Commit 8b1c9dc4 authored by Don Wood's avatar Don Wood Committed by Roland Dreier
Browse files

RDMA/nes: Implement Terminate Packet 



Implement the sending and receiving of Terminate packets.

Signed-off-by: default avatarDon Wood <donald.e.wood@intel.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 3c28b445

drivers/infiniband/hw/nes/nes.h

+1 −1
Original line number Diff line number Diff line
@@ -523,7 +523,7 @@ int nes_cm_disconn(struct nes_qp *); 
void nes_cm_disconn_worker(void *);



/* nes_verbs.c */

int nes_hw_modify_qp(struct nes_device *, struct nes_qp *, u32, u32);

int nes_hw_modify_qp(struct nes_device *, struct nes_qp *, u32, u32, u32);

int nes_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);

struct nes_ib_device *nes_init_ofa_device(struct net_device *);

void nes_destroy_ofa_device(struct nes_ib_device *);

drivers/infiniband/hw/nes/nes_cm.h

+0 −2
Original line number Diff line number Diff line
@@ -410,8 +410,6 @@ struct nes_cm_ops { 
int schedule_nes_timer(struct nes_cm_node *, struct sk_buff *,

		enum nes_timer_type, int, int);



int nes_cm_disconn(struct nes_qp *);



int nes_accept(struct iw_cm_id *, struct iw_cm_conn_param *);

int nes_reject(struct iw_cm_id *, const void *, u8);

int nes_connect(struct iw_cm_id *, struct iw_cm_conn_param *);

drivers/infiniband/hw/nes/nes_hw.c

+481 −220

File changed.

Preview size limit exceeded, changes collapsed.

drivers/infiniband/hw/nes/nes_hw.h

+91 −0
Original line number Diff line number Diff line
@@ -241,6 +241,7 @@ enum nes_cqp_stag_wqeword_idx { 
};



#define NES_CQP_OP_IWARP_STATE_SHIFT 28

#define NES_CQP_OP_TERMLEN_SHIFT     28



enum nes_cqp_qp_bits {

	NES_CQP_QP_ARP_VALID = (1<<8),
@@ -265,6 +266,8 @@ enum nes_cqp_qp_bits { 
	NES_CQP_QP_IWARP_STATE_TERMINATE = (5<<NES_CQP_OP_IWARP_STATE_SHIFT),

	NES_CQP_QP_IWARP_STATE_ERROR = (6<<NES_CQP_OP_IWARP_STATE_SHIFT),

	NES_CQP_QP_IWARP_STATE_MASK = (7<<NES_CQP_OP_IWARP_STATE_SHIFT),

	NES_CQP_QP_TERM_DONT_SEND_FIN = (1<<24),

	NES_CQP_QP_TERM_DONT_SEND_TERM_MSG = (1<<25),

	NES_CQP_QP_RESET = (1<<31),

};
@@ -633,11 +636,14 @@ enum nes_aeqe_bits { 
	NES_AEQE_INBOUND_RDMA = (1<<19),

	NES_AEQE_IWARP_STATE_MASK = (7<<20),

	NES_AEQE_TCP_STATE_MASK = (0xf<<24),

	NES_AEQE_Q2_DATA_WRITTEN = (0x3<<28),

	NES_AEQE_VALID = (1<<31),

};



#define NES_AEQE_IWARP_STATE_SHIFT	20

#define NES_AEQE_TCP_STATE_SHIFT	24

#define NES_AEQE_Q2_DATA_ETHERNET       (1<<28)

#define NES_AEQE_Q2_DATA_MPA            (1<<29)



enum nes_aeqe_iwarp_state {

	NES_AEQE_IWARP_STATE_NON_EXISTANT = 0,
@@ -1119,6 +1125,7 @@ struct nes_adapter { 
	u8            netdev_max;	/* from host nic address count in EEPROM */

	u8            port_count;

	u8            virtwq;

	u8            send_term_ok;

	u8            et_use_adaptive_rx_coalesce;

	u8            adapter_fcn_count;

	u8 pft_mcast_map[NES_PFT_SIZE];
@@ -1217,6 +1224,90 @@ struct nes_ib_device { 
	u32 num_pd;

};



enum nes_hdrct_flags {

	DDP_LEN_FLAG                    = 0x80,

	DDP_HDR_FLAG                    = 0x40,

	RDMA_HDR_FLAG                   = 0x20

};



enum nes_term_layers {

	LAYER_RDMA			= 0,

	LAYER_DDP			= 1,

	LAYER_MPA			= 2

};



enum nes_term_error_types {

	RDMAP_CATASTROPHIC		= 0,

	RDMAP_REMOTE_PROT		= 1,

	RDMAP_REMOTE_OP			= 2,

	DDP_CATASTROPHIC		= 0,

	DDP_TAGGED_BUFFER		= 1,

	DDP_UNTAGGED_BUFFER		= 2,

	DDP_LLP				= 3

};



enum nes_term_rdma_errors {

	RDMAP_INV_STAG			= 0x00,

	RDMAP_INV_BOUNDS		= 0x01,

	RDMAP_ACCESS			= 0x02,

	RDMAP_UNASSOC_STAG		= 0x03,

	RDMAP_TO_WRAP			= 0x04,

	RDMAP_INV_RDMAP_VER		= 0x05,

	RDMAP_UNEXPECTED_OP		= 0x06,

	RDMAP_CATASTROPHIC_LOCAL	= 0x07,

	RDMAP_CATASTROPHIC_GLOBAL	= 0x08,

	RDMAP_CANT_INV_STAG		= 0x09,

	RDMAP_UNSPECIFIED		= 0xff

};



enum nes_term_ddp_errors {

	DDP_CATASTROPHIC_LOCAL		= 0x00,

	DDP_TAGGED_INV_STAG		= 0x00,

	DDP_TAGGED_BOUNDS		= 0x01,

	DDP_TAGGED_UNASSOC_STAG		= 0x02,

	DDP_TAGGED_TO_WRAP		= 0x03,

	DDP_TAGGED_INV_DDP_VER		= 0x04,

	DDP_UNTAGGED_INV_QN		= 0x01,

	DDP_UNTAGGED_INV_MSN_NO_BUF	= 0x02,

	DDP_UNTAGGED_INV_MSN_RANGE	= 0x03,

	DDP_UNTAGGED_INV_MO		= 0x04,

	DDP_UNTAGGED_INV_TOO_LONG	= 0x05,

	DDP_UNTAGGED_INV_DDP_VER	= 0x06

};



enum nes_term_mpa_errors {

	MPA_CLOSED			= 0x01,

	MPA_CRC				= 0x02,

	MPA_MARKER			= 0x03,

	MPA_REQ_RSP			= 0x04,

};



struct nes_terminate_hdr {

	u8 layer_etype;

	u8 error_code;

	u8 hdrct;

	u8 rsvd;

};



/* Used to determine how to fill in terminate error codes */

#define IWARP_OPCODE_WRITE		0

#define IWARP_OPCODE_READREQ		1

#define IWARP_OPCODE_READRSP		2

#define IWARP_OPCODE_SEND		3

#define IWARP_OPCODE_SEND_INV		4

#define IWARP_OPCODE_SEND_SE		5

#define IWARP_OPCODE_SEND_SE_INV	6

#define IWARP_OPCODE_TERM		7



/* These values are used only during terminate processing */

#define TERM_DDP_LEN_TAGGED	14

#define TERM_DDP_LEN_UNTAGGED	18

#define TERM_RDMA_LEN		28

#define RDMA_OPCODE_MASK	0x0f

#define RDMA_READ_REQ_OPCODE	1

#define BAD_FRAME_OFFSET	64

#define CQE_MAJOR_DRV		0x8000



#define nes_vlan_rx vlan_hwaccel_receive_skb

#define nes_netif_rx netif_receive_skb

drivers/infiniband/hw/nes/nes_utils.c

+3 −0
Original line number Diff line number Diff line
@@ -183,6 +183,9 @@ int nes_read_eeprom_values(struct nes_device *nesdev, struct nes_adapter *nesada 
		} else if (((major_ver == 2) && (minor_ver > 21)) || ((major_ver > 2) && (major_ver != 255))) {

			nesadapter->virtwq = 1;

		}

		if (((major_ver == 3) && (minor_ver >= 16)) || (major_ver > 3))

			nesadapter->send_term_ok = 1;



		nesadapter->firmware_version = (((u32)(u8)(eeprom_data>>8))  <<  16) +

				(u32)((u8)eeprom_data);