816 lines
19 KiB
C
816 lines
19 KiB
C
/* QLogic qed NIC Driver
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*
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* Copyright (c) 2015 QLogic Corporation
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*
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* This software is available under the terms of the GNU General Public License
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* (GPL) Version 2, available from the file COPYING in the main directory of
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* this source tree.
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*/
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#ifndef _QED_IF_H
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#define _QED_IF_H
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/netdevice.h>
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#include <linux/pci.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#include <linux/io.h>
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#include <linux/compiler.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/qed/common_hsi.h>
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#include <linux/qed/qed_chain.h>
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enum dcbx_protocol_type {
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DCBX_PROTOCOL_ISCSI,
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DCBX_PROTOCOL_FCOE,
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DCBX_PROTOCOL_ROCE,
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DCBX_PROTOCOL_ROCE_V2,
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DCBX_PROTOCOL_ETH,
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DCBX_MAX_PROTOCOL_TYPE
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};
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#define QED_ROCE_PROTOCOL_INDEX (3)
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#ifdef CONFIG_DCB
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#define QED_LLDP_CHASSIS_ID_STAT_LEN 4
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#define QED_LLDP_PORT_ID_STAT_LEN 4
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#define QED_DCBX_MAX_APP_PROTOCOL 32
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#define QED_MAX_PFC_PRIORITIES 8
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#define QED_DCBX_DSCP_SIZE 64
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struct qed_dcbx_lldp_remote {
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u32 peer_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
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u32 peer_port_id[QED_LLDP_PORT_ID_STAT_LEN];
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bool enable_rx;
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bool enable_tx;
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u32 tx_interval;
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u32 max_credit;
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};
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struct qed_dcbx_lldp_local {
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u32 local_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
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u32 local_port_id[QED_LLDP_PORT_ID_STAT_LEN];
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};
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struct qed_dcbx_app_prio {
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u8 roce;
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u8 roce_v2;
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u8 fcoe;
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u8 iscsi;
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u8 eth;
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};
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struct qed_dbcx_pfc_params {
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bool willing;
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bool enabled;
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u8 prio[QED_MAX_PFC_PRIORITIES];
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u8 max_tc;
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};
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enum qed_dcbx_sf_ieee_type {
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QED_DCBX_SF_IEEE_ETHTYPE,
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QED_DCBX_SF_IEEE_TCP_PORT,
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QED_DCBX_SF_IEEE_UDP_PORT,
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QED_DCBX_SF_IEEE_TCP_UDP_PORT
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};
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struct qed_app_entry {
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bool ethtype;
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enum qed_dcbx_sf_ieee_type sf_ieee;
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bool enabled;
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u8 prio;
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u16 proto_id;
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enum dcbx_protocol_type proto_type;
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};
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struct qed_dcbx_params {
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struct qed_app_entry app_entry[QED_DCBX_MAX_APP_PROTOCOL];
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u16 num_app_entries;
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bool app_willing;
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bool app_valid;
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bool app_error;
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bool ets_willing;
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bool ets_enabled;
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bool ets_cbs;
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bool valid;
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u8 ets_pri_tc_tbl[QED_MAX_PFC_PRIORITIES];
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u8 ets_tc_bw_tbl[QED_MAX_PFC_PRIORITIES];
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u8 ets_tc_tsa_tbl[QED_MAX_PFC_PRIORITIES];
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struct qed_dbcx_pfc_params pfc;
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u8 max_ets_tc;
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};
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struct qed_dcbx_admin_params {
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struct qed_dcbx_params params;
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bool valid;
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};
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struct qed_dcbx_remote_params {
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struct qed_dcbx_params params;
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bool valid;
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};
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struct qed_dcbx_operational_params {
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struct qed_dcbx_app_prio app_prio;
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struct qed_dcbx_params params;
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bool valid;
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bool enabled;
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bool ieee;
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bool cee;
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u32 err;
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};
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struct qed_dcbx_get {
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struct qed_dcbx_operational_params operational;
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struct qed_dcbx_lldp_remote lldp_remote;
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struct qed_dcbx_lldp_local lldp_local;
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struct qed_dcbx_remote_params remote;
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struct qed_dcbx_admin_params local;
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};
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#endif
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enum qed_led_mode {
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QED_LED_MODE_OFF,
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QED_LED_MODE_ON,
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QED_LED_MODE_RESTORE
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};
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#define DIRECT_REG_WR(reg_addr, val) writel((u32)val, \
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(void __iomem *)(reg_addr))
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#define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr))
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#define QED_COALESCE_MAX 0xFF
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#define QED_DEFAULT_RX_USECS 12
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/* forward */
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struct qed_dev;
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struct qed_eth_pf_params {
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/* The following parameters are used during HW-init
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* and these parameters need to be passed as arguments
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* to update_pf_params routine invoked before slowpath start
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*/
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u16 num_cons;
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};
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/* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
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struct qed_iscsi_pf_params {
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u64 glbl_q_params_addr;
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u64 bdq_pbl_base_addr[2];
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u32 max_cwnd;
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u16 cq_num_entries;
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u16 cmdq_num_entries;
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u16 dup_ack_threshold;
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u16 tx_sws_timer;
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u16 min_rto;
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u16 min_rto_rt;
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u16 max_rto;
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/* The following parameters are used during HW-init
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* and these parameters need to be passed as arguments
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* to update_pf_params routine invoked before slowpath start
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*/
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u16 num_cons;
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u16 num_tasks;
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/* The following parameters are used during protocol-init */
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u16 half_way_close_timeout;
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u16 bdq_xoff_threshold[2];
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u16 bdq_xon_threshold[2];
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u16 cmdq_xoff_threshold;
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u16 cmdq_xon_threshold;
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u16 rq_buffer_size;
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u8 num_sq_pages_in_ring;
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u8 num_r2tq_pages_in_ring;
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u8 num_uhq_pages_in_ring;
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u8 num_queues;
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u8 log_page_size;
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u8 rqe_log_size;
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u8 max_fin_rt;
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u8 gl_rq_pi;
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u8 gl_cmd_pi;
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u8 debug_mode;
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u8 ll2_ooo_queue_id;
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u8 ooo_enable;
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u8 is_target;
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u8 bdq_pbl_num_entries[2];
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};
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struct qed_rdma_pf_params {
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/* Supplied to QED during resource allocation (may affect the ILT and
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* the doorbell BAR).
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*/
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u32 min_dpis; /* number of requested DPIs */
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u32 num_mrs; /* number of requested memory regions */
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u32 num_qps; /* number of requested Queue Pairs */
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u32 num_srqs; /* number of requested SRQ */
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u8 roce_edpm_mode; /* see QED_ROCE_EDPM_MODE_ENABLE */
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u8 gl_pi; /* protocol index */
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/* Will allocate rate limiters to be used with QPs */
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u8 enable_dcqcn;
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};
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struct qed_pf_params {
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struct qed_eth_pf_params eth_pf_params;
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struct qed_iscsi_pf_params iscsi_pf_params;
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struct qed_rdma_pf_params rdma_pf_params;
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};
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enum qed_int_mode {
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QED_INT_MODE_INTA,
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QED_INT_MODE_MSIX,
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QED_INT_MODE_MSI,
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QED_INT_MODE_POLL,
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};
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struct qed_sb_info {
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struct status_block *sb_virt;
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dma_addr_t sb_phys;
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u32 sb_ack; /* Last given ack */
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u16 igu_sb_id;
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void __iomem *igu_addr;
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u8 flags;
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#define QED_SB_INFO_INIT 0x1
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#define QED_SB_INFO_SETUP 0x2
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struct qed_dev *cdev;
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};
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struct qed_dev_info {
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unsigned long pci_mem_start;
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unsigned long pci_mem_end;
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unsigned int pci_irq;
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u8 num_hwfns;
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u8 hw_mac[ETH_ALEN];
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bool is_mf_default;
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/* FW version */
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u16 fw_major;
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u16 fw_minor;
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u16 fw_rev;
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u16 fw_eng;
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/* MFW version */
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u32 mfw_rev;
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u32 flash_size;
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u8 mf_mode;
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bool tx_switching;
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bool rdma_supported;
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};
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enum qed_sb_type {
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QED_SB_TYPE_L2_QUEUE,
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QED_SB_TYPE_CNQ,
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};
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enum qed_protocol {
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QED_PROTOCOL_ETH,
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QED_PROTOCOL_ISCSI,
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};
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enum qed_link_mode_bits {
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QED_LM_FIBRE_BIT = BIT(0),
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QED_LM_Autoneg_BIT = BIT(1),
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QED_LM_Asym_Pause_BIT = BIT(2),
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QED_LM_Pause_BIT = BIT(3),
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QED_LM_1000baseT_Half_BIT = BIT(4),
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QED_LM_1000baseT_Full_BIT = BIT(5),
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QED_LM_10000baseKR_Full_BIT = BIT(6),
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QED_LM_25000baseKR_Full_BIT = BIT(7),
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QED_LM_40000baseLR4_Full_BIT = BIT(8),
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QED_LM_50000baseKR2_Full_BIT = BIT(9),
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QED_LM_100000baseKR4_Full_BIT = BIT(10),
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QED_LM_COUNT = 11
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};
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struct qed_link_params {
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bool link_up;
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#define QED_LINK_OVERRIDE_SPEED_AUTONEG BIT(0)
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#define QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS BIT(1)
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#define QED_LINK_OVERRIDE_SPEED_FORCED_SPEED BIT(2)
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#define QED_LINK_OVERRIDE_PAUSE_CONFIG BIT(3)
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#define QED_LINK_OVERRIDE_LOOPBACK_MODE BIT(4)
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u32 override_flags;
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bool autoneg;
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u32 adv_speeds;
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u32 forced_speed;
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#define QED_LINK_PAUSE_AUTONEG_ENABLE BIT(0)
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#define QED_LINK_PAUSE_RX_ENABLE BIT(1)
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#define QED_LINK_PAUSE_TX_ENABLE BIT(2)
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u32 pause_config;
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#define QED_LINK_LOOPBACK_NONE BIT(0)
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#define QED_LINK_LOOPBACK_INT_PHY BIT(1)
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#define QED_LINK_LOOPBACK_EXT_PHY BIT(2)
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#define QED_LINK_LOOPBACK_EXT BIT(3)
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#define QED_LINK_LOOPBACK_MAC BIT(4)
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u32 loopback_mode;
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};
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struct qed_link_output {
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bool link_up;
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/* In QED_LM_* defs */
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u32 supported_caps;
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u32 advertised_caps;
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u32 lp_caps;
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u32 speed; /* In Mb/s */
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u8 duplex; /* In DUPLEX defs */
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u8 port; /* In PORT defs */
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bool autoneg;
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u32 pause_config;
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};
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struct qed_probe_params {
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enum qed_protocol protocol;
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u32 dp_module;
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u8 dp_level;
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bool is_vf;
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};
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#define QED_DRV_VER_STR_SIZE 12
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struct qed_slowpath_params {
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u32 int_mode;
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u8 drv_major;
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u8 drv_minor;
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u8 drv_rev;
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u8 drv_eng;
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u8 name[QED_DRV_VER_STR_SIZE];
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};
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#define ILT_PAGE_SIZE_TCFC 0x8000 /* 32KB */
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struct qed_int_info {
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struct msix_entry *msix;
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u8 msix_cnt;
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/* This should be updated by the protocol driver */
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u8 used_cnt;
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};
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struct qed_common_cb_ops {
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void (*link_update)(void *dev,
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struct qed_link_output *link);
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};
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struct qed_selftest_ops {
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/**
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* @brief selftest_interrupt - Perform interrupt test
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*
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* @param cdev
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*
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* @return 0 on success, error otherwise.
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*/
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int (*selftest_interrupt)(struct qed_dev *cdev);
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/**
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* @brief selftest_memory - Perform memory test
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*
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* @param cdev
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*
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* @return 0 on success, error otherwise.
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*/
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int (*selftest_memory)(struct qed_dev *cdev);
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/**
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* @brief selftest_register - Perform register test
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*
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* @param cdev
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*
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* @return 0 on success, error otherwise.
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*/
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int (*selftest_register)(struct qed_dev *cdev);
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/**
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* @brief selftest_clock - Perform clock test
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*
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* @param cdev
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*
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* @return 0 on success, error otherwise.
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*/
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int (*selftest_clock)(struct qed_dev *cdev);
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};
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struct qed_common_ops {
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struct qed_selftest_ops *selftest;
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struct qed_dev* (*probe)(struct pci_dev *dev,
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struct qed_probe_params *params);
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void (*remove)(struct qed_dev *cdev);
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int (*set_power_state)(struct qed_dev *cdev,
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pci_power_t state);
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void (*set_id)(struct qed_dev *cdev,
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char name[],
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char ver_str[]);
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/* Client drivers need to make this call before slowpath_start.
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* PF params required for the call before slowpath_start is
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* documented within the qed_pf_params structure definition.
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*/
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void (*update_pf_params)(struct qed_dev *cdev,
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struct qed_pf_params *params);
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int (*slowpath_start)(struct qed_dev *cdev,
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struct qed_slowpath_params *params);
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int (*slowpath_stop)(struct qed_dev *cdev);
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/* Requests to use `cnt' interrupts for fastpath.
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* upon success, returns number of interrupts allocated for fastpath.
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*/
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int (*set_fp_int)(struct qed_dev *cdev,
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u16 cnt);
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/* Fills `info' with pointers required for utilizing interrupts */
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int (*get_fp_int)(struct qed_dev *cdev,
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struct qed_int_info *info);
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u32 (*sb_init)(struct qed_dev *cdev,
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struct qed_sb_info *sb_info,
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void *sb_virt_addr,
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dma_addr_t sb_phy_addr,
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u16 sb_id,
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enum qed_sb_type type);
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u32 (*sb_release)(struct qed_dev *cdev,
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struct qed_sb_info *sb_info,
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u16 sb_id);
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void (*simd_handler_config)(struct qed_dev *cdev,
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void *token,
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int index,
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void (*handler)(void *));
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void (*simd_handler_clean)(struct qed_dev *cdev,
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int index);
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int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
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int (*dbg_all_data_size) (struct qed_dev *cdev);
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/**
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* @brief can_link_change - can the instance change the link or not
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*
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* @param cdev
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*
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* @return true if link-change is allowed, false otherwise.
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*/
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bool (*can_link_change)(struct qed_dev *cdev);
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/**
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* @brief set_link - set links according to params
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*
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* @param cdev
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* @param params - values used to override the default link configuration
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*
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* @return 0 on success, error otherwise.
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*/
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int (*set_link)(struct qed_dev *cdev,
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struct qed_link_params *params);
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/**
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* @brief get_link - returns the current link state.
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*
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* @param cdev
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* @param if_link - structure to be filled with current link configuration.
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*/
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void (*get_link)(struct qed_dev *cdev,
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struct qed_link_output *if_link);
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/**
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* @brief - drains chip in case Tx completions fail to arrive due to pause.
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*
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* @param cdev
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*/
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int (*drain)(struct qed_dev *cdev);
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/**
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* @brief update_msglvl - update module debug level
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*
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* @param cdev
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* @param dp_module
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* @param dp_level
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*/
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void (*update_msglvl)(struct qed_dev *cdev,
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u32 dp_module,
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u8 dp_level);
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int (*chain_alloc)(struct qed_dev *cdev,
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enum qed_chain_use_mode intended_use,
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enum qed_chain_mode mode,
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enum qed_chain_cnt_type cnt_type,
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u32 num_elems,
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size_t elem_size,
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struct qed_chain *p_chain);
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void (*chain_free)(struct qed_dev *cdev,
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struct qed_chain *p_chain);
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/**
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* @brief get_coalesce - Get coalesce parameters in usec
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*
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* @param cdev
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* @param rx_coal - Rx coalesce value in usec
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* @param tx_coal - Tx coalesce value in usec
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*
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*/
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void (*get_coalesce)(struct qed_dev *cdev, u16 *rx_coal, u16 *tx_coal);
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/**
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* @brief set_coalesce - Configure Rx coalesce value in usec
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*
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* @param cdev
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* @param rx_coal - Rx coalesce value in usec
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* @param tx_coal - Tx coalesce value in usec
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* @param qid - Queue index
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* @param sb_id - Status Block Id
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*
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* @return 0 on success, error otherwise.
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*/
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int (*set_coalesce)(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
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u8 qid, u16 sb_id);
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/**
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* @brief set_led - Configure LED mode
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*
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* @param cdev
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* @param mode - LED mode
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*
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* @return 0 on success, error otherwise.
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*/
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int (*set_led)(struct qed_dev *cdev,
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enum qed_led_mode mode);
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};
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#define MASK_FIELD(_name, _value) \
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((_value) &= (_name ## _MASK))
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#define FIELD_VALUE(_name, _value) \
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((_value & _name ## _MASK) << _name ## _SHIFT)
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#define SET_FIELD(value, name, flag) \
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do { \
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(value) &= ~(name ## _MASK << name ## _SHIFT); \
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(value) |= (((u64)flag) << (name ## _SHIFT)); \
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} while (0)
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#define GET_FIELD(value, name) \
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(((value) >> (name ## _SHIFT)) & name ## _MASK)
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/* Debug print definitions */
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#define DP_ERR(cdev, fmt, ...) \
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pr_err("[%s:%d(%s)]" fmt, \
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__func__, __LINE__, \
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DP_NAME(cdev) ? DP_NAME(cdev) : "", \
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## __VA_ARGS__) \
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#define DP_NOTICE(cdev, fmt, ...) \
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do { \
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if (unlikely((cdev)->dp_level <= QED_LEVEL_NOTICE)) { \
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pr_notice("[%s:%d(%s)]" fmt, \
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__func__, __LINE__, \
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DP_NAME(cdev) ? DP_NAME(cdev) : "", \
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## __VA_ARGS__); \
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\
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} \
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} while (0)
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#define DP_INFO(cdev, fmt, ...) \
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do { \
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if (unlikely((cdev)->dp_level <= QED_LEVEL_INFO)) { \
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pr_notice("[%s:%d(%s)]" fmt, \
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__func__, __LINE__, \
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DP_NAME(cdev) ? DP_NAME(cdev) : "", \
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## __VA_ARGS__); \
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} \
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} while (0)
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#define DP_VERBOSE(cdev, module, fmt, ...) \
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do { \
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if (unlikely(((cdev)->dp_level <= QED_LEVEL_VERBOSE) && \
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((cdev)->dp_module & module))) { \
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pr_notice("[%s:%d(%s)]" fmt, \
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__func__, __LINE__, \
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DP_NAME(cdev) ? DP_NAME(cdev) : "", \
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## __VA_ARGS__); \
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} \
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} while (0)
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enum DP_LEVEL {
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QED_LEVEL_VERBOSE = 0x0,
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QED_LEVEL_INFO = 0x1,
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QED_LEVEL_NOTICE = 0x2,
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QED_LEVEL_ERR = 0x3,
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};
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#define QED_LOG_LEVEL_SHIFT (30)
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#define QED_LOG_VERBOSE_MASK (0x3fffffff)
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#define QED_LOG_INFO_MASK (0x40000000)
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#define QED_LOG_NOTICE_MASK (0x80000000)
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enum DP_MODULE {
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QED_MSG_SPQ = 0x10000,
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QED_MSG_STATS = 0x20000,
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QED_MSG_DCB = 0x40000,
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QED_MSG_IOV = 0x80000,
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QED_MSG_SP = 0x100000,
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QED_MSG_STORAGE = 0x200000,
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QED_MSG_CXT = 0x800000,
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QED_MSG_LL2 = 0x1000000,
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QED_MSG_ILT = 0x2000000,
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QED_MSG_RDMA = 0x4000000,
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QED_MSG_DEBUG = 0x8000000,
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/* to be added...up to 0x8000000 */
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};
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enum qed_mf_mode {
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QED_MF_DEFAULT,
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QED_MF_OVLAN,
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QED_MF_NPAR,
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};
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struct qed_eth_stats {
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u64 no_buff_discards;
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u64 packet_too_big_discard;
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u64 ttl0_discard;
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u64 rx_ucast_bytes;
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u64 rx_mcast_bytes;
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u64 rx_bcast_bytes;
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u64 rx_ucast_pkts;
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u64 rx_mcast_pkts;
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u64 rx_bcast_pkts;
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u64 mftag_filter_discards;
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u64 mac_filter_discards;
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u64 tx_ucast_bytes;
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u64 tx_mcast_bytes;
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u64 tx_bcast_bytes;
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u64 tx_ucast_pkts;
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u64 tx_mcast_pkts;
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u64 tx_bcast_pkts;
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u64 tx_err_drop_pkts;
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u64 tpa_coalesced_pkts;
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u64 tpa_coalesced_events;
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u64 tpa_aborts_num;
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u64 tpa_not_coalesced_pkts;
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u64 tpa_coalesced_bytes;
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/* port */
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u64 rx_64_byte_packets;
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u64 rx_65_to_127_byte_packets;
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u64 rx_128_to_255_byte_packets;
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u64 rx_256_to_511_byte_packets;
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u64 rx_512_to_1023_byte_packets;
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u64 rx_1024_to_1518_byte_packets;
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u64 rx_1519_to_1522_byte_packets;
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u64 rx_1519_to_2047_byte_packets;
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u64 rx_2048_to_4095_byte_packets;
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u64 rx_4096_to_9216_byte_packets;
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u64 rx_9217_to_16383_byte_packets;
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u64 rx_crc_errors;
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u64 rx_mac_crtl_frames;
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u64 rx_pause_frames;
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u64 rx_pfc_frames;
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u64 rx_align_errors;
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u64 rx_carrier_errors;
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u64 rx_oversize_packets;
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u64 rx_jabbers;
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u64 rx_undersize_packets;
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u64 rx_fragments;
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u64 tx_64_byte_packets;
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u64 tx_65_to_127_byte_packets;
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u64 tx_128_to_255_byte_packets;
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u64 tx_256_to_511_byte_packets;
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u64 tx_512_to_1023_byte_packets;
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u64 tx_1024_to_1518_byte_packets;
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u64 tx_1519_to_2047_byte_packets;
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u64 tx_2048_to_4095_byte_packets;
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u64 tx_4096_to_9216_byte_packets;
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u64 tx_9217_to_16383_byte_packets;
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u64 tx_pause_frames;
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u64 tx_pfc_frames;
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u64 tx_lpi_entry_count;
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u64 tx_total_collisions;
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u64 brb_truncates;
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u64 brb_discards;
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u64 rx_mac_bytes;
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u64 rx_mac_uc_packets;
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u64 rx_mac_mc_packets;
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u64 rx_mac_bc_packets;
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u64 rx_mac_frames_ok;
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u64 tx_mac_bytes;
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u64 tx_mac_uc_packets;
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u64 tx_mac_mc_packets;
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u64 tx_mac_bc_packets;
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u64 tx_mac_ctrl_frames;
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};
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#define QED_SB_IDX 0x0002
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#define RX_PI 0
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#define TX_PI(tc) (RX_PI + 1 + tc)
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struct qed_sb_cnt_info {
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int sb_cnt;
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int sb_iov_cnt;
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int sb_free_blk;
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};
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static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info)
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{
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u32 prod = 0;
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u16 rc = 0;
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prod = le32_to_cpu(sb_info->sb_virt->prod_index) &
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STATUS_BLOCK_PROD_INDEX_MASK;
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if (sb_info->sb_ack != prod) {
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sb_info->sb_ack = prod;
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rc |= QED_SB_IDX;
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}
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/* Let SB update */
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mmiowb();
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return rc;
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}
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/**
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*
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* @brief This function creates an update command for interrupts that is
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* written to the IGU.
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*
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* @param sb_info - This is the structure allocated and
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* initialized per status block. Assumption is
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* that it was initialized using qed_sb_init
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* @param int_cmd - Enable/Disable/Nop
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* @param upd_flg - whether igu consumer should be
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* updated.
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*
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* @return inline void
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*/
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static inline void qed_sb_ack(struct qed_sb_info *sb_info,
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enum igu_int_cmd int_cmd,
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u8 upd_flg)
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{
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struct igu_prod_cons_update igu_ack = { 0 };
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igu_ack.sb_id_and_flags =
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((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) |
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(upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) |
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(int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) |
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(IGU_SEG_ACCESS_REG <<
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IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT));
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DIRECT_REG_WR(sb_info->igu_addr, igu_ack.sb_id_and_flags);
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/* Both segments (interrupts & acks) are written to same place address;
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* Need to guarantee all commands will be received (in-order) by HW.
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*/
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mmiowb();
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barrier();
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}
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static inline void __internal_ram_wr(void *p_hwfn,
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void __iomem *addr,
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int size,
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u32 *data)
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{
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unsigned int i;
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for (i = 0; i < size / sizeof(*data); i++)
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DIRECT_REG_WR(&((u32 __iomem *)addr)[i], data[i]);
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}
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static inline void internal_ram_wr(void __iomem *addr,
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int size,
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u32 *data)
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{
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__internal_ram_wr(NULL, addr, size, data);
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}
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enum qed_rss_caps {
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QED_RSS_IPV4 = 0x1,
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QED_RSS_IPV6 = 0x2,
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QED_RSS_IPV4_TCP = 0x4,
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QED_RSS_IPV6_TCP = 0x8,
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QED_RSS_IPV4_UDP = 0x10,
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QED_RSS_IPV6_UDP = 0x20,
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};
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#define QED_RSS_IND_TABLE_SIZE 128
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#define QED_RSS_KEY_SIZE 10 /* size in 32b chunks */
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#endif
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