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net/funeth: Support for ethtool -m

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Add the FW command for reading port module memory pages and implement
ethtool's get_module_eeprom_by_page operation.

Signed-off-by: Dimitris Michailidis <dmichail@fungible.com>
Link: https://lore.kernel.org/r/20220627182000.8198-1-dmichail@fungible.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Dimitris Michailidis 2022-06-27 11:20:00 -07:00 • committed by Jakub Kicinski
parent 849d5aa3a1
commit f03c8a1e33
2 changed files with 74 additions and 0 deletions
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40
drivers/net/ethernet/fungible/funcore/fun_hci.h
View file

@ -442,6 +442,7 @@ enum fun_port_lane_attr {
};
enum fun_admin_port_subop {
FUN_ADMIN_PORT_SUBOP_XCVR_READ = 0x23,
FUN_ADMIN_PORT_SUBOP_INETADDR_EVENT = 0x24,
};
@ -595,6 +596,19 @@ struct fun_admin_port_req {
struct fun_admin_read48_req read48[];
} read;
struct fun_admin_port_xcvr_read_req {
u8 subop;
u8 rsvd0;
__be16 flags;
__be32 id;
u8 bank;
u8 page;
u8 offset;
u8 length;
u8 dev_addr;
u8 rsvd1[3];
} xcvr_read;
struct fun_admin_port_inetaddr_event_req {
__u8 subop;
__u8 rsvd0;
@ -625,6 +639,15 @@ struct fun_admin_port_req {
.id = cpu_to_be32(_id), \
}
#define FUN_ADMIN_PORT_XCVR_READ_REQ_INIT(_flags, _id, _bank, _page, \
_offset, _length, _dev_addr) \
((struct fun_admin_port_xcvr_read_req) { \
.subop = FUN_ADMIN_PORT_SUBOP_XCVR_READ, \
.flags = cpu_to_be16(_flags), .id = cpu_to_be32(_id), \
.bank = (_bank), .page = (_page), .offset = (_offset), \
.length = (_length), .dev_addr = (_dev_addr), \
})
struct fun_admin_port_rsp {
struct fun_admin_rsp_common common;
@ -659,6 +682,23 @@ struct fun_admin_port_rsp {
} u;
};
struct fun_admin_port_xcvr_read_rsp {
struct fun_admin_rsp_common common;
u8 subop;
u8 rsvd0[3];
__be32 id;
u8 bank;
u8 page;
u8 offset;
u8 length;
u8 dev_addr;
u8 rsvd1[3];
u8 data[128];
};
enum fun_xcvr_type {
FUN_XCVR_BASET = 0x0,
FUN_XCVR_CU = 0x1,

34
drivers/net/ethernet/fungible/funeth/funeth_ethtool.c
View file

@ -1118,6 +1118,39 @@ static int fun_set_fecparam(struct net_device *netdev,
return fun_port_write_cmd(fp, FUN_ADMIN_PORT_KEY_FEC, fec_mode);
}
static int fun_get_port_module_page(struct net_device *netdev,
const struct ethtool_module_eeprom *req,
struct netlink_ext_ack *extack)
{
union {
struct fun_admin_port_req req;
struct fun_admin_port_xcvr_read_rsp rsp;
} cmd;
struct funeth_priv *fp = netdev_priv(netdev);
int rc;
if (fp->port_caps & FUN_PORT_CAP_VPORT) {
NL_SET_ERR_MSG_MOD(extack,
"Specified port is virtual, only physical ports have modules");
return -EOPNOTSUPP;
}
cmd.req.common = FUN_ADMIN_REQ_COMMON_INIT2(FUN_ADMIN_OP_PORT,
sizeof(cmd.req));
cmd.req.u.xcvr_read =
FUN_ADMIN_PORT_XCVR_READ_REQ_INIT(0, netdev->dev_port,
req->bank, req->page,
req->offset, req->length,
req->i2c_address);
rc = fun_submit_admin_sync_cmd(fp->fdev, &cmd.req.common, &cmd.rsp,
sizeof(cmd.rsp), 0);
if (rc)
return rc;
memcpy(req->data, cmd.rsp.data, req->length);
return req->length;
}
static const struct ethtool_ops fun_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
@ -1156,6 +1189,7 @@ static const struct ethtool_ops fun_ethtool_ops = {
.get_eth_mac_stats = fun_get_802_3_stats,
.get_eth_ctrl_stats = fun_get_802_3_ctrl_stats,
.get_rmon_stats = fun_get_rmon_stats,
.get_module_eeprom_by_page = fun_get_port_module_page,
};
void fun_set_ethtool_ops(struct net_device *netdev)