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Date: Thu, 17 Mar 2011 12:52:43 +0530
From: Somnath Kotur <somnath.kotur@...lex.com>
To: <netdev@...r.kernel.org>
CC: Somnath Kotur <somnath.kotur@...lex.com>
Subject: [PATCH net-next-2.6] be2net: Support for FAT dump retrieval using ethtool --register-dump option
Signed-off-by: Somnath Kotur <somnath.kotur@...lex.com>
---
drivers/net/benet/be_cmds.c | 107 ++++++++++++++++++++++++++++++++++++++++
drivers/net/benet/be_cmds.h | 21 ++++++++
drivers/net/benet/be_ethtool.c | 21 ++++++++
drivers/net/benet/be_hw.h | 4 ++
4 files changed, 153 insertions(+), 0 deletions(-)
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 5a4a87e..2aadf88 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -1186,6 +1186,113 @@ err:
return status;
}
+/* Uses synchronous mcc */
+int be_cmd_get_reg_len(struct be_adapter *adapter, u32 *log_size)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_get_fat *req;
+ int status;
+
+ spin_lock_bh(&adapter->mcc_lock);
+
+ wrb = wrb_from_mccq(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+ req = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0,
+ OPCODE_COMMON_MANAGE_FAT);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_MANAGE_FAT, sizeof(*req));
+ req->fat_operation = cpu_to_le32(QUERY_FAT);
+ status = be_mcc_notify_wait(adapter);
+ if (!status) {
+ struct be_cmd_resp_get_fat *resp = embedded_payload(wrb);
+ if (log_size && resp->log_size)
+ *log_size = le32_to_cpu(resp->log_size -
+ sizeof(u32));
+ }
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+ return status;
+}
+
+void be_cmd_get_regs(struct be_adapter *adapter, u32 buf_len, void *buf)
+{
+ struct be_dma_mem get_fat_cmd;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_get_fat *req;
+ struct be_sge *sge;
+ u32 offset = 0, total_size, buf_size, log_offset = sizeof(u32);
+ int status;
+
+ if (buf_len == 0)
+ return;
+
+ total_size = buf_len;
+
+ spin_lock_bh(&adapter->mcc_lock);
+
+ wrb = wrb_from_mccq(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+ while (total_size) {
+ buf_size = min(total_size, (u32)60*1024);
+ total_size -= buf_size;
+
+ get_fat_cmd.size = sizeof(struct be_cmd_req_get_fat) + buf_size;
+ get_fat_cmd.va = pci_alloc_consistent(adapter->pdev,
+ get_fat_cmd.size,
+ &get_fat_cmd.dma);
+ if (!get_fat_cmd.va) {
+ status = -ENOMEM;
+ dev_err(&adapter->pdev->dev,
+ "Memory allocation failure while retrieving FAT data\n");
+ goto err;
+ }
+ req = get_fat_cmd.va;
+ sge = nonembedded_sgl(wrb);
+
+ be_wrb_hdr_prepare(wrb, get_fat_cmd.size, false, 1,
+ OPCODE_COMMON_MANAGE_FAT);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_MANAGE_FAT, get_fat_cmd.size);
+
+ sge->pa_hi = cpu_to_le32(upper_32_bits(get_fat_cmd.size));
+ sge->pa_lo = cpu_to_le32(get_fat_cmd.dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(get_fat_cmd.size);
+
+ req->fat_operation = cpu_to_le32(RETRIEVE_FAT);
+ req->read_log_offset = cpu_to_le32(log_offset);
+ req->read_log_length = cpu_to_le32(buf_size);
+ req->data_buffer_size = cpu_to_le32(buf_size);
+
+ status = be_mcc_notify_wait(adapter);
+ if (!status) {
+ struct be_cmd_resp_get_fat *resp = get_fat_cmd.va;
+ memcpy(buf + offset,
+ resp->data_buffer,
+ resp->read_log_length);
+ }
+ pci_free_consistent(adapter->pdev, get_fat_cmd.size,
+ get_fat_cmd.va,
+ get_fat_cmd.dma);
+ if (status)
+ dev_err(&adapter->pdev->dev, "FAT Table Retrieve error\n");
+
+ offset += buf_size;
+ log_offset += buf_size;
+ }
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+}
+
/* Uses Mbox */
int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver)
{
diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
index 4f254cf..3fb6e0a 100644
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -186,6 +186,7 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_NTWK_PMAC_ADD 59
#define OPCODE_COMMON_NTWK_PMAC_DEL 60
#define OPCODE_COMMON_FUNCTION_RESET 61
+#define OPCODE_COMMON_MANAGE_FAT 68
#define OPCODE_COMMON_ENABLE_DISABLE_BEACON 69
#define OPCODE_COMMON_GET_BEACON_STATE 70
#define OPCODE_COMMON_READ_TRANSRECV_DATA 73
@@ -380,6 +381,24 @@ struct be_cmd_resp_cq_create {
u16 rsvd0;
} __packed;
+struct be_cmd_req_get_fat {
+ struct be_cmd_req_hdr hdr;
+ u32 fat_operation;
+ u32 read_log_offset;
+ u32 read_log_length;
+ u32 data_buffer_size;
+ u32 data_buffer[1];
+} __packed;
+
+struct be_cmd_resp_get_fat {
+ struct be_cmd_resp_hdr hdr;
+ u32 log_size;
+ u32 read_log_length;
+ u32 rsvd[2];
+ u32 data_buffer[1];
+} __packed;
+
+
/******************** Create MCCQ ***************************/
/* Pseudo amap definition in which each bit of the actual structure is defined
* as a byte: used to calculate offset/shift/mask of each field */
@@ -1148,4 +1167,6 @@ extern void be_detect_dump_ue(struct be_adapter *adapter);
extern int be_cmd_get_die_temperature(struct be_adapter *adapter);
extern int be_cmd_get_cntl_attributes(struct be_adapter *adapter);
extern int be_cmd_check_native_mode(struct be_adapter *adapter);
+extern int be_cmd_get_reg_len(struct be_adapter *adapter, u32 *log_size);
+extern void be_cmd_get_regs(struct be_adapter *adapter, u32 buf_len, void *buf);
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index aac248f..575ac65 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -156,6 +156,25 @@ be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
}
static int
+be_get_reg_len(struct net_device *netdev)
+{
+ struct be_adapter *adapter = netdev_priv(netdev);
+ u32 log_size = 0;
+
+ be_cmd_get_reg_len(adapter, &log_size);
+ return log_size;
+}
+
+static void
+be_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *buf)
+{
+ struct be_adapter *adapter = netdev_priv(netdev);
+
+ memset(buf, 0, regs->len);
+ be_cmd_get_regs(adapter, regs->len, buf);
+}
+
+static int
be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
{
struct be_adapter *adapter = netdev_priv(netdev);
@@ -737,6 +756,8 @@ const struct ethtool_ops be_ethtool_ops = {
.phys_id = be_phys_id,
.get_sset_count = be_get_sset_count,
.get_ethtool_stats = be_get_ethtool_stats,
+ .get_regs_len = be_get_reg_len,
+ .get_regs = be_get_regs,
.flash_device = be_do_flash,
.self_test = be_self_test,
};
diff --git a/drivers/net/benet/be_hw.h b/drivers/net/benet/be_hw.h
index d4344a0..53d658a 100644
--- a/drivers/net/benet/be_hw.h
+++ b/drivers/net/benet/be_hw.h
@@ -155,6 +155,10 @@
/********** SRIOV VF PCICFG OFFSET ********/
#define SRIOV_VF_PCICFG_OFFSET (4096)
+/********** FAT TABLE ********/
+#define RETRIEVE_FAT 0
+#define QUERY_FAT 1
+
/* Flashrom related descriptors */
#define IMAGE_TYPE_FIRMWARE 160
#define IMAGE_TYPE_BOOTCODE 224
--
1.5.6.1
--
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