From 22be2e6e13ac09b20000582ac34d47fb0029a6da Mon Sep 17 00:00:00 2001 From: Asai Thambi S P <asamymuthupa@micron.com> Date: Fri, 23 Mar 2012 12:33:03 +0100 Subject: [PATCH] mtip32xx: fix incorrect value set for drv_cleanup_done, and re-initialize and start port in mtip_restart_port() This patch includes two changes: * fix incorrect value set for drv_cleanup_done * re-initialize and start port in mtip_restart_port() Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> Signed-off-by: Sam Bradshaw <sbradshaw@micron.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> --- drivers/block/mtip32xx/mtip32xx.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 8eb81c96608f..04f69e6da1fe 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -422,6 +422,10 @@ static void mtip_init_port(struct mtip_port *port) /* Clear any pending interrupts for this port */ writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT); + /* Clear any pending interrupts on the HBA. */ + writel(readl(port->dd->mmio + HOST_IRQ_STAT), + port->dd->mmio + HOST_IRQ_STAT); + /* Enable port interrupts */ writel(DEF_PORT_IRQ, port->mmio + PORT_IRQ_MASK); } @@ -490,11 +494,9 @@ static void mtip_restart_port(struct mtip_port *port) dev_warn(&port->dd->pdev->dev, "COM reset failed\n"); - /* Clear SError, the PxSERR.DIAG.x should be set so clear it */ - writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); + mtip_init_port(port); + mtip_start_port(port); - /* Enable the DMA engine */ - mtip_enable_engine(port, 1); } /* @@ -3359,9 +3361,6 @@ static int mtip_pci_probe(struct pci_dev *pdev, return -ENOMEM; } - /* Set the atomic variable as 1 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); - atomic_set(&dd->resumeflag, false); /* Attach the private data to this PCI device. */ @@ -3434,8 +3433,8 @@ iomap_err: pci_set_drvdata(pdev, NULL); return rv; done: - /* Set the atomic variable as 0 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); + /* Set the atomic variable as 0 */ + atomic_set(&dd->drv_cleanup_done, false); return rv; } @@ -3463,8 +3462,6 @@ static void mtip_pci_remove(struct pci_dev *pdev) } } } - /* Set the atomic variable as 1 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); /* Clean up the block layer. */ mtip_block_remove(dd);