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s390/pci: add some new arch specific pci attributes 

Add a bunch of s390 specific pci attributes to help
identifying pci functions.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2014-04-16 16:12:05 +02:00 committed by Martin Schwidefsky
parent 93065d045a
commit ac4995b9d5
4 changed files with 67 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/s390/include/asm/pci.h
View File

@ -78,10 +78,16 @@ struct zpci_dev {
enum zpci_state state;
u32 fid; /* function ID, used by sclp */
u32 fh; /* function handle, used by insn's */
u16 vfn; /* virtual function number */
u16 pchid; /* physical channel ID */
u8 pfgid; /* function group ID */
u8 pft; /* pci function type */
u16 domain;
u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
u32 uid; /* user defined id */
u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */
/* IRQ stuff */
u64 msi_addr; /* MSI address */
struct airq_iv *aibv; /* adapter interrupt bit vector */

10
arch/s390/include/asm/pci_clp.h
View File

@ -44,6 +44,7 @@ struct clp_fh_list_entry {
#define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */
#define CLP_UTIL_STR_LEN 64
#define CLP_PFIP_NR_SEGMENTS 4
/* List PCI functions request */
struct clp_req_list_pci {
@ -85,7 +86,7 @@ struct clp_rsp_query_pci {
struct clp_rsp_hdr hdr;
u32 fmt : 4; /* cmd request block format */
u32 : 28;
u64 reserved1;
u64 : 64;
u16 vfn; /* virtual fn number */
u16 : 7;
u16 util_str_avail : 1; /* utility string available? */
@ -94,10 +95,13 @@ struct clp_rsp_query_pci {
u8 bar_size[PCI_BAR_COUNT];
u16 pchid;
u32 bar[PCI_BAR_COUNT];
u64 reserved2;
u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
u32 : 24;
u8 pft; /* pci function type */
u64 sdma; /* start dma as */
u64 edma; /* end dma as */
u64 reserved3[6];
u32 reserved[11];
u32 uid; /* user defined id */
u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */
} __packed;

10
arch/s390/pci/pci_clp.c
View File

@ -114,6 +114,16 @@ static int clp_store_query_pci_fn(struct zpci_dev *zdev,
zdev->end_dma = response->edma;
zdev->pchid = response->pchid;
zdev->pfgid = response->pfgid;
zdev->pft = response->pft;
zdev->vfn = response->vfn;
zdev->uid = response->uid;
memcpy(zdev->pfip, response->pfip, sizeof(zdev->pfip));
if (response->util_str_avail) {
memcpy(zdev->util_str, response->util_str,
sizeof(zdev->util_str));
}
return 0;
}

46
arch/s390/pci/pci_sysfs.c
View File

@ -26,6 +26,13 @@ zpci_attr(function_id, "0x%08x\n", fid);
zpci_attr(function_handle, "0x%08x\n", fh);
zpci_attr(pchid, "0x%04x\n", pchid);
zpci_attr(pfgid, "0x%02x\n", pfgid);
zpci_attr(vfn, "0x%04x\n", vfn);
zpci_attr(pft, "0x%02x\n", pft);
zpci_attr(uid, "0x%x\n", uid);
zpci_attr(segment0, "0x%02x\n", pfip[0]);
zpci_attr(segment1, "0x%02x\n", pfip[1]);
zpci_attr(segment2, "0x%02x\n", pfip[2]);
zpci_attr(segment3, "0x%02x\n", pfip[3]);
static ssize_t recover_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@ -51,18 +58,53 @@ static ssize_t recover_store(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR_WO(recover);
static ssize_t util_string_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj);
struct pci_dev *pdev = to_pci_dev(dev);
struct zpci_dev *zdev = get_zdev(pdev);
return memory_read_from_buffer(buf, count, &off, zdev->util_str,
sizeof(zdev->util_str));
}
static BIN_ATTR_RO(util_string, CLP_UTIL_STR_LEN);
static struct bin_attribute *zpci_bin_attrs[] = {
&bin_attr_util_string,
NULL,
};
static struct attribute *zpci_dev_attrs[] = {
&dev_attr_function_id.attr,
&dev_attr_function_handle.attr,
&dev_attr_pchid.attr,
&dev_attr_pfgid.attr,
&dev_attr_pft.attr,
&dev_attr_vfn.attr,
&dev_attr_uid.attr,
&dev_attr_recover.attr,
NULL,
};
static struct attribute_group zpci_attr_group = {
.attrs = zpci_dev_attrs,
.bin_attrs = zpci_bin_attrs,
};
const struct attribute_group *zpci_attr_groups[] = {
&zpci_attr_group,
static struct attribute *pfip_attrs[] = {
&dev_attr_segment0.attr,
&dev_attr_segment1.attr,
&dev_attr_segment2.attr,
&dev_attr_segment3.attr,
NULL,
};
static struct attribute_group pfip_attr_group = {
.name = "pfip",
.attrs = pfip_attrs,
};
const struct attribute_group *zpci_attr_groups[] = {
&zpci_attr_group,
&pfip_attr_group,
NULL,
};