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Merge branch 'qlcnic'
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Himanshu Madhani says:

====================
qlcnic: Multiple Tx queue support and code refactoring

This Patch series contains following changes

o Refactored code to calculate, validate and assign Tx/SDS rings for  various modes of driver.
o Enhanced ethtool statistics for multi Tx queue on all supported adapters.
o Enable multiple Tx queue for 83xx and 84xx Series adapters.
o Register netdev for failed device state.

changes from v1 -> v2
o Dropped patch to replace inappropriate usage of kzalloc() with vzalloc().

Please apply to net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller committed Nov 4, 2013
2 parents 1651483 + db62d7d commit 96635fb
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Showing 12 changed files with 569 additions and 409 deletions.
84 changes: 53 additions & 31 deletions drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
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Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,8 @@

#define _QLCNIC_LINUX_MAJOR 5
#define _QLCNIC_LINUX_MINOR 3
#define _QLCNIC_LINUX_SUBVERSION 51
#define QLCNIC_LINUX_VERSIONID "5.3.51"
#define _QLCNIC_LINUX_SUBVERSION 52
#define QLCNIC_LINUX_VERSIONID "5.3.52"
#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 @@ -98,8 +98,22 @@
#define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
+ MGMT_CMD_DESC_RESV)
#define QLCNIC_MAX_TX_TIMEOUTS 2
#define QLCNIC_MAX_TX_RINGS 8
#define QLCNIC_MAX_SDS_RINGS 8

/* Driver will use 1 Tx ring in INT-x/MSI/SRIOV mode. */
#define QLCNIC_SINGLE_RING 1
#define QLCNIC_DEF_SDS_RINGS 4
#define QLCNIC_DEF_TX_RINGS 4
#define QLCNIC_MAX_VNIC_TX_RINGS 4
#define QLCNIC_MAX_VNIC_SDS_RINGS 4

enum qlcnic_queue_type {
QLCNIC_TX_QUEUE = 1,
QLCNIC_RX_QUEUE,
};

/* Operational mode for driver */
#define QLCNIC_VNIC_MODE 0xFF
#define QLCNIC_DEFAULT_MODE 0x0

/*
* Following are the states of the Phantom. Phantom will set them and
Expand Down Expand Up @@ -533,6 +547,14 @@ struct qlcnic_host_sds_ring {
char name[IFNAMSIZ + 12];
} ____cacheline_internodealigned_in_smp;

struct qlcnic_tx_queue_stats {
u64 xmit_on;
u64 xmit_off;
u64 xmit_called;
u64 xmit_finished;
u64 tx_bytes;
};

struct qlcnic_host_tx_ring {
int irq;
void __iomem *crb_intr_mask;
Expand All @@ -544,10 +566,7 @@ struct qlcnic_host_tx_ring {
u32 sw_consumer;
u32 num_desc;

u64 xmit_on;
u64 xmit_off;
u64 xmit_called;
u64 xmit_finished;
struct qlcnic_tx_queue_stats tx_stats;

void __iomem *crb_cmd_producer;
struct cmd_desc_type0 *desc_head;
Expand Down Expand Up @@ -940,8 +959,6 @@ struct qlcnic_ipaddr {
#define QLCNIC_BEACON_EANBLE 0xC
#define QLCNIC_BEACON_DISABLE 0xD

#define QLCNIC_DEF_NUM_STS_DESC_RINGS 4
#define QLCNIC_DEF_NUM_TX_RINGS 4
#define QLCNIC_MSIX_TBL_SPACE 8192
#define QLCNIC_PCI_REG_MSIX_TBL 0x44
#define QLCNIC_MSIX_TBL_PGSIZE 4096
Expand All @@ -961,6 +978,7 @@ struct qlcnic_ipaddr {
#define __QLCNIC_SRIOV_CAPABLE 11
#define __QLCNIC_MBX_POLL_ENABLE 12
#define __QLCNIC_DIAG_MODE 13
#define __QLCNIC_MAINTENANCE_MODE 16

#define QLCNIC_INTERRUPT_TEST 1
#define QLCNIC_LOOPBACK_TEST 2
Expand Down Expand Up @@ -1011,15 +1029,20 @@ struct qlcnic_adapter {
unsigned long state;
u32 flags;

int max_drv_tx_rings;
u16 num_txd;
u16 num_rxd;
u16 num_jumbo_rxd;
u16 max_rxd;
u16 max_jumbo_rxd;

u8 max_rds_rings;
u8 max_sds_rings;

u8 max_sds_rings; /* max sds rings supported by adapter */
u8 max_tx_rings; /* max tx rings supported by adapter */

u8 drv_tx_rings; /* max tx rings supported by driver */
u8 drv_sds_rings; /* max sds rings supported by driver */

u8 rx_csum;
u8 portnum;

Expand Down Expand Up @@ -1542,12 +1565,13 @@ int qlcnic_loopback_test(struct net_device *, u8);

/* Functions from qlcnic_main.c */
int qlcnic_reset_context(struct qlcnic_adapter *);
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);
int qlcnic_set_max_rss(struct qlcnic_adapter *, u8, int);
int qlcnic_validate_max_rss(struct qlcnic_adapter *, __u32);
int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *, u32 txq);
void qlcnic_diag_free_res(struct net_device *netdev, int);
int qlcnic_diag_alloc_res(struct net_device *netdev, int);
netdev_tx_t qlcnic_xmit_frame(struct sk_buff *, struct net_device *);
void qlcnic_set_tx_ring_count(struct qlcnic_adapter *, u8);
void qlcnic_set_sds_ring_count(struct qlcnic_adapter *, u8);
int qlcnic_setup_rings(struct qlcnic_adapter *, u8, u8);
int qlcnic_validate_rings(struct qlcnic_adapter *, __u32, int);
void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
int qlcnic_enable_msix(struct qlcnic_adapter *, u32);
Expand Down Expand Up @@ -1640,19 +1664,18 @@ static inline u32 qlcnic_tx_avail(struct qlcnic_host_tx_ring *tx_ring)
static inline int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
struct net_device *netdev)
{
int err, tx_q;

tx_q = adapter->max_drv_tx_rings;
int err;

netdev->num_tx_queues = tx_q;
netdev->real_num_tx_queues = tx_q;
netdev->num_tx_queues = adapter->drv_tx_rings;
netdev->real_num_tx_queues = adapter->drv_tx_rings;

err = netif_set_real_num_tx_queues(netdev, tx_q);
err = netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
if (err)
dev_err(&adapter->pdev->dev, "failed to set %d Tx queues\n",
tx_q);
adapter->drv_tx_rings);
else
dev_info(&adapter->pdev->dev, "set %d Tx queues\n", tx_q);
dev_info(&adapter->pdev->dev, "Set %d Tx queues\n",
adapter->drv_tx_rings);

return err;
}
Expand Down Expand Up @@ -1694,7 +1717,7 @@ struct qlcnic_hardware_ops {
int (*write_reg) (struct qlcnic_adapter *, ulong, u32);
void (*get_ocm_win) (struct qlcnic_hardware_context *);
int (*get_mac_address) (struct qlcnic_adapter *, u8 *, u8);
int (*setup_intr) (struct qlcnic_adapter *, u8, int);
int (*setup_intr) (struct qlcnic_adapter *);
int (*alloc_mbx_args)(struct qlcnic_cmd_args *,
struct qlcnic_adapter *, u32);
int (*mbx_cmd) (struct qlcnic_adapter *, struct qlcnic_cmd_args *);
Expand Down Expand Up @@ -1765,10 +1788,9 @@ static inline int qlcnic_get_mac_address(struct qlcnic_adapter *adapter,
return adapter->ahw->hw_ops->get_mac_address(adapter, mac, function);
}

static inline int qlcnic_setup_intr(struct qlcnic_adapter *adapter,
u8 num_intr, int txq)
static inline int qlcnic_setup_intr(struct qlcnic_adapter *adapter)
{
return adapter->ahw->hw_ops->setup_intr(adapter, num_intr, txq);
return adapter->ahw->hw_ops->setup_intr(adapter);
}

static inline int qlcnic_alloc_mbx_args(struct qlcnic_cmd_args *mbx,
Expand Down Expand Up @@ -2004,7 +2026,7 @@ static inline bool qlcnic_check_multi_tx(struct qlcnic_adapter *adapter)
static inline void qlcnic_disable_multi_tx(struct qlcnic_adapter *adapter)
{
test_and_clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
adapter->max_drv_tx_rings = 1;
adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
}

/* When operating in a muti tx mode, driver needs to write 0x1
Expand Down
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