drivers/net/ethernet/brocade/bna/bfa_ioc.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/brocade/bna/bfa_ioc.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/brocade/bna/bfa_ioc.h
Extension
.h
Size
11378 bytes
Lines
353
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct bfa_pcidev {
	int	pci_slot;
	u8	pci_func;
	u16	device_id;
	u16	ssid;
	void	__iomem *pci_bar_kva;
};

/* Structure used to remember the DMA-able memory block's KVA and Physical
 * Address
 */
struct bfa_dma {
	void	*kva;	/* ! Kernel virtual address	*/
	u64	pa;	/* ! Physical address		*/
};

#define BFA_DMA_ALIGN_SZ	256

/* smem size for Crossbow and Catapult */
#define BFI_SMEM_CB_SIZE	0x200000U	/* ! 2MB for crossbow	*/
#define BFI_SMEM_CT_SIZE	0x280000U	/* ! 2.5MB for catapult	*/

/* BFA dma address assignment macro. (big endian format) */
#define bfa_dma_be_addr_set(dma_addr, pa)	\
		__bfa_dma_be_addr_set(&dma_addr, (u64)pa)
static inline void
__bfa_dma_be_addr_set(union bfi_addr_u *dma_addr, u64 pa)
{
	dma_addr->a32.addr_lo = (u32) htonl(pa);
	dma_addr->a32.addr_hi = (u32) htonl(upper_32_bits(pa));
}

#define bfa_alen_set(__alen, __len, __pa)	\
	__bfa_alen_set(__alen, __len, (u64)__pa)

static inline void
__bfa_alen_set(struct bfi_alen *alen, u32 len, u64 pa)
{
	alen->al_len = cpu_to_be32(len);
	bfa_dma_be_addr_set(alen->al_addr, pa);
}

struct bfa_ioc_regs {
	void __iomem *hfn_mbox_cmd;
	void __iomem *hfn_mbox;
	void __iomem *lpu_mbox_cmd;
	void __iomem *lpu_mbox;
	void __iomem *lpu_read_stat;
	void __iomem *pss_ctl_reg;
	void __iomem *pss_err_status_reg;
	void __iomem *app_pll_fast_ctl_reg;
	void __iomem *app_pll_slow_ctl_reg;
	void __iomem *ioc_sem_reg;
	void __iomem *ioc_usage_sem_reg;
	void __iomem *ioc_init_sem_reg;
	void __iomem *ioc_usage_reg;
	void __iomem *host_page_num_fn;
	void __iomem *heartbeat;
	void __iomem *ioc_fwstate;
	void __iomem *alt_ioc_fwstate;
	void __iomem *ll_halt;
	void __iomem *alt_ll_halt;
	void __iomem *err_set;
	void __iomem *ioc_fail_sync;
	void __iomem *shirq_isr_next;
	void __iomem *shirq_msk_next;
	void __iomem *smem_page_start;
	u32	smem_pg0;
};

/* IOC Mailbox structures */
typedef void (*bfa_mbox_cmd_cbfn_t)(void *cbarg);
struct bfa_mbox_cmd {
	struct list_head	qe;
	bfa_mbox_cmd_cbfn_t     cbfn;
	void		    *cbarg;
	u32     msg[BFI_IOC_MSGSZ];
};

/* IOC mailbox module */
typedef void (*bfa_ioc_mbox_mcfunc_t)(void *cbarg, struct bfi_mbmsg *m);
struct bfa_ioc_mbox_mod {
	struct list_head	cmd_q;		/*!< pending mbox queue	*/
	int			nmclass;	/*!< number of handlers */
	struct {
		bfa_ioc_mbox_mcfunc_t	cbfn;	/*!< message handlers	*/
		void			*cbarg;
	} mbhdlr[BFI_MC_MAX];
};

Annotation

Implementation Notes