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qlcnic: fix cdrp race condition

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Reading CRB registers(if reqd) before releasing the api lock.

Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sritej Velaga 2011-08-29 12:50:29 +00:00 committed by David S. Miller
parent a2050c7eee
commit 9254b75149
4 changed files with 95 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
View File

@ -1465,7 +1465,8 @@ int qlcnic_check_loopback_buff(unsigned char *data, u8 mac[]);
/* Functions from qlcnic_main.c */
int qlcnic_reset_context(struct qlcnic_adapter *);
u32 qlcnic_issue_cmd(struct qlcnic_adapter *adapter,
u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd);
u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd,
u32 *rd_args[3]);
void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings);
int qlcnic_diag_alloc_res(struct net_device *netdev, int test);
netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);

116
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
View File

@ -28,7 +28,8 @@ qlcnic_poll_rsp(struct qlcnic_adapter *adapter)
u32
qlcnic_issue_cmd(struct qlcnic_adapter *adapter,
u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd)
u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd,
u32 *rd_args[3])
{
u32 rsp;
u32 signature;
@ -56,7 +57,14 @@ qlcnic_issue_cmd(struct qlcnic_adapter *adapter,
rcode = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
dev_err(&pdev->dev, "failed card response code:0x%x\n",
rcode);
} else if (rsp == QLCNIC_CDRP_RSP_OK) {
if (rd_args[1])
*rd_args[1] = QLCRD32(adapter, QLCNIC_ARG2_CRB_OFFSET);
if (rd_args[2])
*rd_args[2] = QLCRD32(adapter, QLCNIC_ARG3_CRB_OFFSET);
}
if (rd_args[0])
*rd_args[0] = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
/* Release semaphore */
qlcnic_api_unlock(adapter);
@ -80,28 +88,30 @@ int qlcnic_fw_cmd_get_minidump_temp(struct qlcnic_adapter *adapter)
int err, i;
u16 temp_size;
void *tmp_addr;
u32 version, csum, *template, *tmp_buf;
u32 version, csum, *template, *tmp_buf, rsp;
u32 *rd_args[3];
struct qlcnic_hardware_context *ahw;
struct qlcnic_dump_template_hdr *tmpl_hdr, *tmp_tmpl;
dma_addr_t tmp_addr_t = 0;
ahw = adapter->ahw;
rd_args[0] = &rsp;
rd_args[1] = (u32 *) &temp_size;
rd_args[2] = &version;
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
0,
0,
0,
QLCNIC_CDRP_CMD_TEMP_SIZE);
QLCNIC_CDRP_CMD_TEMP_SIZE,
rd_args);
if (err != QLCNIC_RCODE_SUCCESS) {
err = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
dev_info(&adapter->pdev->dev,
"Can't get template size %d\n", err);
"Can't get template size %d\n", rsp);
err = -EIO;
return err;
}
version = QLCRD32(adapter, QLCNIC_ARG3_CRB_OFFSET);
temp_size = QLCRD32(adapter, QLCNIC_ARG2_CRB_OFFSET);
if (!temp_size)
return -EIO;
@ -112,13 +122,15 @@ int qlcnic_fw_cmd_get_minidump_temp(struct qlcnic_adapter *adapter)
"Can't get memory for FW dump template\n");
return -ENOMEM;
}
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
LSD(tmp_addr_t),
MSD(tmp_addr_t),
temp_size,
QLCNIC_CDRP_CMD_GET_TEMP_HDR);
QLCNIC_CDRP_CMD_GET_TEMP_HDR,
rd_args);
if (err != QLCNIC_RCODE_SUCCESS) {
dev_err(&adapter->pdev->dev,
@ -155,8 +167,10 @@ error:
int
qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu)
{
u32 *rd_args[3];
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
memset(rd_args, 0, sizeof(rd_args));
if (recv_ctx->state == QLCNIC_HOST_CTX_STATE_ACTIVE) {
if (qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
@ -164,7 +178,8 @@ qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu)
recv_ctx->context_id,
mtu,
0,
QLCNIC_CDRP_CMD_SET_MTU)) {
QLCNIC_CDRP_CMD_SET_MTU,
rd_args)) {
dev_err(&adapter->pdev->dev, "Failed to set mtu\n");
return -EIO;
@ -193,6 +208,7 @@ qlcnic_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
u8 i, nrds_rings, nsds_rings;
size_t rq_size, rsp_size;
u32 cap, reg, val, reg2;
u32 *rd_args[3];
int err;
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
@ -274,13 +290,15 @@ qlcnic_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
}
phys_addr = hostrq_phys_addr;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
(u32)(phys_addr >> 32),
(u32)(phys_addr & 0xffffffff),
rq_size,
QLCNIC_CDRP_CMD_CREATE_RX_CTX);
QLCNIC_CDRP_CMD_CREATE_RX_CTX,
rd_args);
if (err) {
dev_err(&adapter->pdev->dev,
"Failed to create rx ctx in firmware%d\n", err);
@ -326,15 +344,18 @@ out_free_rq:
static void
qlcnic_fw_cmd_destroy_rx_ctx(struct qlcnic_adapter *adapter)
{
u32 *rd_args[3];
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
memset(rd_args, 0, sizeof(rd_args));
if (qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
recv_ctx->context_id,
QLCNIC_DESTROY_CTX_RESET,
0,
QLCNIC_CDRP_CMD_DESTROY_RX_CTX)) {
QLCNIC_CDRP_CMD_DESTROY_RX_CTX,
rd_args)) {
dev_err(&adapter->pdev->dev,
"Failed to destroy rx ctx in firmware\n");
@ -352,6 +373,7 @@ qlcnic_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter)
void *rq_addr, *rsp_addr;
size_t rq_size, rsp_size;
u32 temp;
u32 *rd_args[3];
int err;
u64 phys_addr;
dma_addr_t rq_phys_addr, rsp_phys_addr;
@ -401,13 +423,15 @@ qlcnic_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter)
prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
phys_addr = rq_phys_addr;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
(u32)(phys_addr >> 32),
((u32)phys_addr & 0xffffffff),
rq_size,
QLCNIC_CDRP_CMD_CREATE_TX_CTX);
QLCNIC_CDRP_CMD_CREATE_TX_CTX,
rd_args);
if (err == QLCNIC_RCODE_SUCCESS) {
temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
@ -433,13 +457,17 @@ out_free_rq:
static void
qlcnic_fw_cmd_destroy_tx_ctx(struct qlcnic_adapter *adapter)
{
u32 *rd_args[3];
memset(rd_args, 0, sizeof(rd_args));
if (qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
adapter->tx_context_id,
QLCNIC_DESTROY_CTX_RESET,
0,
QLCNIC_CDRP_CMD_DESTROY_TX_CTX)) {
QLCNIC_CDRP_CMD_DESTROY_TX_CTX,
rd_args)) {
dev_err(&adapter->pdev->dev,
"Failed to destroy tx ctx in firmware\n");
@ -449,13 +477,17 @@ qlcnic_fw_cmd_destroy_tx_ctx(struct qlcnic_adapter *adapter)
int
qlcnic_fw_cmd_set_port(struct qlcnic_adapter *adapter, u32 config)
{
u32 *rd_args[3];
memset(rd_args, 0, sizeof(rd_args));
return qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
config,
0,
0,
QLCNIC_CDRP_CMD_CONFIG_PORT);
QLCNIC_CDRP_CMD_CONFIG_PORT,
rd_args);
}
int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
@ -620,20 +652,24 @@ void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
int qlcnic_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac)
{
int err;
u32 arg1;
u32 arg1, rd_arg1, rd_arg2;
u32 *rd_args[3];
arg1 = adapter->ahw->pci_func | BIT_8;
rd_args[0] = &rd_arg1;
rd_args[1] = &rd_arg2;
rd_args[2] = 0;
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
arg1,
0,
0,
QLCNIC_CDRP_CMD_MAC_ADDRESS);
QLCNIC_CDRP_CMD_MAC_ADDRESS,
rd_args);
if (err == QLCNIC_RCODE_SUCCESS)
qlcnic_fetch_mac(adapter, QLCNIC_ARG1_CRB_OFFSET,
QLCNIC_ARG2_CRB_OFFSET, 0, mac);
qlcnic_fetch_mac(adapter, rd_arg1, rd_arg2, 0, mac);
else {
dev_err(&adapter->pdev->dev,
"Failed to get mac address%d\n", err);
@ -651,6 +687,7 @@ int qlcnic_get_nic_info(struct qlcnic_adapter *adapter,
dma_addr_t nic_dma_t;
struct qlcnic_info *nic_info;
void *nic_info_addr;
u32 *rd_args[3];
size_t nic_size = sizeof(struct qlcnic_info);
nic_info_addr = dma_alloc_coherent(&adapter->pdev->dev, nic_size,
@ -660,13 +697,15 @@ int qlcnic_get_nic_info(struct qlcnic_adapter *adapter,
memset(nic_info_addr, 0, nic_size);
nic_info = nic_info_addr;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
MSD(nic_dma_t),
LSD(nic_dma_t),
(func_id << 16 | nic_size),
QLCNIC_CDRP_CMD_GET_NIC_INFO);
QLCNIC_CDRP_CMD_GET_NIC_INFO,
rd_args);
if (err == QLCNIC_RCODE_SUCCESS) {
npar_info->pci_func = le16_to_cpu(nic_info->pci_func);
@ -705,6 +744,7 @@ int qlcnic_set_nic_info(struct qlcnic_adapter *adapter, struct qlcnic_info *nic)
int err = -EIO;
dma_addr_t nic_dma_t;
void *nic_info_addr;
u32 *rd_args[3];
struct qlcnic_info *nic_info;
size_t nic_size = sizeof(struct qlcnic_info);
@ -730,13 +770,15 @@ int qlcnic_set_nic_info(struct qlcnic_adapter *adapter, struct qlcnic_info *nic)
nic_info->min_tx_bw = cpu_to_le16(nic->min_tx_bw);
nic_info->max_tx_bw = cpu_to_le16(nic->max_tx_bw);
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
MSD(nic_dma_t),
LSD(nic_dma_t),
((nic->pci_func << 16) | nic_size),
QLCNIC_CDRP_CMD_SET_NIC_INFO);
QLCNIC_CDRP_CMD_SET_NIC_INFO,
rd_args);
if (err != QLCNIC_RCODE_SUCCESS) {
dev_err(&adapter->pdev->dev,
@ -754,6 +796,7 @@ int qlcnic_get_pci_info(struct qlcnic_adapter *adapter,
struct qlcnic_pci_info *pci_info)
{
int err = 0, i;
u32 *rd_args[3];
dma_addr_t pci_info_dma_t;
struct qlcnic_pci_info *npar;
void *pci_info_addr;
@ -767,13 +810,15 @@ int qlcnic_get_pci_info(struct qlcnic_adapter *adapter,
memset(pci_info_addr, 0, pci_size);
npar = pci_info_addr;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
MSD(pci_info_dma_t),
LSD(pci_info_dma_t),
pci_size,
QLCNIC_CDRP_CMD_GET_PCI_INFO);
QLCNIC_CDRP_CMD_GET_PCI_INFO,
rd_args);
if (err == QLCNIC_RCODE_SUCCESS) {
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++, npar++, pci_info++) {
@ -805,6 +850,7 @@ int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
{
int err = -EIO;
u32 arg1;
u32 *rd_args[3];
if (adapter->op_mode != QLCNIC_MGMT_FUNC ||
!(adapter->eswitch[id].flags & QLCNIC_SWITCH_ENABLE))
@ -813,13 +859,15 @@ int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
arg1 = id | (enable_mirroring ? BIT_4 : 0);
arg1 |= pci_func << 8;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
arg1,
0,
0,
QLCNIC_CDRP_CMD_SET_PORTMIRRORING);
QLCNIC_CDRP_CMD_SET_PORTMIRRORING,
rd_args);
if (err != QLCNIC_RCODE_SUCCESS) {
dev_err(&adapter->pdev->dev,
@ -842,6 +890,7 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
dma_addr_t stats_dma_t;
void *stats_addr;
u32 arg1;
u32 *rd_args[3];
int err;
if (esw_stats == NULL)
@ -865,13 +914,15 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
arg1 = func | QLCNIC_STATS_VERSION << 8 | QLCNIC_STATS_PORT << 12;
arg1 |= rx_tx << 15 | stats_size << 16;
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
arg1,
MSD(stats_dma_t),
LSD(stats_dma_t),
QLCNIC_CDRP_CMD_GET_ESWITCH_STATS);
QLCNIC_CDRP_CMD_GET_ESWITCH_STATS,
rd_args);
if (!err) {
stats = stats_addr;
@ -952,6 +1003,7 @@ int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, const u8 func_esw,
{
u32 arg1;
u32 *rd_args[3];
if (adapter->op_mode != QLCNIC_MGMT_FUNC)
return -EIO;
@ -972,13 +1024,15 @@ int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, const u8 func_esw,
arg1 = port | QLCNIC_STATS_VERSION << 8 | func_esw << 12;
arg1 |= BIT_14 | rx_tx << 15;
memset(rd_args, 0, sizeof(rd_args));
return qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
arg1,
0,
0,
QLCNIC_CDRP_CMD_GET_ESWITCH_STATS);
QLCNIC_CDRP_CMD_GET_ESWITCH_STATS,
rd_args);
err_ret:
dev_err(&adapter->pdev->dev, "Invalid argument func_esw=%d port=%d"
@ -991,19 +1045,22 @@ __qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
u32 *arg1, u32 *arg2)
{
int err = -EIO;
u32 *rd_args[3];
u8 pci_func;
pci_func = (*arg1 >> 8);
rd_args[0] = arg1;
rd_args[1] = arg2;
rd_args[2] = 0;
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
*arg1,
0,
0,
QLCNIC_CDRP_CMD_GET_ESWITCH_PORT_CONFIG);
QLCNIC_CDRP_CMD_GET_ESWITCH_PORT_CONFIG,
rd_args);
if (err == QLCNIC_RCODE_SUCCESS) {
*arg1 = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
*arg2 = QLCRD32(adapter, QLCNIC_ARG2_CRB_OFFSET);
dev_info(&adapter->pdev->dev,
"eSwitch port config for pci func %d\n", pci_func);
} else {
@ -1025,6 +1082,7 @@ int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
{
int err = -EIO;
u32 arg1, arg2 = 0;
u32 *rd_args[3];
u8 pci_func;
if (adapter->op_mode != QLCNIC_MGMT_FUNC)
@ -1071,13 +1129,15 @@ int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
return err;
}
memset(rd_args, 0, sizeof(rd_args));
err = qlcnic_issue_cmd(adapter,
adapter->ahw->pci_func,
adapter->fw_hal_version,
arg1,
arg2,
0,
QLCNIC_CDRP_CMD_CONFIGURE_ESWITCH);
QLCNIC_CDRP_CMD_CONFIGURE_ESWITCH,
rd_args);
if (err != QLCNIC_RCODE_SUCCESS) {
dev_err(&adapter->pdev->dev,

4
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
View File

@ -659,6 +659,7 @@ static int qlcnic_irq_test(struct net_device *netdev)
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int max_sds_rings = adapter->max_sds_rings;
int ret;
u32 *rd_args[3];
if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EIO;
@ -668,9 +669,10 @@ static int qlcnic_irq_test(struct net_device *netdev)
goto clear_it;
adapter->diag_cnt = 0;
memset(rd_args, 0, sizeof(rd_args));
ret = qlcnic_issue_cmd(adapter, adapter->ahw->pci_func,
adapter->fw_hal_version, adapter->ahw->pci_func,
0, 0, 0x00000011);
0, 0, 0x00000011, rd_args);
if (ret)
goto done;

4
drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
View File

@ -1889,8 +1889,8 @@ qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
u32 mac_low, mac_high;
int i;
mac_low = QLCRD32(adapter, off1);
mac_high = QLCRD32(adapter, off2);
mac_low = off1;
mac_high = off2;
if (alt_mac) {
mac_low |= (mac_low >> 16) | (mac_high << 16);