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cxgbe(4): Read the MFG diags version from the VPD and make it available

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in the sysctl MIB.

MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2017-12-21 15:19:43 +00:00
parent 5e6e2d38c1
commit 426b6bd53c
3 changed files with 50 additions and 24 deletions
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4
sys/dev/cxgbe/common/common.h
View File

@ -44,6 +44,7 @@ enum {
EC_LEN = 16, /* E/C length */
ID_LEN = 16, /* ID length */
PN_LEN = 16, /* Part Number length */
MD_LEN = 16, /* MFG diags version length */
MACADDR_LEN = 12, /* MAC Address length */
};
@ -258,6 +259,7 @@ struct vpd_params {
u8 id[ID_LEN + 1];
u8 pn[PN_LEN + 1];
u8 na[MACADDR_LEN + 1];
u8 md[MD_LEN + 1];
};
struct pci_params {
@ -590,7 +592,7 @@ int t4_get_vpd_version(struct adapter *adapter, u32 *vers);
int t4_get_version_info(struct adapter *adapter);
int t4_init_hw(struct adapter *adapter, u32 fw_params);
const struct chip_params *t4_get_chip_params(int chipid);
int t4_prep_adapter(struct adapter *adapter, u8 *buf);
int t4_prep_adapter(struct adapter *adapter, u32 *buf);
int t4_shutdown_adapter(struct adapter *adapter);
int t4_init_devlog_params(struct adapter *adapter, int fw_attach);
int t4_init_sge_params(struct adapter *adapter);

65
sys/dev/cxgbe/common/t4_hw.c
View File

@ -2664,13 +2664,16 @@ void t4_get_regs(struct adapter *adap, u8 *buf, size_t buf_size)
}
/*
* Partial EEPROM Vital Product Data structure. Includes only the ID and
* VPD-R sections.
* Partial EEPROM Vital Product Data structure. The VPD starts with one ID
* header followed by one or more VPD-R sections, each with its own header.
*/
struct t4_vpd_hdr {
u8 id_tag;
u8 id_len[2];
u8 id_data[ID_LEN];
};
struct t4_vpdr_hdr {
u8 vpdr_tag;
u8 vpdr_len[2];
};
@ -2905,32 +2908,43 @@ int t4_seeprom_wp(struct adapter *adapter, int enable)
/**
* get_vpd_keyword_val - Locates an information field keyword in the VPD
* @v: Pointer to buffered vpd data structure
* @vpd: Pointer to buffered vpd data structure
* @kw: The keyword to search for
* @region: VPD region to search (starting from 0)
*
* Returns the value of the information field keyword or
* -ENOENT otherwise.
*/
static int get_vpd_keyword_val(const struct t4_vpd_hdr *v, const char *kw)
static int get_vpd_keyword_val(const u8 *vpd, const char *kw, int region)
{
int i;
unsigned int offset , len;
const u8 *buf = (const u8 *)v;
const u8 *vpdr_len = &v->vpdr_len[0];
offset = sizeof(struct t4_vpd_hdr);
len = (u16)vpdr_len[0] + ((u16)vpdr_len[1] << 8);
int i, tag;
unsigned int offset, len;
const struct t4_vpdr_hdr *vpdr;
if (len + sizeof(struct t4_vpd_hdr) > VPD_LEN) {
offset = sizeof(struct t4_vpd_hdr);
vpdr = (const void *)(vpd + offset);
tag = vpdr->vpdr_tag;
len = (u16)vpdr->vpdr_len[0] + ((u16)vpdr->vpdr_len[1] << 8);
while (region--) {
offset += sizeof(struct t4_vpdr_hdr) + len;
vpdr = (const void *)(vpd + offset);
if (++tag != vpdr->vpdr_tag)
return -ENOENT;
len = (u16)vpdr->vpdr_len[0] + ((u16)vpdr->vpdr_len[1] << 8);
}
offset += sizeof(struct t4_vpdr_hdr);
if (offset + len > VPD_LEN) {
return -ENOENT;
}
for (i = offset; i + VPD_INFO_FLD_HDR_SIZE <= offset + len;) {
if(memcmp(buf + i , kw , 2) == 0){
if (memcmp(vpd + i , kw , 2) == 0){
i += VPD_INFO_FLD_HDR_SIZE;
return i;
}
i += VPD_INFO_FLD_HDR_SIZE + buf[i+2];
i += VPD_INFO_FLD_HDR_SIZE + vpd[i+2];
}
return -ENOENT;
@ -2946,18 +2960,18 @@ static int get_vpd_keyword_val(const struct t4_vpd_hdr *v, const char *kw)
* Reads card parameters stored in VPD EEPROM.
*/
static int get_vpd_params(struct adapter *adapter, struct vpd_params *p,
u8 *vpd)
u32 *buf)
{
int i, ret, addr;
int ec, sn, pn, na;
int ec, sn, pn, na, md;
u8 csum;
const struct t4_vpd_hdr *v;
const u8 *vpd = (const u8 *)buf;
/*
* Card information normally starts at VPD_BASE but early cards had
* it at 0.
*/
ret = t4_seeprom_read(adapter, VPD_BASE, (u32 *)(vpd));
ret = t4_seeprom_read(adapter, VPD_BASE, buf);
if (ret)
return (ret);
@ -2971,14 +2985,13 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p,
addr = *vpd == CHELSIO_VPD_UNIQUE_ID ? VPD_BASE : VPD_BASE_OLD;
for (i = 0; i < VPD_LEN; i += 4) {
ret = t4_seeprom_read(adapter, addr + i, (u32 *)(vpd + i));
ret = t4_seeprom_read(adapter, addr + i, buf++);
if (ret)
return ret;
}
v = (const struct t4_vpd_hdr *)vpd;
#define FIND_VPD_KW(var,name) do { \
var = get_vpd_keyword_val(v , name); \
var = get_vpd_keyword_val(vpd, name, 0); \
if (var < 0) { \
CH_ERR(adapter, "missing VPD keyword " name "\n"); \
return -EINVAL; \
@ -3001,7 +3014,7 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p,
FIND_VPD_KW(na, "NA");
#undef FIND_VPD_KW
memcpy(p->id, v->id_data, ID_LEN);
memcpy(p->id, vpd + offsetof(struct t4_vpd_hdr, id_data), ID_LEN);
strstrip(p->id);
memcpy(p->ec, vpd + ec, EC_LEN);
strstrip(p->ec);
@ -3015,6 +3028,14 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p,
memcpy(p->na, vpd + na, min(i, MACADDR_LEN));
strstrip((char *)p->na);
md = get_vpd_keyword_val(vpd, "VF", 1);
if (md < 0) {
snprintf(p->md, sizeof(p->md), "unknown");
} else {
i = vpd[md - VPD_INFO_FLD_HDR_SIZE + 2];
memcpy(p->md, vpd + md, min(i, MD_LEN));
}
return 0;
}
@ -7997,7 +8018,7 @@ const struct chip_params *t4_get_chip_params(int chipid)
* values for some adapter tunables, take PHYs out of reset, and
* initialize the MDIO interface.
*/
int t4_prep_adapter(struct adapter *adapter, u8 *buf)
int t4_prep_adapter(struct adapter *adapter, u32 *buf)
{
int ret;
uint16_t device_id;

5
sys/dev/cxgbe/t4_main.c
View File

@ -836,7 +836,7 @@ t4_attach(device_t dev)
struct make_dev_args mda;
struct intrs_and_queues iaq;
struct sge *s;
uint8_t *buf;
uint32_t *buf;
#ifdef TCP_OFFLOAD
int ofld_rqidx, ofld_tqidx;
#endif
@ -5127,6 +5127,9 @@ t4_sysctls(struct adapter *sc)
SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "ec",
CTLFLAG_RD, sc->params.vpd.ec, 0, "engineering change");
SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "md_version",
CTLFLAG_RD, sc->params.vpd.md, 0, "manufacturing diags version");
SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "na",
CTLFLAG_RD, sc->params.vpd.na, 0, "network address");