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Date: Wed, 6 Jan 2010 21:40:07 +0530
From: Sarveshwar Bandi <sarveshwarb@...verengines.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net
Subject: [net-next-2.6 PATCH] 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@...verengines.com>
---
drivers/net/benet/be_cmds.c | 30 +++++++++++++++++++++++++++
drivers/net/benet/be_cmds.h | 16 ++++++++++++++
drivers/net/benet/be_ethtool.c | 45 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 91 insertions(+), 0 deletions(-)
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 1b68bd9..b748c19 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;
+}
diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
index 92b87ef..6eed512 100644
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -124,6 +124,7 @@ #define OPCODE_COMMON_WRITE_FLASHROM 7
#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 b
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);
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index 298b92c..c5afc02 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -536,12 +536,57 @@ be_do_flash(struct net_device *netdev, s
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,
--
1.4.0
--
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