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be2net: implements ethtool function to read eeprom data. 

The patch implements a firmware command to fetch the eeprom data.

Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sarveshwar Bandi 2010-01-08 00:07:27 -08:00 committed by David S. Miller
parent a3aa18842a
commit 368c0ca2f0
3 changed files with 91 additions and 0 deletions
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30
drivers/net/benet/be_cmds.c
View File

@ -1571,3 +1571,33 @@ err:
spin_unlock_bh(&adapter->mcc_lock);
return status;
}
extern int be_cmd_get_seeprom_data(struct be_adapter *adapter,
struct be_dma_mem *nonemb_cmd)
{
struct be_mcc_wrb *wrb;
struct be_cmd_req_seeprom_read *req;
struct be_sge *sge;
int status;
spin_lock_bh(&adapter->mcc_lock);
wrb = wrb_from_mccq(adapter);
req = nonemb_cmd->va;
sge = nonembedded_sgl(wrb);
be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1,
OPCODE_COMMON_SEEPROM_READ);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_SEEPROM_READ, sizeof(*req));
sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
sge->len = cpu_to_le32(nonemb_cmd->size);
status = be_mcc_notify_wait(adapter);
spin_unlock_bh(&adapter->mcc_lock);
return status;
}

16
drivers/net/benet/be_cmds.h
View File

@ -124,6 +124,7 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_CQ_CREATE 12
#define OPCODE_COMMON_EQ_CREATE 13
#define OPCODE_COMMON_MCC_CREATE 21
#define OPCODE_COMMON_SEEPROM_READ 30
#define OPCODE_COMMON_NTWK_RX_FILTER 34
#define OPCODE_COMMON_GET_FW_VERSION 35
#define OPCODE_COMMON_SET_FLOW_CONTROL 36
@ -840,6 +841,19 @@ struct be_cmd_resp_ddrdma_test {
u8 rcv_buff[4096];
};
/*********************** SEEPROM Read ***********************/
#define BE_READ_SEEPROM_LEN 1024
struct be_cmd_req_seeprom_read {
struct be_cmd_req_hdr hdr;
u8 rsvd0[BE_READ_SEEPROM_LEN];
};
struct be_cmd_resp_seeprom_read {
struct be_cmd_req_hdr hdr;
u8 seeprom_data[BE_READ_SEEPROM_LEN];
};
extern int be_pci_fnum_get(struct be_adapter *adapter);
extern int be_cmd_POST(struct be_adapter *adapter);
extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@ -912,3 +926,5 @@ extern int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
u32 num_pkts, u64 pattern);
extern int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern,
u32 byte_cnt, struct be_dma_mem *cmd);
extern int be_cmd_get_seeprom_data(struct be_adapter *adapter,
struct be_dma_mem *nonemb_cmd);

45
drivers/net/benet/be_ethtool.c
View File

@ -536,12 +536,57 @@ be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
return be_load_fw(adapter, file_name);
}
static int
be_get_eeprom_len(struct net_device *netdev)
{
return BE_READ_SEEPROM_LEN;
}
static int
be_read_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
uint8_t *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct be_dma_mem eeprom_cmd;
struct be_cmd_resp_seeprom_read *resp;
int status;
if (!eeprom->len)
return -EINVAL;
eeprom->magic = BE_VENDOR_ID | (adapter->pdev->device<<16);
memset(&eeprom_cmd, 0, sizeof(struct be_dma_mem));
eeprom_cmd.size = sizeof(struct be_cmd_req_seeprom_read);
eeprom_cmd.va = pci_alloc_consistent(adapter->pdev, eeprom_cmd.size,
&eeprom_cmd.dma);
if (!eeprom_cmd.va) {
dev_err(&adapter->pdev->dev,
"Memory allocation failure. Could not read eeprom\n");
return -ENOMEM;
}
status = be_cmd_get_seeprom_data(adapter, &eeprom_cmd);
if (!status) {
resp = (struct be_cmd_resp_seeprom_read *) eeprom_cmd.va;
memcpy(data, resp->seeprom_data, eeprom->len);
}
pci_free_consistent(adapter->pdev, eeprom_cmd.size, eeprom_cmd.va,
eeprom_cmd.dma);
return status;
}
const struct ethtool_ops be_ethtool_ops = {
.get_settings = be_get_settings,
.get_drvinfo = be_get_drvinfo,
.get_wol = be_get_wol,
.set_wol = be_set_wol,
.get_link = ethtool_op_get_link,
.get_eeprom_len = be_get_eeprom_len,
.get_eeprom = be_read_eeprom,
.get_coalesce = be_get_coalesce,
.set_coalesce = be_set_coalesce,
.get_ringparam = be_get_ringparam,