diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2020-01-15 06:56:44 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-01-15 20:00:37 +0300 |
| commit | 6a3d1b542cfafe6241d4de11800d639c9bf69f29 (patch) | |
| tree | a2b19bf9d3037a417663e097a2615d458d17713d /drivers/pci/switch | |
| parent | b13313a01a6a607bd92268822d498d5c7356ca71 (diff) | |
| download | linux-6a3d1b542cfafe6241d4de11800d639c9bf69f29.tar.xz | |
PCI/switchtec: Factor out Gen3 ioctl_flash_part_info()
Refactor ioctl_flash_part_info() into a Gen3-specific function because the
registers for flash partition information have changed significantly in
Gen4 and will require a completely different implementation.
No functional changes intended.
Co-developed-by: Kelvin Cao <kelvin.cao@microchip.com>
Link: https://lore.kernel.org/r/20200115035648.2578-4-logang@deltatee.com
Signed-off-by: Kelvin Cao <kelvin.cao@microchip.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/switch')
| -rw-r--r-- | drivers/pci/switch/switchtec.c | 68 |
1 files changed, 42 insertions, 26 deletions
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index 8302524734f0..0ae444517790 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -606,75 +606,91 @@ static void set_fw_info_part(struct switchtec_ioctl_flash_part_info *info, info->length = ioread32(&pi->length); } -static int ioctl_flash_part_info(struct switchtec_dev *stdev, - struct switchtec_ioctl_flash_part_info __user *uinfo) +static int flash_part_info_gen3(struct switchtec_dev *stdev, + struct switchtec_ioctl_flash_part_info *info) { - struct switchtec_ioctl_flash_part_info info = {0}; struct flash_info_regs __iomem *fi = stdev->mmio_flash_info; struct sys_info_regs __iomem *si = stdev->mmio_sys_info; u32 active_addr = -1; - if (copy_from_user(&info, uinfo, sizeof(info))) - return -EFAULT; - - switch (info.flash_partition) { + switch (info->flash_partition) { case SWITCHTEC_IOCTL_PART_CFG0: active_addr = ioread32(&fi->active_cfg); - set_fw_info_part(&info, &fi->cfg0); + set_fw_info_part(info, &fi->cfg0); if (ioread16(&si->cfg_running) == SWITCHTEC_GEN3_CFG0_RUNNING) - info.active |= SWITCHTEC_IOCTL_PART_RUNNING; + info->active |= SWITCHTEC_IOCTL_PART_RUNNING; break; case SWITCHTEC_IOCTL_PART_CFG1: active_addr = ioread32(&fi->active_cfg); - set_fw_info_part(&info, &fi->cfg1); + set_fw_info_part(info, &fi->cfg1); if (ioread16(&si->cfg_running) == SWITCHTEC_GEN3_CFG1_RUNNING) - info.active |= SWITCHTEC_IOCTL_PART_RUNNING; + info->active |= SWITCHTEC_IOCTL_PART_RUNNING; break; case SWITCHTEC_IOCTL_PART_IMG0: active_addr = ioread32(&fi->active_img); - set_fw_info_part(&info, &fi->img0); + set_fw_info_part(info, &fi->img0); if (ioread16(&si->img_running) == SWITCHTEC_GEN3_IMG0_RUNNING) - info.active |= SWITCHTEC_IOCTL_PART_RUNNING; + info->active |= SWITCHTEC_IOCTL_PART_RUNNING; break; case SWITCHTEC_IOCTL_PART_IMG1: active_addr = ioread32(&fi->active_img); - set_fw_info_part(&info, &fi->img1); + set_fw_info_part(info, &fi->img1); if (ioread16(&si->img_running) == SWITCHTEC_GEN3_IMG1_RUNNING) - info.active |= SWITCHTEC_IOCTL_PART_RUNNING; + info->active |= SWITCHTEC_IOCTL_PART_RUNNING; break; case SWITCHTEC_IOCTL_PART_NVLOG: - set_fw_info_part(&info, &fi->nvlog); + set_fw_info_part(info, &fi->nvlog); break; case SWITCHTEC_IOCTL_PART_VENDOR0: - set_fw_info_part(&info, &fi->vendor[0]); + set_fw_info_part(info, &fi->vendor[0]); break; case SWITCHTEC_IOCTL_PART_VENDOR1: - set_fw_info_part(&info, &fi->vendor[1]); + set_fw_info_part(info, &fi->vendor[1]); break; case SWITCHTEC_IOCTL_PART_VENDOR2: - set_fw_info_part(&info, &fi->vendor[2]); + set_fw_info_part(info, &fi->vendor[2]); break; case SWITCHTEC_IOCTL_PART_VENDOR3: - set_fw_info_part(&info, &fi->vendor[3]); + set_fw_info_part(info, &fi->vendor[3]); break; case SWITCHTEC_IOCTL_PART_VENDOR4: - set_fw_info_part(&info, &fi->vendor[4]); + set_fw_info_part(info, &fi->vendor[4]); break; case SWITCHTEC_IOCTL_PART_VENDOR5: - set_fw_info_part(&info, &fi->vendor[5]); + set_fw_info_part(info, &fi->vendor[5]); break; case SWITCHTEC_IOCTL_PART_VENDOR6: - set_fw_info_part(&info, &fi->vendor[6]); + set_fw_info_part(info, &fi->vendor[6]); break; case SWITCHTEC_IOCTL_PART_VENDOR7: - set_fw_info_part(&info, &fi->vendor[7]); + set_fw_info_part(info, &fi->vendor[7]); break; default: return -EINVAL; } - if (info.address == active_addr) - info.active |= SWITCHTEC_IOCTL_PART_ACTIVE; + if (info->address == active_addr) + info->active |= SWITCHTEC_IOCTL_PART_ACTIVE; + + return 0; +} + +static int ioctl_flash_part_info(struct switchtec_dev *stdev, + struct switchtec_ioctl_flash_part_info __user *uinfo) +{ + int ret; + struct switchtec_ioctl_flash_part_info info = {0}; + + if (copy_from_user(&info, uinfo, sizeof(info))) + return -EFAULT; + + if (stdev->gen == SWITCHTEC_GEN3) { + ret = flash_part_info_gen3(stdev, &info); + if (ret) + return ret; + } else { + return -ENOTSUPP; + } if (copy_to_user(uinfo, &info, sizeof(info))) return -EFAULT; |