diff options
Diffstat (limited to 'drivers/net/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 88 |
1 files changed, 36 insertions, 52 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 4762c91cb58..64e7caa4bbb 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -13,11 +13,16 @@ #ifndef EFX_NET_DRIVER_H #define EFX_NET_DRIVER_H +#if defined(EFX_ENABLE_DEBUG) && !defined(DEBUG) +#define DEBUG +#endif + #include <linux/version.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/if_vlan.h> +#include <linux/timer.h> #include <linux/mdio.h> #include <linux/list.h> #include <linux/pci.h> @@ -34,9 +39,7 @@ * Build definitions * **************************************************************************/ -#ifndef EFX_DRIVER_NAME -#define EFX_DRIVER_NAME "sfc" -#endif + #define EFX_DRIVER_VERSION "3.0" #ifdef EFX_ENABLE_DEBUG @@ -47,35 +50,6 @@ #define EFX_WARN_ON_PARANOID(x) do {} while (0) #endif -/* Un-rate-limited logging */ -#define EFX_ERR(efx, fmt, args...) \ -dev_err(&((efx)->pci_dev->dev), "ERR: %s " fmt, efx_dev_name(efx), ##args) - -#define EFX_INFO(efx, fmt, args...) \ -dev_info(&((efx)->pci_dev->dev), "INFO: %s " fmt, efx_dev_name(efx), ##args) - -#ifdef EFX_ENABLE_DEBUG -#define EFX_LOG(efx, fmt, args...) \ -dev_info(&((efx)->pci_dev->dev), "DBG: %s " fmt, efx_dev_name(efx), ##args) -#else -#define EFX_LOG(efx, fmt, args...) \ -dev_dbg(&((efx)->pci_dev->dev), "DBG: %s " fmt, efx_dev_name(efx), ##args) -#endif - -#define EFX_TRACE(efx, fmt, args...) do {} while (0) - -#define EFX_REGDUMP(efx, fmt, args...) do {} while (0) - -/* Rate-limited logging */ -#define EFX_ERR_RL(efx, fmt, args...) \ -do {if (net_ratelimit()) EFX_ERR(efx, fmt, ##args); } while (0) - -#define EFX_INFO_RL(efx, fmt, args...) \ -do {if (net_ratelimit()) EFX_INFO(efx, fmt, ##args); } while (0) - -#define EFX_LOG_RL(efx, fmt, args...) \ -do {if (net_ratelimit()) EFX_LOG(efx, fmt, ##args); } while (0) - /************************************************************************** * * Efx data structures @@ -221,7 +195,6 @@ struct efx_tx_queue { * If both this and skb are %NULL, the buffer slot is currently free. * @data: Pointer to ethernet header * @len: Buffer length, in bytes. - * @unmap_addr: DMA address to unmap */ struct efx_rx_buffer { dma_addr_t dma_addr; @@ -229,7 +202,24 @@ struct efx_rx_buffer { struct page *page; char *data; unsigned int len; - dma_addr_t unmap_addr; +}; + +/** + * struct efx_rx_page_state - Page-based rx buffer state + * + * Inserted at the start of every page allocated for receive buffers. + * Used to facilitate sharing dma mappings between recycled rx buffers + * and those passed up to the kernel. + * + * @refcnt: Number of struct efx_rx_buffer's referencing this page. + * When refcnt falls to zero, the page is unmapped for dma + * @dma_addr: The dma address of this page. + */ +struct efx_rx_page_state { + unsigned refcnt; + dma_addr_t dma_addr; + + unsigned int __pad[0] ____cacheline_aligned; }; /** @@ -242,10 +232,6 @@ struct efx_rx_buffer { * @added_count: Number of buffers added to the receive queue. * @notified_count: Number of buffers given to NIC (<= @added_count). * @removed_count: Number of buffers removed from the receive queue. - * @add_lock: Receive queue descriptor add spin lock. - * This lock must be held in order to add buffers to the RX - * descriptor ring (rxd and buffer) and to update added_count (but - * not removed_count). * @max_fill: RX descriptor maximum fill level (<= ring size) * @fast_fill_trigger: RX descriptor fill level that will trigger a fast fill * (<= @max_fill) @@ -259,12 +245,7 @@ struct efx_rx_buffer { * overflow was observed. It should never be set. * @alloc_page_count: RX allocation strategy counter. * @alloc_skb_count: RX allocation strategy counter. - * @work: Descriptor push work thread - * @buf_page: Page for next RX buffer. - * We can use a single page for multiple RX buffers. This tracks - * the remaining space in the allocation. - * @buf_dma_addr: Page's DMA address. - * @buf_data: Page's host address. + * @slow_fill: Timer used to defer efx_nic_generate_fill_event(). * @flushed: Use when handling queue flushing */ struct efx_rx_queue { @@ -277,7 +258,6 @@ struct efx_rx_queue { int added_count; int notified_count; int removed_count; - spinlock_t add_lock; unsigned int max_fill; unsigned int fast_fill_trigger; unsigned int fast_fill_limit; @@ -285,12 +265,9 @@ struct efx_rx_queue { unsigned int min_overfill; unsigned int alloc_page_count; unsigned int alloc_skb_count; - struct delayed_work work; + struct timer_list slow_fill; unsigned int slow_fill_count; - struct page *buf_page; - dma_addr_t buf_dma_addr; - char *buf_data; enum efx_flush_state flushed; }; @@ -336,7 +313,7 @@ enum efx_rx_alloc_method { * @eventq: Event queue buffer * @eventq_read_ptr: Event queue read pointer * @last_eventq_read_ptr: Last event queue read pointer value. - * @eventq_magic: Event queue magic value for driver-generated test events + * @magic_count: Event queue test event count * @irq_count: Number of IRQs since last adaptive moderation decision * @irq_mod_score: IRQ moderation score * @rx_alloc_level: Watermark based heuristic counter for pushing descriptors @@ -367,7 +344,7 @@ struct efx_channel { struct efx_special_buffer eventq; unsigned int eventq_read_ptr; unsigned int last_eventq_read_ptr; - unsigned int eventq_magic; + unsigned int magic_count; unsigned int irq_count; unsigned int irq_mod_score; @@ -658,6 +635,7 @@ union efx_multicast_hash { * @interrupt_mode: Interrupt mode * @irq_rx_adaptive: Adaptive IRQ moderation enabled for RX event queues * @irq_rx_moderation: IRQ moderation time for RX event queues + * @msg_enable: Log message enable flags * @state: Device state flag. Serialised by the rtnl_lock. * @reset_pending: Pending reset method (normally RESET_TYPE_NONE) * @tx_queue: TX DMA queues @@ -669,6 +647,7 @@ union efx_multicast_hash { * @n_tx_channels: Number of channels used for TX * @rx_buffer_len: RX buffer length * @rx_buffer_order: Order (log2) of number of pages for each RX buffer + * @rx_indir_table: Indirection table for RSS * @int_error_count: Number of internal errors seen recently * @int_error_expire: Time at which error count will be expired * @irq_status: Interrupt status buffer @@ -740,6 +719,7 @@ struct efx_nic { enum efx_int_mode interrupt_mode; bool irq_rx_adaptive; unsigned int irq_rx_moderation; + u32 msg_enable; enum nic_state state; enum reset_type reset_pending; @@ -754,6 +734,8 @@ struct efx_nic { unsigned n_tx_channels; unsigned int rx_buffer_len; unsigned int rx_buffer_order; + u8 rx_hash_key[40]; + u32 rx_indir_table[128]; unsigned int_error_count; unsigned long int_error_expire; @@ -866,7 +848,8 @@ static inline unsigned int efx_port_num(struct efx_nic *efx) * @evq_ptr_tbl_base: Event queue pointer table base address * @evq_rptr_tbl_base: Event queue read-pointer table base address * @max_dma_mask: Maximum possible DMA mask - * @rx_buffer_padding: Padding added to each RX buffer + * @rx_buffer_hash_size: Size of hash at start of RX buffer + * @rx_buffer_padding: Size of padding at end of RX buffer * @max_interrupt_mode: Highest capability interrupt mode supported * from &enum efx_init_mode. * @phys_addr_channels: Number of channels with physically addressed @@ -910,6 +893,7 @@ struct efx_nic_type { unsigned int evq_ptr_tbl_base; unsigned int evq_rptr_tbl_base; u64 max_dma_mask; + unsigned int rx_buffer_hash_size; unsigned int rx_buffer_padding; unsigned int max_interrupt_mode; unsigned int phys_addr_channels; |