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Commit 368c0ca2 authored by Sarveshwar Bandi's avatar Sarveshwar Bandi Committed by David S. Miller
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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: default avatarSarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a3aa1884

drivers/net/benet/be_cmds.c

+30 −0
Original line number Diff line number Diff line
@@ -1571,3 +1571,33 @@ int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern, 
	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;

}

drivers/net/benet/be_cmds.h

+16 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/benet/be_ethtool.c

+45 −0
Original line number Diff line number Diff line
@@ -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,