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nvethernet: Add FRP command IOCTL support

Browse Source 
Add new private IOCTL to perform
Flexible Receive Parser table entry
add, delete, and update operations
using OSI API call.

Bug 200565623

Change-Id: I00f2be1aaa6ee737de5154085be0521db0bb9593
Signed-off-by: Mohan Thadikamalla <mohant@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2331371
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
This commit is contained in:
Mohan Thadikamalla
2020-04-20 15:27:33 +05:30
committed by Revanth Kumar Uppala
parent f244049a90
commit c2f3c724bd
5 changed files with 148 additions and 0 deletions
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56
drivers/net/ethernet/nvidia/nvethernet/ethtool.c
View File

@@ -39,6 +39,35 @@ struct ether_stats {
size_t stat_offset;
};
/**
* @brief Name of FRP statistics, with length of name not more than
* ETH_GSTRING_LEN
*/
#if KERNEL_VERSION(5, 5, 0) > LINUX_VERSION_CODE
#define ETHER_PKT_FRP_STAT(y) \
{ (#y), FIELD_SIZEOF(struct osi_pkt_err_stats, y), \
offsetof(struct osi_dma_priv_data, pkt_err_stats.y)}
#else
#define ETHER_PKT_FRP_STAT(y) \
{ (#y), sizeof_field(struct osi_pkt_err_stats, y), \
offsetof(struct osi_dma_priv_data, pkt_err_stats.y)}
#endif
/**
* @brief FRP statistics
*/
static const struct ether_stats ether_frpstrings_stats[] = {
ETHER_PKT_FRP_STAT(frp_parsed),
ETHER_PKT_FRP_STAT(frp_dropped),
ETHER_PKT_FRP_STAT(frp_err),
ETHER_PKT_FRP_STAT(frp_incomplete),
};
/**
* @brief Ethernet FRP statistics array length
*/
#define ETHER_FRP_STAT_LEN OSI_ARRAY_SIZE(ether_frpstrings_stats)
/**
* @brief Name of pkt_err statistics, with length of name not more than
* ETH_GSTRING_LEN
@@ -496,6 +525,15 @@ static void ether_get_ethtool_stats(struct net_device *dev,
data[j++] = (ether_tstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
}
for (i = 0; ((i < ETHER_FRP_STAT_LEN) &&
(pdata->hw_feat.frp_sel == OSI_ENABLE)); i++) {
char *p = (char *)osi_core +
ether_frpstrings_stats[i].stat_offset;
data[j++] = (ether_frpstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
}
}
}
@@ -546,6 +584,13 @@ static int ether_get_sset_count(struct net_device *dev, int sset)
len += ETHER_EXTRA_TSN_STAT_LEN;
}
}
if (INT_MAX - ETHER_FRP_STAT_LEN < len) {
/* do nothing */
} else {
if (pdata->hw_feat.frp_sel == OSI_ENABLE) {
len += ETHER_FRP_STAT_LEN;
}
}
} else if (sset == ETH_SS_TEST) {
len = ether_selftest_get_count(pdata);
} else {
@@ -619,6 +664,17 @@ static void ether_get_strings(struct net_device *dev, u32 stringset, u8 *data)
}
p += ETH_GSTRING_LEN;
}
for (i = 0; ((i < ETHER_FRP_STAT_LEN) &&
(pdata->hw_feat.frp_sel == OSI_ENABLE));
i++) {
str = (u8 *)
ether_frpstrings_stats[i].stat_string;
if (memcpy(p, str, ETH_GSTRING_LEN) ==
OSI_NULL) {
return;
}
p += ETH_GSTRING_LEN;
}
}
} else if (stringset == (u32)ETH_SS_TEST) {
ether_selftest_get_strings(pdata, p);