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>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 1b68bd98dc0..b748c197408 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -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;
+}