From 6b6c1cd7da65225d61107bbe87495450cc0c5b11 Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Thu, 2 Apr 2015 15:25:54 +0200 Subject: [PATCH] hpsa: dont meddle with hw which isn't ours (cciss) The hpsa driver touches the hardware before checking the pci-id table. This way, especially in kdump, it may confuse the proper driver (cciss). Signed-off-by: Tomas Henzl Acked-by: Don Brace Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 8eab107b53fb..e9757cda3337 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -5733,7 +5733,7 @@ static int controller_reset_failed(struct CfgTable __iomem *cfgtable) /* This does a hard reset of the controller using PCI power management * states or the using the doorbell register. */ -static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev) +static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev, u32 board_id) { u64 cfg_offset; u32 cfg_base_addr; @@ -5744,7 +5744,6 @@ static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev) int rc; struct CfgTable __iomem *cfgtable; u32 use_doorbell; - u32 board_id; u16 command_register; /* For controllers as old as the P600, this is very nearly @@ -5760,11 +5759,6 @@ static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev) * using the doorbell register. */ - rc = hpsa_lookup_board_id(pdev, &board_id); - if (rc < 0) { - dev_warn(&pdev->dev, "Board ID not found\n"); - return rc; - } if (!ctlr_is_resettable(board_id)) { dev_warn(&pdev->dev, "Controller not resettable\n"); return -ENODEV; @@ -6346,7 +6340,7 @@ static void hpsa_hba_inquiry(struct ctlr_info *h) } } -static int hpsa_init_reset_devices(struct pci_dev *pdev) +static int hpsa_init_reset_devices(struct pci_dev *pdev, u32 board_id) { int rc, i; void __iomem *vaddr; @@ -6382,7 +6376,7 @@ static int hpsa_init_reset_devices(struct pci_dev *pdev) iounmap(vaddr); /* Reset the controller with a PCI power-cycle or via doorbell */ - rc = hpsa_kdump_hard_reset_controller(pdev); + rc = hpsa_kdump_hard_reset_controller(pdev, board_id); /* -ENOTSUPP here means we cannot reset the controller * but it's already (and still) up and running in @@ -6843,11 +6837,18 @@ static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) struct ctlr_info *h; int try_soft_reset = 0; unsigned long flags; + u32 board_id; if (number_of_controllers == 0) printk(KERN_INFO DRIVER_NAME "\n"); - rc = hpsa_init_reset_devices(pdev); + rc = hpsa_lookup_board_id(pdev, &board_id); + if (rc < 0) { + dev_warn(&pdev->dev, "Board ID not found\n"); + return rc; + } + + rc = hpsa_init_reset_devices(pdev, board_id); if (rc) { if (rc != -ENOTSUPP) return rc; -- 2.20.1