Commit 22c8c934 authored by Sucheta Chakraborty's avatar Sucheta Chakraborty Committed by David S. Miller

qlcnic: multi protocol internal loopback support added.

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: default avatarSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: default avatarAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9d6a6440
......@@ -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))
......@@ -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;
......@@ -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
*/
......@@ -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 */
......@@ -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 *);
......
......@@ -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)
......@@ -685,6 +686,123 @@ clear_it:
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)
......@@ -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;
}
}
......
......@@ -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.
*/
......
......@@ -1281,6 +1281,7 @@ qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
u16 cable_len;
u16 link_speed;
u8 link_status, module, duplex, autoneg;
u8 lb_status = 0;
struct net_device *netdev = adapter->netdev;
adapter->has_link_events = 1;
......@@ -1292,6 +1293,7 @@ qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
link_status = msg->body[2] & 0xff;
duplex = (msg->body[2] >> 16) & 0xff;
autoneg = (msg->body[2] >> 24) & 0xff;
lb_status = (msg->body[2] >> 32) & 0x3;
module = (msg->body[2] >> 8) & 0xff;
if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
......@@ -1301,6 +1303,9 @@ qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
dev_info(&netdev->dev, "unsupported cable length %d\n",
cable_len);
if (!link_status && (lb_status == 1))
adapter->ahw->loopback_state |= QLCNIC_LINKEVENT;
qlcnic_advert_link_change(adapter, link_status);
if (duplex == LINKEVENT_FULL_DUPLEX)
......@@ -1319,7 +1324,9 @@ qlcnic_handle_fw_message(int desc_cnt, int index,
{
struct qlcnic_fw_msg msg;
struct status_desc *desc;
int i = 0, opcode;
struct qlcnic_adapter *adapter;
struct device *dev;
int i = 0, opcode, ret;
while (desc_cnt > 0 && i < 8) {
desc = &sds_ring->desc_head[index];
......@@ -1330,10 +1337,28 @@ qlcnic_handle_fw_message(int desc_cnt, int index,
desc_cnt--;
}
adapter = sds_ring->adapter;
dev = &adapter->pdev->dev;
opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
switch (opcode) {
case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
qlcnic_handle_linkevent(sds_ring->adapter, &msg);
qlcnic_handle_linkevent(adapter, &msg);
break;
case QLCNIC_C2H_OPCODE_CONFIG_LOOPBACK:
ret = (u32)(msg.body[1]);
switch (ret) {
case 0:
adapter->ahw->loopback_state |= QLCNIC_LB_RESPONSE;
break;
case 1:
dev_info(dev, "loopback already in progress\n");
break;
default:
dev_info(dev, "loopback configure request failed,"
" ret %x\n", ret);
break;
}
break;
default:
break;
......@@ -1746,6 +1771,103 @@ qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
spin_unlock(&rds_ring->lock);
}
static void dump_skb(struct sk_buff *skb)
{
int i;
unsigned char *data = skb->data;
printk(KERN_INFO "\n");
for (i = 0; i < skb->len; i++) {
printk(KERN_INFO "%02x ", data[i]);
if ((i & 0x0f) == 8)
printk(KERN_INFO "\n");
}
}
void qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
struct qlcnic_host_sds_ring *sds_ring,
int ring, u64 sts_data0)
{
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
struct sk_buff *skb;
struct qlcnic_host_rds_ring *rds_ring;
int index, length, cksum, pkt_offset;
if (unlikely(ring >= adapter->max_rds_rings))
return;
rds_ring = &recv_ctx->rds_rings[ring];
index = qlcnic_get_sts_refhandle(sts_data0);
length = qlcnic_get_sts_totallength(sts_data0);
if (unlikely(index >= rds_ring->num_desc))
return;
cksum = qlcnic_get_sts_status(sts_data0);
pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
if (!skb)
return;
if (length > rds_ring->skb_size)
skb_put(skb, rds_ring->skb_size);
else
skb_put(skb, length);
if (pkt_offset)
skb_pull(skb, pkt_offset);
if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr))
adapter->diag_cnt++;
else
dump_skb(skb);
dev_kfree_skb_any(skb);
adapter->stats.rx_pkts++;
adapter->stats.rxbytes += length;
return;
}
void
qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
{
struct qlcnic_adapter *adapter = sds_ring->adapter;
struct status_desc *desc;
u64 sts_data0;
int ring, opcode, desc_cnt;
u32 consumer = sds_ring->consumer;
desc = &sds_ring->desc_head[consumer];
sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
if (!(sts_data0 & STATUS_OWNER_HOST))
return;
desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
opcode = qlcnic_get_sts_opcode(sts_data0);
switch (opcode) {
case QLCNIC_RESPONSE_DESC:
qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
break;
default:
ring = qlcnic_get_sts_type(sts_data0);
qlcnic_process_rcv_diag(adapter, sds_ring, ring, sts_data0);
break;
}
for (; desc_cnt > 0; desc_cnt--) {
desc = &sds_ring->desc_head[consumer];
desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
consumer = get_next_index(consumer, sds_ring->num_desc);
}
sds_ring->consumer = consumer;
writel(consumer, sds_ring->crb_sts_consumer);
}
void
qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
u8 alt_mac, u8 *mac)
......
......@@ -1391,6 +1391,12 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
qlcnic_enable_int(sds_ring);
}
}
if (adapter->diag_test == QLCNIC_LOOPBACK_TEST) {
adapter->ahw->loopback_state = 0;
qlcnic_linkevent_request(adapter, 1);
}
set_bit(__QLCNIC_DEV_UP, &adapter->state);
return 0;
......
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