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authorSebastian Ott <sebott@linux.vnet.ibm.com>2014-04-16 18:12:05 +0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-05-20 10:58:50 +0400
commitac4995b9d5705f10a69ea74d440e3943db41f2ca (patch)
tree2d346083802c68ab66ab6a0a81c86a1d68d8e781
parent93065d045a99391c60fa9ab8aca6b503f51b2e95 (diff)
downloadlinux-ac4995b9d5705f10a69ea74d440e3943db41f2ca.tar.xz
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>
-rw-r--r--arch/s390/include/asm/pci.h6
-rw-r--r--arch/s390/include/asm/pci_clp.h10
-rw-r--r--arch/s390/pci/pci_clp.c10
-rw-r--r--arch/s390/pci/pci_sysfs.c42
4 files changed, 65 insertions, 3 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 79b5f0783a30..c030900320e0 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -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 */
diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h
index d31d739f8689..dd78f92f1cce 100644
--- a/arch/s390/include/asm/pci_clp.h
+++ b/arch/s390/include/asm/pci_clp.h
@@ -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;
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index c747394029ee..96545d7659fd 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -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;
}
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index f23da1c0a489..9190214b8702 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -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,
+};
+
+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,
};