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PCI/switchtec: Factor out Gen3 ioctl_flash_part_info()

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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>
This commit is contained in:
Logan Gunthorpe 2020-01-14 20:56:44 -07:00 committed by Bjorn Helgaas
parent b13313a01a
commit 6a3d1b542c
1 changed files with 42 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/pci/switch/switchtec.c
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@ -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;