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Date: Sun, 20 Feb 2011 15:42:07 -0600
From: Ajit Khaparde <ajit.khaparde@...lex.com>
To: <netdev@...r.kernel.org>, <davem@...emloft.net>
Subject: [PATCH net-next 5/6] be2net: add code to display temperature of
ASIC
Add support to display temperature of ASIC via ethtool -S
From: Somnath K <somnath.kotur@...lex.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@...lex.com>
---
drivers/net/benet/be.h | 7 ++++++
drivers/net/benet/be_cmds.c | 44 ++++++++++++++++++++++++++++++++++++++++
drivers/net/benet/be_cmds.h | 16 ++++++++++++++
drivers/net/benet/be_ethtool.c | 11 ++++++++-
4 files changed, 76 insertions(+), 2 deletions(-)
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index 7bf8dd4..46b951f 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -225,6 +225,10 @@ struct be_rx_obj {
u32 cache_line_barrier[15];
};
+struct be_drv_stats {
+ u8 be_on_die_temperature;
+};
+
struct be_vf_cfg {
unsigned char vf_mac_addr[ETH_ALEN];
u32 vf_if_handle;
@@ -234,6 +238,7 @@ struct be_vf_cfg {
};
#define BE_INVALID_PMAC_ID 0xffffffff
+
struct be_adapter {
struct pci_dev *pdev;
struct net_device *netdev;
@@ -269,6 +274,7 @@ struct be_adapter {
u32 big_page_size; /* Compounded page size shared by rx wrbs */
u8 msix_vec_next_idx;
+ struct be_drv_stats drv_stats;
struct vlan_group *vlan_grp;
u16 vlans_added;
@@ -281,6 +287,7 @@ struct be_adapter {
struct be_dma_mem stats_cmd;
/* Work queue used to perform periodic tasks like getting statistics */
struct delayed_work work;
+ u16 work_counter;
/* Ethtool knobs and info */
bool rx_csum; /* BE card must perform rx-checksumming */
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 59d25ac..ff62aae 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -18,6 +18,9 @@
#include "be.h"
#include "be_cmds.h"
+/* Must be a power of 2 or else MODULO will BUG_ON */
+static int be_get_temp_freq = 32;
+
static void be_mcc_notify(struct be_adapter *adapter)
{
struct be_queue_info *mccq = &adapter->mcc_obj.q;
@@ -1069,6 +1072,9 @@ int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd)
struct be_sge *sge;
int status = 0;
+ if (MODULO(adapter->work_counter, be_get_temp_freq) == 0)
+ be_cmd_get_die_temperature(adapter);
+
spin_lock_bh(&adapter->mcc_lock);
wrb = wrb_from_mccq(adapter);
@@ -1136,6 +1142,44 @@ err:
return status;
}
+/* Uses synchronous mcc */
+int be_cmd_get_die_temperature(struct be_adapter *adapter)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_get_cntl_addnl_attribs *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_GET_CNTL_ADDITIONAL_ATTRIBUTES);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_CNTL_ADDITIONAL_ATTRIBUTES, sizeof(*req));
+
+ status = be_mcc_notify_wait(adapter);
+ if (!status) {
+ struct be_cmd_resp_get_cntl_addnl_attribs *resp =
+ embedded_payload(wrb);
+ adapter->drv_stats.be_on_die_temperature =
+ resp->on_die_temperature;
+ }
+ /* If IOCTL fails once, do not bother issuing it again */
+ else
+ be_get_temp_freq = 0;
+
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+ return status;
+}
+
/* 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 a5af296..6e89de8 100644
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -189,6 +189,7 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_GET_BEACON_STATE 70
#define OPCODE_COMMON_READ_TRANSRECV_DATA 73
#define OPCODE_COMMON_GET_PHY_DETAILS 102
+#define OPCODE_COMMON_GET_CNTL_ADDITIONAL_ATTRIBUTES 121
#define OPCODE_ETH_RSS_CONFIG 1
#define OPCODE_ETH_ACPI_CONFIG 2
@@ -668,6 +669,20 @@ struct be_cmd_resp_get_stats {
struct be_hw_stats hw_stats;
};
+struct be_cmd_req_get_cntl_addnl_attribs {
+ struct be_cmd_req_hdr hdr;
+ u8 rsvd[8];
+};
+
+struct be_cmd_resp_get_cntl_addnl_attribs {
+ struct be_cmd_resp_hdr hdr;
+ u16 ipl_file_number;
+ u8 ipl_file_version;
+ u8 rsvd0;
+ u8 on_die_temperature; /* in degrees centigrade*/
+ u8 rsvd1[3];
+};
+
struct be_cmd_req_vlan_config {
struct be_cmd_req_hdr hdr;
u8 interface_id;
@@ -1099,4 +1114,5 @@ extern int be_cmd_get_phy_info(struct be_adapter *adapter,
struct be_dma_mem *cmd);
extern int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
extern void be_detect_dump_ue(struct be_adapter *adapter);
+extern int be_cmd_get_die_temperature(struct be_adapter *adapter);
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index 0833cbd..4766693 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -27,7 +27,7 @@ struct be_ethtool_stat {
};
enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT_TX, DRVSTAT_RX, ERXSTAT,
- PMEMSTAT};
+ PMEMSTAT, DRVSTAT};
#define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
offsetof(_struct, field)
#define NETSTAT_INFO(field) #field, NETSTAT,\
@@ -46,6 +46,9 @@ enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT_TX, DRVSTAT_RX, ERXSTAT,
FIELDINFO(struct be_erx_stats, field)
#define PMEMSTAT_INFO(field) #field, PMEMSTAT,\
FIELDINFO(struct be_pmem_stats, field)
+#define DRVSTAT_INFO(field) #field, DRVSTAT,\
+ FIELDINFO(struct be_drv_stats, \
+ field)
static const struct be_ethtool_stat et_stats[] = {
{NETSTAT_INFO(rx_packets)},
@@ -105,7 +108,8 @@ static const struct be_ethtool_stat et_stats[] = {
{MISCSTAT_INFO(rx_drops_mtu)},
{MISCSTAT_INFO(port0_jabber_events)},
{MISCSTAT_INFO(port1_jabber_events)},
- {PMEMSTAT_INFO(eth_red_drops)}
+ {PMEMSTAT_INFO(eth_red_drops)},
+ {DRVSTAT_INFO(be_on_die_temperature)}
};
#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
@@ -285,6 +289,9 @@ be_get_ethtool_stats(struct net_device *netdev,
case PMEMSTAT:
p = &hw_stats->pmem;
break;
+ case DRVSTAT:
+ p = &adapter->drv_stats;
+ break;
}
p = (u8 *)p + et_stats[i].offset;
--
1.7.1
--
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