--- /dev/null
+FILE_LICENCE ( GPL2_ONLY );
+
+/*
+ * Data types and structure for HAL - NIC interface.
+ *
+ */
+
+#ifndef _NXHAL_NIC_INTERFACE_H_
+#define _NXHAL_NIC_INTERFACE_H_
+
+/*****************************************************************************
+ * Simple Types
+ *****************************************************************************/
+
+typedef U32 nx_reg_addr_t;
+
+/*****************************************************************************
+ * Root crb-based firmware commands
+ *****************************************************************************/
+
+/* CRB Root Command
+
+ A single set of crbs is used across all physical/virtual
+ functions for capability queries, initialization, and
+ context creation/destruction.
+
+ There are 4 CRBS:
+ Command/Response CRB
+ Argument1 CRB
+ Argument2 CRB
+ Argument3 CRB
+ Signature CRB
+
+ The cmd/rsp crb is always intiated by the host via
+ a command code and always responded by the card with
+ a response code. The cmd and rsp codes are disjoint.
+ The sequence of use is always CMD, RSP, CLEAR CMD.
+
+ The arguments are for passing in command specific
+ and response specific parameters/data.
+
+ The signature is composed of a magic value, the
+ pci function id, and a command sequence id:
+ [7:0] = pci function
+ [15:8] = version
+ [31:16] = magic of 0xcafe
+
+ The pci function allows the card to take correct
+ action for the given particular commands.
+ The firmware will attempt to detect
+ an errant driver that has died while holding
+ the root crb hardware lock. Such an error condition
+ shows up as the cmd/rsp crb stuck in a non-clear state.
+
+ Interface Sequence:
+ Host always makes requests and firmware always responds.
+ Note that data field is always set prior to command field.
+
+ [READ] CMD/RSP CRB ARGUMENT FIELD
+ Host grab lock
+ Host -> CMD optional parameter
+ FW <- (Good) RSP-OK DATA
+ FW <- (Fail) RSP-FAIL optional failure code
+ Host -> CLEAR
+ Host release lock
+
+ [WRITE] CMD/RSP CRB ARGUMENT FIELD
+ Host grab lock
+ Host -> CMD DATA
+ FW <- (Good) RSP-OK optional write status
+ FW <- (Write) RSP-FAIL optional failure code
+ Host -> CLEAR
+ Host release lock
+
+*/
+
+
+/*****************************************************************************
+ * CMD/RSP
+ *****************************************************************************/
+
+#define NX_CDRP_SIGNATURE_TO_PCIFN(sign) ((sign) & 0xff)
+#define NX_CDRP_SIGNATURE_TO_VERSION(sign) (((sign)>>8) & 0xff)
+#define NX_CDRP_SIGNATURE_TO_MAGIC(sign) (((sign)>>16) & 0xffff)
+#define NX_CDRP_SIGNATURE_VALID(sign) \
+ ( NX_CDRP_SIGNATURE_TO_MAGIC(sign) == 0xcafe && \
+ NX_CDRP_SIGNATURE_TO_PCIFN(sign) < 8)
+#define NX_CDRP_SIGNATURE_MAKE(pcifn,version) \
+ ( ((pcifn) & 0xff) | \
+ (((version) & 0xff) << 8) | \
+ (0xcafe << 16) )
+
+#define NX_CDRP_CLEAR 0x00000000
+#define NX_CDRP_CMD_BIT 0x80000000
+
+/* All responses must have the NX_CDRP_CMD_BIT cleared
+ * in the crb NX_CDRP_CRB_OFFSET. */
+#define NX_CDRP_FORM_RSP(rsp) (rsp)
+#define NX_CDRP_IS_RSP(rsp) (((rsp) & NX_CDRP_CMD_BIT) == 0)
+
+#define NX_CDRP_RSP_OK 0x00000001
+#define NX_CDRP_RSP_FAIL 0x00000002
+#define NX_CDRP_RSP_TIMEOUT 0x00000003
+
+/* All commands must have the NX_CDRP_CMD_BIT set in
+ * the crb NX_CDRP_CRB_OFFSET.
+ * The macros below do not have it explicitly set to
+ * allow their use in lookup tables */
+#define NX_CDRP_FORM_CMD(cmd) (NX_CDRP_CMD_BIT | (cmd))
+#define NX_CDRP_IS_CMD(cmd) (((cmd) & NX_CDRP_CMD_BIT) != 0)
+
+/* [CMD] Capability Vector [RSP] Capability Vector */
+#define NX_CDRP_CMD_SUBMIT_CAPABILITIES 0x00000001
+
+/* [CMD] - [RSP] Query Value */
+#define NX_CDRP_CMD_READ_MAX_RDS_PER_CTX 0x00000002
+
+/* [CMD] - [RSP] Query Value */
+#define NX_CDRP_CMD_READ_MAX_SDS_PER_CTX 0x00000003
+
+/* [CMD] - [RSP] Query Value */
+#define NX_CDRP_CMD_READ_MAX_RULES_PER_CTX 0x00000004
+
+/* [CMD] - [RSP] Query Value */
+#define NX_CDRP_CMD_READ_MAX_RX_CTX 0x00000005
+
+/* [CMD] - [RSP] Query Value */
+#define NX_CDRP_CMD_READ_MAX_TX_CTX 0x00000006
+
+/* [CMD] Rx Config DMA Addr [RSP] rcode */
+#define NX_CDRP_CMD_CREATE_RX_CTX 0x00000007
+
+/* [CMD] Rx Context Handle, Reset Kind [RSP] rcode */
+#define NX_CDRP_CMD_DESTROY_RX_CTX 0x00000008
+
+/* [CMD] Tx Config DMA Addr [RSP] rcode */
+#define NX_CDRP_CMD_CREATE_TX_CTX 0x00000009
+
+/* [CMD] Tx Context Handle, Reset Kind [RSP] rcode */
+#define NX_CDRP_CMD_DESTROY_TX_CTX 0x0000000a
+
+/* [CMD] Stat setup dma addr - [RSP] Handle, rcode */
+#define NX_CDRP_CMD_SETUP_STATISTICS 0x0000000e
+
+/* [CMD] Handle - [RSP] rcode */
+#define NX_CDRP_CMD_GET_STATISTICS 0x0000000f
+
+/* [CMD] Handle - [RSP] rcode */
+#define NX_CDRP_CMD_DELETE_STATISTICS 0x00000010
+
+#define NX_CDRP_CMD_MAX 0x00000011
+
+/*****************************************************************************
+ * Capabilities
+ *****************************************************************************/
+
+#define NX_CAP_BIT(class, bit) (1 << bit)
+
+/* Class 0 (i.e. ARGS 1)
+ */
+#define NX_CAP0_LEGACY_CONTEXT NX_CAP_BIT(0, 0)
+#define NX_CAP0_MULTI_CONTEXT NX_CAP_BIT(0, 1)
+#define NX_CAP0_LEGACY_MN NX_CAP_BIT(0, 2)
+#define NX_CAP0_LEGACY_MS NX_CAP_BIT(0, 3)
+#define NX_CAP0_CUT_THROUGH NX_CAP_BIT(0, 4)
+#define NX_CAP0_LRO NX_CAP_BIT(0, 5)
+#define NX_CAP0_LSO NX_CAP_BIT(0, 6)
+
+/* Class 1 (i.e. ARGS 2)
+ */
+#define NX_CAP1_NIC NX_CAP_BIT(1, 0)
+#define NX_CAP1_PXE NX_CAP_BIT(1, 1)
+#define NX_CAP1_CHIMNEY NX_CAP_BIT(1, 2)
+#define NX_CAP1_LSA NX_CAP_BIT(1, 3)
+#define NX_CAP1_RDMA NX_CAP_BIT(1, 4)
+#define NX_CAP1_ISCSI NX_CAP_BIT(1, 5)
+#define NX_CAP1_FCOE NX_CAP_BIT(1, 6)
+
+/* Class 2 (i.e. ARGS 3)
+ */
+
+/*****************************************************************************
+ * Rules
+ *****************************************************************************/
+
+typedef U32 nx_rx_rule_type_t;
+
+#define NX_RX_RULETYPE_DEFAULT 0
+#define NX_RX_RULETYPE_MAC 1
+#define NX_RX_RULETYPE_MAC_VLAN 2
+#define NX_RX_RULETYPE_MAC_RSS 3
+#define NX_RX_RULETYPE_MAC_VLAN_RSS 4
+#define NX_RX_RULETYPE_MAX 5
+
+typedef U32 nx_rx_rule_cmd_t;
+
+#define NX_RX_RULECMD_ADD 0
+#define NX_RX_RULECMD_REMOVE 1
+#define NX_RX_RULECMD_MAX 2
+
+typedef struct nx_rx_rule_arg_s {
+ union {
+ struct {
+ char mac[6];
+ } m;
+ struct {
+ char mac[6];
+ char vlan;
+ } mv;
+ struct {
+ char mac[6];
+ } mr;
+ struct {
+ char mac[6];
+ char vlan;
+ } mvr;
+ };
+ /* will be union of all the different args for rules */
+ U64 data;
+} nx_rx_rule_arg_t;
+
+typedef struct nx_rx_rule_s {
+ U32 id;
+ U32 active;
+ nx_rx_rule_arg_t arg;
+ nx_rx_rule_type_t type;
+} nx_rx_rule_t;
+
+/* MSG - REQUIRES TX CONTEXT */
+
+/* The rules can be added/deleted from both the
+ * host and card sides so rq/rsp are similar.
+ */
+typedef struct nx_hostmsg_rx_rule_s {
+ nx_rx_rule_cmd_t cmd;
+ nx_rx_rule_t rule;
+} nx_hostmsg_rx_rule_t;
+
+typedef struct nx_cardmsg_rx_rule_s {
+ nx_rcode_t rcode;
+ nx_rx_rule_cmd_t cmd;
+ nx_rx_rule_t rule;
+} nx_cardmsg_rx_rule_t;
+
+
+/*****************************************************************************
+ * Common to Rx/Tx contexts
+ *****************************************************************************/
+
+/*
+ * Context states
+ */
+
+typedef U32 nx_host_ctx_state_t;
+
+#define NX_HOST_CTX_STATE_FREED 0 /* Invalid state */
+#define NX_HOST_CTX_STATE_ALLOCATED 1 /* Not committed */
+/* The following states imply FW is aware of context */
+#define NX_HOST_CTX_STATE_ACTIVE 2
+#define NX_HOST_CTX_STATE_DISABLED 3
+#define NX_HOST_CTX_STATE_QUIESCED 4
+#define NX_HOST_CTX_STATE_MAX 5
+
+/*
+ * Interrupt mask crb use must be set identically on the Tx
+ * and Rx context configs across a pci function
+ */
+
+/* Rx and Tx have unique interrupt/crb */
+#define NX_HOST_INT_CRB_MODE_UNIQUE 0
+/* Rx and Tx share a common interrupt/crb */
+#define NX_HOST_INT_CRB_MODE_SHARED 1 /* <= LEGACY */
+/* Rx does not use a crb */
+#define NX_HOST_INT_CRB_MODE_NORX 2
+/* Tx does not use a crb */
+#define NX_HOST_INT_CRB_MODE_NOTX 3
+/* Neither Rx nor Tx use a crb */
+#define NX_HOST_INT_CRB_MODE_NORXTX 4
+
+/*
+ * Destroy Rx/Tx
+ */
+
+#define NX_DESTROY_CTX_RESET 0
+#define NX_DESTROY_CTX_D3_RESET 1
+#define NX_DESTROY_CTX_MAX 2
+
+
+/*****************************************************************************
+ * Tx
+ *****************************************************************************/
+
+/*
+ * Components of the host-request for Tx context creation.
+ * CRB - DOES NOT REQUIRE Rx/TX CONTEXT
+ */
+
+typedef struct nx_hostrq_cds_ring_s {
+ U64 host_phys_addr; /* Ring base addr */
+ U32 ring_size; /* Ring entries */
+ U32 rsvd; /* Padding */
+} nx_hostrq_cds_ring_t;
+
+typedef struct nx_hostrq_tx_ctx_s {
+ U64 host_rsp_dma_addr; /* Response dma'd here */
+ U64 cmd_cons_dma_addr; /* */
+ U64 dummy_dma_addr; /* */
+ U32 capabilities[4]; /* Flag bit vector */
+ U32 host_int_crb_mode; /* Interrupt crb usage */
+ U32 rsvd1; /* Padding */
+ U16 rsvd2; /* Padding */
+ U16 interrupt_ctl;
+ U16 msi_index;
+ U16 rsvd3; /* Padding */
+ nx_hostrq_cds_ring_t cds_ring; /* Desc of cds ring */
+ U8 reserved[128]; /* future expansion */
+} nx_hostrq_tx_ctx_t;
+
+typedef struct nx_cardrsp_cds_ring_s {
+ U32 host_producer_crb; /* Crb to use */
+ U32 interrupt_crb; /* Crb to use */
+} nx_cardrsp_cds_ring_t;
+
+typedef struct nx_cardrsp_tx_ctx_s {
+ U32 host_ctx_state; /* Starting state */
+ U16 context_id; /* Handle for context */
+ U8 phys_port; /* Physical id of port */
+ U8 virt_port; /* Virtual/Logical id of port */
+ nx_cardrsp_cds_ring_t cds_ring; /* Card cds settings */
+ U8 reserved[128]; /* future expansion */
+} nx_cardrsp_tx_ctx_t;
+
+#define SIZEOF_HOSTRQ_TX(HOSTRQ_TX) \
+ ( sizeof(HOSTRQ_TX))
+
+#define SIZEOF_CARDRSP_TX(CARDRSP_TX) \
+ ( sizeof(CARDRSP_TX))
+
+/*****************************************************************************
+ * Rx
+ *****************************************************************************/
+
+/*
+ * RDS ring mapping to producer crbs
+ */
+
+/* Each ring has a unique crb */
+#define NX_HOST_RDS_CRB_MODE_UNIQUE 0 /* <= LEGACY */
+
+/* All configured RDS Rings share common crb:
+ 1 Ring - same as unique
+ 2 Rings - 16, 16
+ 3 Rings - 10, 10, 10 */
+#define NX_HOST_RDS_CRB_MODE_SHARED 1
+
+/* Bit usage is specified per-ring using the
+ ring's size. Sum of bit lengths must be <= 32.
+ Packing is [Ring N] ... [Ring 1][Ring 0] */
+#define NX_HOST_RDS_CRB_MODE_CUSTOM 2
+#define NX_HOST_RDS_CRB_MODE_MAX 3
+
+
+/*
+ * RDS Ting Types
+ */
+
+#define NX_RDS_RING_TYPE_NORMAL 0
+#define NX_RDS_RING_TYPE_JUMBO 1
+#define NX_RDS_RING_TYPE_LRO 2
+#define NX_RDS_RING_TYPE_MAX 3
+
+/*
+ * Components of the host-request for Rx context creation.
+ * CRB - DOES NOT REQUIRE Rx/TX CONTEXT
+ */
+
+typedef struct nx_hostrq_sds_ring_s {
+ U64 host_phys_addr; /* Ring base addr */
+ U32 ring_size; /* Ring entries */
+ U16 msi_index;
+ U16 rsvd; /* Padding */
+} nx_hostrq_sds_ring_t;
+
+typedef struct nx_hostrq_rds_ring_s {
+ U64 host_phys_addr; /* Ring base addr */
+ U64 buff_size; /* Packet buffer size */
+ U32 ring_size; /* Ring entries */
+ U32 ring_kind; /* Class of ring */
+} nx_hostrq_rds_ring_t;
+
+typedef struct nx_hostrq_rx_ctx_s {
+ U64 host_rsp_dma_addr; /* Response dma'd here */
+ U32 capabilities[4]; /* Flag bit vector */
+ U32 host_int_crb_mode; /* Interrupt crb usage */
+ U32 host_rds_crb_mode; /* RDS crb usage */
+ /* These ring offsets are relative to data[0] below */
+ U32 rds_ring_offset; /* Offset to RDS config */
+ U32 sds_ring_offset; /* Offset to SDS config */
+ U16 num_rds_rings; /* Count of RDS rings */
+ U16 num_sds_rings; /* Count of SDS rings */
+ U16 rsvd1; /* Padding */
+ U16 rsvd2; /* Padding */
+ U8 reserved[128]; /* reserve space for future expansion*/
+ /* MUST BE 64-bit aligned.
+ The following is packed:
+ - N hostrq_rds_rings
+ - N hostrq_sds_rings */
+ char data[0];
+} nx_hostrq_rx_ctx_t;
+
+typedef struct nx_cardrsp_rds_ring_s {
+ U32 host_producer_crb; /* Crb to use */
+ U32 rsvd1; /* Padding */
+} nx_cardrsp_rds_ring_t;
+
+typedef struct nx_cardrsp_sds_ring_s {
+ U32 host_consumer_crb; /* Crb to use */
+ U32 interrupt_crb; /* Crb to use */
+} nx_cardrsp_sds_ring_t;
+
+typedef struct nx_cardrsp_rx_ctx_s {
+ /* These ring offsets are relative to data[0] below */
+ U32 rds_ring_offset; /* Offset to RDS config */
+ U32 sds_ring_offset; /* Offset to SDS config */
+ U32 host_ctx_state; /* Starting State */
+ U32 num_fn_per_port; /* How many PCI fn share the port */
+ U16 num_rds_rings; /* Count of RDS rings */
+ U16 num_sds_rings; /* Count of SDS rings */
+ U16 context_id; /* Handle for context */
+ U8 phys_port; /* Physical id of port */
+ U8 virt_port; /* Virtual/Logical id of port */
+ U8 reserved[128]; /* save space for future expansion */
+ /* MUST BE 64-bit aligned.
+ The following is packed:
+ - N cardrsp_rds_rings
+ - N cardrs_sds_rings */
+ char data[0];
+} nx_cardrsp_rx_ctx_t;
+
+#define SIZEOF_HOSTRQ_RX(HOSTRQ_RX, rds_rings, sds_rings) \
+ ( sizeof(HOSTRQ_RX) + \
+ (rds_rings)*(sizeof (nx_hostrq_rds_ring_t)) + \
+ (sds_rings)*(sizeof (nx_hostrq_sds_ring_t)) )
+
+#define SIZEOF_CARDRSP_RX(CARDRSP_RX, rds_rings, sds_rings) \
+ ( sizeof(CARDRSP_RX) + \
+ (rds_rings)*(sizeof (nx_cardrsp_rds_ring_t)) + \
+ (sds_rings)*(sizeof (nx_cardrsp_sds_ring_t)) )
+
+
+/*****************************************************************************
+ * Statistics
+ *****************************************************************************/
+
+/*
+ * The model of statistics update to use
+ */
+
+#define NX_STATISTICS_MODE_INVALID 0
+
+/* Permanent setup; Updates are only sent on explicit request
+ (NX_CDRP_CMD_GET_STATISTICS) */
+#define NX_STATISTICS_MODE_PULL 1
+
+/* Permanent setup; Updates are sent automatically and on
+ explicit request (NX_CDRP_CMD_GET_STATISTICS) */
+#define NX_STATISTICS_MODE_PUSH 2
+
+/* One time stat update. */
+#define NX_STATISTICS_MODE_SINGLE_SHOT 3
+
+#define NX_STATISTICS_MODE_MAX 4
+
+/*
+ * What set of stats
+ */
+#define NX_STATISTICS_TYPE_INVALID 0
+#define NX_STATISTICS_TYPE_NIC_RX_CORE 1
+#define NX_STATISTICS_TYPE_NIC_TX_CORE 2
+#define NX_STATISTICS_TYPE_NIC_RX_ALL 3
+#define NX_STATISTICS_TYPE_NIC_TX_ALL 4
+#define NX_STATISTICS_TYPE_MAX 5
+
+
+/*
+ * Request to setup statistics gathering.
+ * CRB - DOES NOT REQUIRE Rx/TX CONTEXT
+ */
+
+typedef struct nx_hostrq_stat_setup_s {
+ U64 host_stat_buffer; /* Where to dma stats */
+ U32 host_stat_size; /* Size of stat buffer */
+ U16 context_id; /* Which context */
+ U16 stat_type; /* What class of stats */
+ U16 stat_mode; /* When to update */
+ U16 stat_interval; /* Frequency of update */
+} nx_hostrq_stat_setup_t;
+
+
+
+#endif /* _NXHAL_NIC_INTERFACE_H_ */
Code Review / kvmfornfv.git / blobdiff