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qlcnic: multi protocol internal loopback support added.
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Driver will generate loopback traffic pattern and do the test. And
returns result of the test to application.

Updated driver version to 5.0.19.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sucheta Chakraborty authored and David S. Miller committed Jun 24, 2011
1 parent 9d6a644 commit 22c8c93
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Showing 5 changed files with 322 additions and 5 deletions.
22 changes: 20 additions & 2 deletions drivers/net/qlcnic/qlcnic.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -36,8 +36,8 @@

#define _QLCNIC_LINUX_MAJOR 5
#define _QLCNIC_LINUX_MINOR 0
#define _QLCNIC_LINUX_SUBVERSION 18
#define QLCNIC_LINUX_VERSIONID "5.0.18"
#define _QLCNIC_LINUX_SUBVERSION 19
#define QLCNIC_LINUX_VERSIONID "5.0.19"
#define QLCNIC_DRV_IDC_VER 0x01
#define QLCNIC_DRIVER_VERSION ((_QLCNIC_LINUX_MAJOR << 16) |\
(_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
Expand Down Expand Up @@ -451,6 +451,7 @@ struct qlcnic_hardware_context {
u8 revision_id;
u8 pci_func;
u8 linkup;
u8 loopback_state;
u16 port_type;
u16 board_type;

Expand Down Expand Up @@ -780,6 +781,13 @@ struct qlcnic_mac_list_s {
#define QLCNIC_IP_UP 2
#define QLCNIC_IP_DOWN 3

#define QLCNIC_ILB_MODE 0x1

#define QLCNIC_LINKEVENT 0x1
#define QLCNIC_LB_RESPONSE 0x2
#define QLCNIC_IS_LB_CONFIGURED(VAL) \
(VAL == (QLCNIC_LINKEVENT | QLCNIC_LB_RESPONSE))

/*
* Driver --> Firmware
*/
Expand All @@ -789,13 +797,17 @@ struct qlcnic_mac_list_s {
#define QLCNIC_H2C_OPCODE_LRO_REQUEST 0x7
#define QLCNIC_H2C_OPCODE_SET_MAC_RECEIVE_MODE 0xc
#define QLCNIC_H2C_OPCODE_CONFIG_IPADDR 0x12

#define QLCNIC_H2C_OPCODE_GET_LINKEVENT 0x15
#define QLCNIC_H2C_OPCODE_CONFIG_BRIDGING 0x17
#define QLCNIC_H2C_OPCODE_CONFIG_HW_LRO 0x18
#define QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK 0x13

/*
* Firmware --> Driver
*/

#define QLCNIC_C2H_OPCODE_CONFIG_LOOPBACK 0x8f
#define QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE 141

#define VPORT_MISS_MODE_DROP 0 /* drop all unmatched */
Expand Down Expand Up @@ -1430,6 +1442,12 @@ int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter);
void qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
struct qlcnic_host_tx_ring *tx_ring);
void qlcnic_fetch_mac(struct qlcnic_adapter *, u32, u32, u8, u8 *);
void qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring);
void qlcnic_clear_lb_mode(struct qlcnic_adapter *adapter);
int qlcnic_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode);

/* Functions from qlcnic_ethtool.c */
int qlcnic_check_loopback_buff(unsigned char *data, u8 mac[]);

/* Functions from qlcnic_main.c */
int qlcnic_reset_context(struct qlcnic_adapter *);
Expand Down
123 changes: 122 additions & 1 deletion drivers/net/qlcnic/qlcnic_ethtool.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,8 @@ static const char qlcnic_device_gstrings_stats[][ETH_GSTRING_LEN] = {
static const char qlcnic_gstrings_test[][ETH_GSTRING_LEN] = {
"Register_Test_on_offline",
"Link_Test_on_offline",
"Interrupt_Test_offline"
"Interrupt_Test_offline",
"Loopback_Test_offline"
};

#define QLCNIC_TEST_LEN ARRAY_SIZE(qlcnic_gstrings_test)
Expand Down Expand Up @@ -685,6 +686,123 @@ static int qlcnic_irq_test(struct net_device *netdev)
return ret;
}

#define QLCNIC_ILB_PKT_SIZE 64
#define QLCNIC_NUM_ILB_PKT 16
#define QLCNIC_ILB_MAX_RCV_LOOP 10

static void qlcnic_create_loopback_buff(unsigned char *data, u8 mac[])
{
unsigned char random_data[] = {0xa8, 0x06, 0x45, 0x00};

memset(data, 0x4e, QLCNIC_ILB_PKT_SIZE);

memcpy(data, mac, ETH_ALEN);
memcpy(data + ETH_ALEN, mac, ETH_ALEN);

memcpy(data + 2 * ETH_ALEN, random_data, sizeof(random_data));
}

int qlcnic_check_loopback_buff(unsigned char *data, u8 mac[])
{
unsigned char buff[QLCNIC_ILB_PKT_SIZE];
qlcnic_create_loopback_buff(buff, mac);
return memcmp(data, buff, QLCNIC_ILB_PKT_SIZE);
}

static int qlcnic_do_ilb_test(struct qlcnic_adapter *adapter)
{
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
struct qlcnic_host_sds_ring *sds_ring = &recv_ctx->sds_rings[0];
struct sk_buff *skb;
int i, loop, cnt = 0;

for (i = 0; i < QLCNIC_NUM_ILB_PKT; i++) {
skb = dev_alloc_skb(QLCNIC_ILB_PKT_SIZE);
qlcnic_create_loopback_buff(skb->data, adapter->mac_addr);
skb_put(skb, QLCNIC_ILB_PKT_SIZE);

adapter->diag_cnt = 0;
qlcnic_xmit_frame(skb, adapter->netdev);

loop = 0;
do {
msleep(1);
qlcnic_process_rcv_ring_diag(sds_ring);
if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP)
break;
} while (!adapter->diag_cnt);

dev_kfree_skb_any(skb);

if (!adapter->diag_cnt)
dev_warn(&adapter->pdev->dev, "ILB Test: %dth packet"
" not recevied\n", i + 1);
else
cnt++;
}
if (cnt != i) {
dev_warn(&adapter->pdev->dev, "ILB Test failed\n");
return -1;
}
return 0;
}

static int qlcnic_iloopback_test(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int max_sds_rings = adapter->max_sds_rings;
struct qlcnic_host_sds_ring *sds_ring;
int loop = 0;
int ret;

netdev_info(netdev, "%s: in progress\n", __func__);
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
netdev_warn(netdev, "Loopback test not supported for non "
"privilege function\n");
return 0;
}

if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EIO;


ret = qlcnic_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST);
if (ret)
goto clear_it;

sds_ring = &adapter->recv_ctx->sds_rings[0];

ret = qlcnic_set_lb_mode(adapter, QLCNIC_ILB_MODE);
if (ret)
goto free_res;

do {
msleep(500);
qlcnic_process_rcv_ring_diag(sds_ring);
if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP)
break;
} while (!QLCNIC_IS_LB_CONFIGURED(adapter->ahw->loopback_state));

if (!QLCNIC_IS_LB_CONFIGURED(adapter->ahw->loopback_state)) {
netdev_info(netdev, "firmware didnt respond to loopback "
"configure request\n");
ret = adapter->ahw->loopback_state;
goto free_res;
}

ret = qlcnic_do_ilb_test(adapter);

qlcnic_clear_lb_mode(adapter);

free_res:
qlcnic_diag_free_res(netdev, max_sds_rings);

clear_it:
adapter->max_sds_rings = max_sds_rings;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
return ret;
}

static void
qlcnic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
u64 *data)
Expand All @@ -704,6 +822,9 @@ qlcnic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
if (data[2])
eth_test->flags |= ETH_TEST_FL_FAILED;

data[3] = qlcnic_iloopback_test(dev);
if (data[3])
eth_test->flags |= ETH_TEST_FL_FAILED;

}
}
Expand Down
50 changes: 50 additions & 0 deletions drivers/net/qlcnic/qlcnic_hw.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -533,6 +533,56 @@ void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
}
}

int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
{
struct qlcnic_nic_req req;
int rv;

memset(&req, 0, sizeof(struct qlcnic_nic_req));

req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));

req.words[0] = cpu_to_le64(flag);

rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
flag ? "Set" : "Reset");
return rv;
}

int qlcnic_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
{
if (qlcnic_set_fw_loopback(adapter, mode))
return -EIO;

if (qlcnic_nic_set_promisc(adapter, VPORT_MISS_MODE_ACCEPT_ALL)) {
qlcnic_set_fw_loopback(adapter, mode);
return -EIO;
}

msleep(1000);
return 0;
}

void qlcnic_clear_lb_mode(struct qlcnic_adapter *adapter)
{
int mode = VPORT_MISS_MODE_DROP;
struct net_device *netdev = adapter->netdev;

qlcnic_set_fw_loopback(adapter, 0);

if (netdev->flags & IFF_PROMISC)
mode = VPORT_MISS_MODE_ACCEPT_ALL;
else if (netdev->flags & IFF_ALLMULTI)
mode = VPORT_MISS_MODE_ACCEPT_MULTI;

qlcnic_nic_set_promisc(adapter, mode);
msleep(1000);
}

/*
* Send the interrupt coalescing parameter set by ethtool to the card.
*/
Expand Down
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