be2net: add register dump feature for Lancer
Implement register dump using ethtool for Lancer.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 1ad7a28..1e7252e 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -143,15 +143,77 @@
drvinfo->eedump_len = 0;
}
+static u32
+lancer_cmd_get_file_len(struct be_adapter *adapter, u8 *file_name)
+{
+ u32 data_read = 0, eof;
+ u8 addn_status;
+ struct be_dma_mem data_len_cmd;
+ int status;
+
+ memset(&data_len_cmd, 0, sizeof(data_len_cmd));
+ /* data_offset and data_size should be 0 to get reg len */
+ status = lancer_cmd_read_object(adapter, &data_len_cmd, 0, 0,
+ file_name, &data_read, &eof, &addn_status);
+
+ return data_read;
+}
+
+static int
+lancer_cmd_read_file(struct be_adapter *adapter, u8 *file_name,
+ u32 buf_len, void *buf)
+{
+ struct be_dma_mem read_cmd;
+ u32 read_len = 0, total_read_len = 0, chunk_size;
+ u32 eof = 0;
+ u8 addn_status;
+ int status = 0;
+
+ read_cmd.size = LANCER_READ_FILE_CHUNK;
+ read_cmd.va = pci_alloc_consistent(adapter->pdev, read_cmd.size,
+ &read_cmd.dma);
+
+ if (!read_cmd.va) {
+ dev_err(&adapter->pdev->dev,
+ "Memory allocation failure while reading dump\n");
+ return -ENOMEM;
+ }
+
+ while ((total_read_len < buf_len) && !eof) {
+ chunk_size = min_t(u32, (buf_len - total_read_len),
+ LANCER_READ_FILE_CHUNK);
+ chunk_size = ALIGN(chunk_size, 4);
+ status = lancer_cmd_read_object(adapter, &read_cmd, chunk_size,
+ total_read_len, file_name, &read_len,
+ &eof, &addn_status);
+ if (!status) {
+ memcpy(buf + total_read_len, read_cmd.va, read_len);
+ total_read_len += read_len;
+ eof &= LANCER_READ_FILE_EOF_MASK;
+ } else {
+ status = -EIO;
+ break;
+ }
+ }
+ pci_free_consistent(adapter->pdev, read_cmd.size, read_cmd.va,
+ read_cmd.dma);
+
+ return status;
+}
+
static int
be_get_reg_len(struct net_device *netdev)
{
struct be_adapter *adapter = netdev_priv(netdev);
u32 log_size = 0;
- if (be_physfn(adapter))
- be_cmd_get_reg_len(adapter, &log_size);
-
+ if (be_physfn(adapter)) {
+ if (lancer_chip(adapter))
+ log_size = lancer_cmd_get_file_len(adapter,
+ LANCER_FW_DUMP_FILE);
+ else
+ be_cmd_get_reg_len(adapter, &log_size);
+ }
return log_size;
}
@@ -162,7 +224,11 @@
if (be_physfn(adapter)) {
memset(buf, 0, regs->len);
- be_cmd_get_regs(adapter, regs->len, buf);
+ if (lancer_chip(adapter))
+ lancer_cmd_read_file(adapter, LANCER_FW_DUMP_FILE,
+ regs->len, buf);
+ else
+ be_cmd_get_regs(adapter, regs->len, buf);
}
}