3a 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -1407,6 +1407,7 @@ struct ql_adapter { u32 mailbox_in; u32 mailbox_out; + struct mutex mpi_mutex; int tx_ring_size; int rx_ring_size; diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 655f3c4322e..b144b6becfe 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -3659,6 +3659,7 @@ static int __devinit ql_init_device(struct pci_dev *pdev, INIT_DELAYED_WORK(&qdev->asic_reset_work, ql_asic_reset_work); INIT_DELAYED_WORK(&qdev->mpi_reset_work, ql_mpi_reset_work); INIT_DELAYED_WORK(&qdev->mpi_work, ql_mpi_work); + mutex_init(&qdev->mpi_mutex); if (!cards_found) { dev_info(&pdev->dev, "%s\n", DRV_STRING); diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c index f9db78697e2..a4b810d0d3d 100644 --- a/drivers/net/qlge/qlge_mpi.c +++ b/drivers/net/qlge/qlge_mpi.c @@ -124,43 +124,75 @@ exit: ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT); } +/* Process an async event and clear it unless it's an + * error condition. + * This can get called iteratively from the mpi_work thread + * when events arrive via an interrupt. + * It also gets called when a mailbox command is polling for + * it's completion. */ +static int ql_mpi_handler(struct ql_adapter *qdev, struct mbox_params *mbcp) +{ + int status; + + /* Just get mailbox zero for now. */ + mbcp->out_count = 1; + status = ql_get_mb_sts(qdev, mbcp); + if (status) { + QPRINTK(qdev, DRV, ERR, + "Could not read MPI, resetting ASIC!\n"); + ql_queue_asic_error(qdev); + goto end; + } + + switch (mbcp->mbox_out[0]) { + + case AEN_LINK_UP: + ql_link_up(qdev, mbcp); + break; + + case AEN_LINK_DOWN: + ql_link_down(qdev, mbcp); + break; + + case AEN_FW_INIT_DONE: + ql_init_fw_done(qdev, mbcp); + break; + + case MB_CMD_STS_GOOD: + break; + + case AEN_FW_INIT_FAIL: + case AEN_SYS_ERR: + case MB_CMD_STS_ERR: + ql_queue_fw_error(qdev); + break; + + default: + QPRINTK(qdev, DRV, ERR, + "Unsupported AE %.08x.\n", mbcp->mbox_out[0]); + /* Clear the MPI firmware status. */ + } +end: + ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT); + return status; +} + void ql_mpi_work(struct work_struct *work) { struct ql_adapter *qdev = container_of(work, struct ql_adapter, mpi_work.work); struct mbox_params mbc; struct mbox_params *mbcp = &mbc; - mbcp->out_count = 1; - while (ql_read32(qdev, STS) & STS_PI) { - if (ql_get_mb_sts(qdev, mbcp)) { - QPRINTK(qdev, DRV, ERR, - "Could not read MPI, resetting ASIC!\n"); - ql_queue_asic_error(qdev); - } + mutex_lock(&qdev->mpi_mutex); - switch (mbcp->mbox_out[0]) { - case AEN_LINK_UP: - ql_link_up(qdev, mbcp); - break; - case AEN_LINK_DOWN: - ql_link_down(qdev, mbcp); - break; - case AEN_FW_INIT_DONE: - ql_init_fw_done(qdev, mbcp); - break; - case MB_CMD_STS_GOOD: - break; - case AEN_FW_INIT_FAIL: - case AEN_SYS_ERR: - case MB_CMD_STS_ERR: - ql_queue_fw_error(qdev); - default: - /* Clear the MPI firmware status. */ - ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT); - break; - } + while (ql_read32(qdev, STS) & STS_PI) { + memset(mbcp, 0, sizeof(struct mbox_params)); + mbcp->out_count = 1; + ql_mpi_handler(qdev, mbcp); } + + mutex_unlock(&qdev->mpi_mutex); ql_enable_completion_interrupt(qdev, 0); } |