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Message-Id: <200709280619.AA09134@fukuchi.jp.fujitsu.com>
Date: Fri, 28 Sep 2007 15:19:54 +0900
From: Masao Fukuchi <fukuchi.masao@...fujitsu.com>
To: Eric.Moore@....com, linux-kernel@...r.kernel.org,
linux-scsi@...r.kernel.org
Subject: [PATCH] PCI legacy I/O port free driver - Making fusion MPT driver
Hi,
This patch makes Fusion MPT driver legacy I/O port free.
The latest kernel has interface for PCI device drivers to tell the
kernel which resource the driver want to use.
I've made a patch which makes Fusion MPT driver legacy I/O port
free by using PCI core changes.
Fusion MPT driver basically doesn't use PCI legacy I/O port.
But some PCI card/controller still use PCI legacy I/O port for
download boot operation.
So, this driver assigns I/O port at download boot operation.
Thanks,
Masao Fukuchi
Signed-off-by: Masao Fukuchi <fukuchi.masao@...fujitsu.com>
diff -uarpN linux-2.6.23-rc5.org/drivers/message/fusion/mptbase.c linux-2.6.23-
rc5.new/drivers/message/fusion/mptbase.c
--- linux-2.6.23-rc5.org/drivers/message/fusion/mptbase.c 2007-09-01 15:08:24.000000000 +
0900
+++ linux-2.6.23-rc5.new/drivers/message/fusion/mptbase.c 2007-09-27 14:38:23.000000000 +
0900
@@ -1404,6 +1404,7 @@ mpt_attach(struct pci_dev *pdev, const s
u8 revision;
u8 pcixcmd;
static int mpt_ids = 0;
+ int bars;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *dent, *ent;
#endif
@@ -1418,7 +1419,10 @@ mpt_attach(struct pci_dev *pdev, const s
if (mpt_debug_level)
printk(KERN_INFO MYNAM ": mpt_debug_level=%xh\n", mpt_debug_level);
- if (pci_enable_device(pdev))
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ if (pci_enable_device_bars(pdev, bars))
+ return r;
+ if (pci_request_selected_regions(pdev, bars, "mpt"))
return r;
dinitprintk(ioc, printk(KERN_WARNING MYNAM ": mpt_adapter_install\n"));
@@ -1751,6 +1755,7 @@ mpt_resume(struct pci_dev *pdev)
u32 device_state = pdev->current_state;
int recovery_state;
int err;
+ int bars;
printk(MYIOC_s_INFO_FMT
"pci-resume: pdev=0x%p, slot=%s, Previous operating state [D%d]\n",
@@ -1758,7 +1763,8 @@ mpt_resume(struct pci_dev *pdev)
pci_set_power_state(pdev, 0);
pci_restore_state(pdev);
- err = pci_enable_device(pdev);
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ err = pci_enable_device_bars(pdev, bars);
if (err)
return err;
@@ -2838,6 +2844,7 @@ SendIocInit(MPT_ADAPTER *ioc, int sleepF
int r;
int count;
int cntdn;
+ int bars;
memset(&ioc_init, 0, sizeof(ioc_init));
memset(&init_reply, 0, sizeof(init_reply));
@@ -2849,9 +2856,17 @@ SendIocInit(MPT_ADAPTER *ioc, int sleepF
* then this pointer is not NULL. Skip the upload a second time.
* Set this flag if cached_fw set for either IOC.
*/
- if (ioc->facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT)
+ if (ioc->facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT) {
ioc->upload_fw = 1;
- else
+ /* re-enable with io */
+ pci_disable_device(ioc->pcidev);
+ bars = pci_select_bars(ioc->pcidev, IORESOURCE_MEM | IORESOURCE_IO);
+ if (pci_enable_device_bars(ioc->pcidev, bars))
+ return -ENODEV;
+ bars = pci_select_bars(ioc->pcidev, IORESOURCE_IO);
+ if (pci_request_selected_regions(ioc->pcidev, bars, "mpt"))
+ return -ENODEV;
+ } else
ioc->upload_fw = 0;
ddlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "upload_fw %d facts.Flags=%x\n",
ioc->name, ioc->upload_fw, ioc->facts.Flags));
-
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