drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.h
Extension
.h
Size
2571 bytes
Lines
65
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

#ifndef _DCB_82598_CONFIG_H_
#define _DCB_82598_CONFIG_H_

/* DCB register definitions */

#define IXGBE_DPMCS_MTSOS_SHIFT 16
#define IXGBE_DPMCS_TDPAC       0x00000001 /* 0 Round Robin, 1 DFP - Deficit Fixed Priority */
#define IXGBE_DPMCS_TRM         0x00000010 /* Transmit Recycle Mode */
#define IXGBE_DPMCS_ARBDIS      0x00000040 /* DCB arbiter disable */
#define IXGBE_DPMCS_TSOEF       0x00080000 /* TSO Expand Factor: 0=x4, 1=x2 */

#define IXGBE_RUPPBMR_MQA       0x80000000 /* Enable UP to queue mapping */

#define IXGBE_RT2CR_MCL_SHIFT   12 /* Offset to Max Credit Limit setting */
#define IXGBE_RT2CR_LSP         0x80000000 /* LSP enable bit */

#define IXGBE_RDRXCTL_MPBEN     0x00000010 /* DMA config for multiple packet buffers enable */
#define IXGBE_RDRXCTL_MCEN      0x00000040 /* DMA config for multiple cores (RSS) enable */

#define IXGBE_TDTQ2TCCR_MCL_SHIFT   12
#define IXGBE_TDTQ2TCCR_BWG_SHIFT   9
#define IXGBE_TDTQ2TCCR_GSP     0x40000000
#define IXGBE_TDTQ2TCCR_LSP     0x80000000

#define IXGBE_TDPT2TCCR_MCL_SHIFT   12
#define IXGBE_TDPT2TCCR_BWG_SHIFT   9
#define IXGBE_TDPT2TCCR_GSP     0x40000000
#define IXGBE_TDPT2TCCR_LSP     0x80000000

#define IXGBE_PDPMCS_TPPAC      0x00000020 /* 0 Round Robin, 1 for DFP - Deficit Fixed Priority */
#define IXGBE_PDPMCS_ARBDIS     0x00000040 /* Arbiter disable */
#define IXGBE_PDPMCS_TRM        0x00000100 /* Transmit Recycle Mode enable */

#define IXGBE_DTXCTL_ENDBUBD    0x00000004 /* Enable DBU buffer division */

#define IXGBE_TXPBSIZE_40KB     0x0000A000 /* 40KB Packet Buffer */
#define IXGBE_RXPBSIZE_48KB     0x0000C000 /* 48KB Packet Buffer */
#define IXGBE_RXPBSIZE_64KB     0x00010000 /* 64KB Packet Buffer */
#define IXGBE_RXPBSIZE_80KB     0x00014000 /* 80KB Packet Buffer */

#define IXGBE_RDRXCTL_RDMTS_1_2 0x00000000

/* DCB hardware-specific driver APIs */

/* DCB PFC functions */
int ixgbe_dcb_config_pfc_82598(struct ixgbe_hw *, u8 pfc_en);

/* DCB hw initialization */
int ixgbe_dcb_config_rx_arbiter_82598(struct ixgbe_hw *hw, u16 *refill,
				      u16 *max, u8 *prio_type);

int ixgbe_dcb_config_tx_desc_arbiter_82598(struct ixgbe_hw *hw, u16 *refill,
					   u16 *max, u8 *bwg_id, u8 *prio_type);

int ixgbe_dcb_config_tx_data_arbiter_82598(struct ixgbe_hw *hw, u16 *refill,
					   u16 *max, u8 *bwg_id, u8 *prio_type);

int ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
			      u16 *max, u8 *bwg_id, u8 *prio_type);

#endif /* _DCB_82598_CONFIG_H */

Annotation

Implementation Notes