diff options
author | Jakub Kicinski <kuba@kernel.org> | 2021-09-16 13:58:38 -0700 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2021-09-16 13:58:38 -0700 |
commit | 561bed688bffedd6bbdfa70af7a4f64f0a3e2140 (patch) | |
tree | 19256b7a70dcdb9a95c4a7494a0b8bb9db10ef30 /drivers/net/ethernet/chelsio | |
parent | 4b5a3ab17c6c942bd428984b6b37fe3c07f18ab3 (diff) | |
parent | fc0c0548c1a2e676d3a928aaed70f2d4d254e395 (diff) | |
download | linux-561bed688bffedd6bbdfa70af7a4f64f0a3e2140.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts!
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 2 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 85 |
2 files changed, 31 insertions, 56 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 9058f09f921e..ecea3cdd30b3 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -84,7 +84,6 @@ extern struct mutex uld_mutex; enum { MAX_NPORTS = 4, /* max # of ports */ SERNUM_LEN = 24, /* Serial # length */ - EC_LEN = 16, /* E/C length */ ID_LEN = 16, /* ID length */ PN_LEN = 16, /* Part Number length */ MACADDR_LEN = 12, /* MAC Address length */ @@ -391,7 +390,6 @@ struct tp_params { struct vpd_params { unsigned int cclk; - u8 ec[EC_LEN + 1]; u8 sn[SERNUM_LEN + 1]; u8 id[ID_LEN + 1]; u8 pn[PN_LEN + 1]; diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 6606fb8b3e42..64144b6171d7 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2743,10 +2743,9 @@ int t4_seeprom_wp(struct adapter *adapter, bool enable) */ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p) { - int i, ret = 0, addr; - int ec, sn, pn, na; - u8 *vpd, csum, base_val = 0; - unsigned int vpdr_len, kw_offset, id_len; + unsigned int id_len, pn_len, sn_len, na_len; + int id, sn, pn, na, addr, ret = 0; + u8 *vpd, base_val = 0; vpd = vmalloc(VPD_LEN); if (!vpd) @@ -2765,74 +2764,52 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p) if (ret < 0) goto out; - if (vpd[0] != PCI_VPD_LRDT_ID_STRING) { - dev_err(adapter->pdev_dev, "missing VPD ID string\n"); - ret = -EINVAL; + ret = pci_vpd_find_id_string(vpd, VPD_LEN, &id_len); + if (ret < 0) goto out; - } + id = ret; - id_len = pci_vpd_lrdt_size(vpd); - if (id_len > ID_LEN) - id_len = ID_LEN; - - i = pci_vpd_find_tag(vpd, VPD_LEN, PCI_VPD_LRDT_RO_DATA); - if (i < 0) { - dev_err(adapter->pdev_dev, "missing VPD-R section\n"); + ret = pci_vpd_check_csum(vpd, VPD_LEN); + if (ret) { + dev_err(adapter->pdev_dev, "VPD checksum incorrect or missing\n"); ret = -EINVAL; goto out; } - vpdr_len = pci_vpd_lrdt_size(&vpd[i]); - kw_offset = i + PCI_VPD_LRDT_TAG_SIZE; - if (vpdr_len + kw_offset > VPD_LEN) { - dev_err(adapter->pdev_dev, "bad VPD-R length %u\n", vpdr_len); - ret = -EINVAL; + ret = pci_vpd_find_ro_info_keyword(vpd, VPD_LEN, + PCI_VPD_RO_KEYWORD_SERIALNO, &sn_len); + if (ret < 0) goto out; - } - -#define FIND_VPD_KW(var, name) do { \ - var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \ - if (var < 0) { \ - dev_err(adapter->pdev_dev, "missing VPD keyword " name "\n"); \ - ret = -EINVAL; \ - goto out; \ - } \ - var += PCI_VPD_INFO_FLD_HDR_SIZE; \ -} while (0) - - FIND_VPD_KW(i, "RV"); - for (csum = 0; i >= 0; i--) - csum += vpd[i]; + sn = ret; - if (csum) { - dev_err(adapter->pdev_dev, - "corrupted VPD EEPROM, actual csum %u\n", csum); - ret = -EINVAL; + ret = pci_vpd_find_ro_info_keyword(vpd, VPD_LEN, + PCI_VPD_RO_KEYWORD_PARTNO, &pn_len); + if (ret < 0) goto out; - } + pn = ret; - FIND_VPD_KW(ec, "EC"); - FIND_VPD_KW(sn, "SN"); - FIND_VPD_KW(pn, "PN"); - FIND_VPD_KW(na, "NA"); -#undef FIND_VPD_KW + ret = pci_vpd_find_ro_info_keyword(vpd, VPD_LEN, "NA", &na_len); + if (ret < 0) + goto out; + na = ret; - memcpy(p->id, vpd + PCI_VPD_LRDT_TAG_SIZE, id_len); + memcpy(p->id, vpd + id, min_t(int, id_len, ID_LEN)); strim(p->id); - memcpy(p->ec, vpd + ec, EC_LEN); - strim(p->ec); - i = pci_vpd_info_field_size(vpd + sn - PCI_VPD_INFO_FLD_HDR_SIZE); - memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN)); + memcpy(p->sn, vpd + sn, min_t(int, sn_len, SERNUM_LEN)); strim(p->sn); - i = pci_vpd_info_field_size(vpd + pn - PCI_VPD_INFO_FLD_HDR_SIZE); - memcpy(p->pn, vpd + pn, min(i, PN_LEN)); + memcpy(p->pn, vpd + pn, min_t(int, pn_len, PN_LEN)); strim(p->pn); - memcpy(p->na, vpd + na, min(i, MACADDR_LEN)); + memcpy(p->na, vpd + na, min_t(int, na_len, MACADDR_LEN)); strim((char *)p->na); out: vfree(vpd); - return ret < 0 ? ret : 0; + if (ret < 0) { + dev_err(adapter->pdev_dev, "error reading VPD\n"); + return ret; + } + + return 0; } /** |