From 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Wed, 8 Mar 2017 23:13:28 -0800 Subject: Upgrade to 4.4.50-rt62 The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it to 4.4.50-rt62. The command to achieve it is: a) Clone a git repo from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git b) Get the diff between this two changesets: git diff 640eca2901f3435e616157b11379d3223a44b391 705619beeea1b0b48219a683fd1a901a86fdaf5e where the two commits are: [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 640eca2901f3435e616157b11379d3223a44b391 640eca2901f3 v4.4.6-rt14 localversion-rt [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 705619beeea1b0b48219a683fd1a901a86fdaf5e 705619beeea1 Linux 4.4.50-rt62 localversion-rt c) One patch has been backported thus revert the patch before applying. filterdiff -p1 -x scripts/package/Makefile ~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run Upstream status: backport Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01 Signed-off-by: Yunhong Jiang --- kernel/drivers/scsi/aacraid/comminit.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'kernel/drivers/scsi/aacraid/comminit.c') diff --git a/kernel/drivers/scsi/aacraid/comminit.c b/kernel/drivers/scsi/aacraid/comminit.c index 0e954e37f..26d38b1a4 100644 --- a/kernel/drivers/scsi/aacraid/comminit.c +++ b/kernel/drivers/scsi/aacraid/comminit.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include #include @@ -47,6 +48,24 @@ struct aac_common aac_config = { .irq_mod = 1 }; +static inline int aac_is_msix_mode(struct aac_dev *dev) +{ + u32 status = 0; + + if (dev->pdev->device == PMC_DEVICE_S6 || + dev->pdev->device == PMC_DEVICE_S7 || + dev->pdev->device == PMC_DEVICE_S8) { + status = src_readl(dev, MUnit.OMR); + } + return (status & AAC_INT_MODE_MSIX); +} + +static inline void aac_change_to_intx(struct aac_dev *dev) +{ + aac_src_access_devreg(dev, AAC_DISABLE_MSIX); + aac_src_access_devreg(dev, AAC_ENABLE_INTX); +} + static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) { unsigned char *base; @@ -425,6 +444,15 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) dev->comm_interface = AAC_COMM_PRODUCER; dev->raw_io_interface = dev->raw_io_64 = 0; + + /* + * Enable INTX mode, if not done already Enabled + */ + if (aac_is_msix_mode(dev)) { + aac_change_to_intx(dev); + dev_info(&dev->pdev->dev, "Changed firmware to INTX mode"); + } + if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, NULL)) && -- cgit 1.2.3-korg