| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jeff Garzik | 1390 | 38.03% | 4 | 5.41% |
| Koushik | 671 | 18.36% | 11 | 14.86% |
| Sreenivasa Honnur | 411 | 11.24% | 11 | 14.86% |
| Ravinandan Arakali | 255 | 6.98% | 5 | 6.76% |
| Ananda Raju | 252 | 6.89% | 8 | 10.81% |
| Sivakumar Subramani | 205 | 5.61% | 8 | 10.81% |
| Al Viro | 170 | 4.65% | 3 | 4.05% |
| Ralf Baechle | 156 | 4.27% | 1 | 1.35% |
| Jiri Slaby | 42 | 1.15% | 1 | 1.35% |
| Linas Vepstas | 19 | 0.52% | 1 | 1.35% |
| David S. Miller | 12 | 0.33% | 1 | 1.35% |
| Stephen Hemminger | 12 | 0.33% | 1 | 1.35% |
| Surjit Reang | 10 | 0.27% | 1 | 1.35% |
| Adrian Bunk | 8 | 0.22% | 2 | 2.70% |
| Sebastian Andrzej Siewior | 6 | 0.16% | 1 | 1.35% |
| Veena Parat | 6 | 0.16% | 2 | 2.70% |
| Jon Mason | 5 | 0.14% | 3 | 4.05% |
| David Howells | 4 | 0.11% | 1 | 1.35% |
| Kees Cook | 4 | 0.11% | 1 | 1.35% |
| Breno Leitão | 4 | 0.11% | 2 | 2.70% |
| Michael S. Tsirkin | 4 | 0.11% | 1 | 1.35% |
| Corentin Labbe | 3 | 0.08% | 1 | 1.35% |
| Phil Carmody | 2 | 0.05% | 1 | 1.35% |
| Joe Perches | 2 | 0.05% | 1 | 1.35% |
| Lucas De Marchi | 1 | 0.03% | 1 | 1.35% |
| Jakub Kiciński | 1 | 0.03% | 1 | 1.35% |
| Total | 3655 | 74 |
/************************************************************************ * s2io.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC * Copyright(c) 2002-2010 Exar Corp. * This software may be used and distributed according to the terms of * the GNU General Public License (GPL), incorporated herein by reference. * Drivers based on or derived from this code fall under the GPL and must * retain the authorship, copyright and license notice. This file is not * a complete program and may only be used when the entire operating * system is licensed under the GPL. * See the file COPYING in this distribution for more information. ************************************************************************/ #include <linux/io-64-nonatomic-lo-hi.h> #ifndef _S2IO_H #define _S2IO_H #define TBD 0 #define s2BIT(loc) (0x8000000000000000ULL >> (loc)) #define vBIT(val, loc, sz) (((u64)val) << (64-loc-sz)) #define INV(d) ((d&0xff)<<24) | (((d>>8)&0xff)<<16) | (((d>>16)&0xff)<<8)| ((d>>24)&0xff) #undef SUCCESS #define SUCCESS 0 #define FAILURE -1 #define S2IO_MINUS_ONE 0xFFFFFFFFFFFFFFFFULL #define S2IO_DISABLE_MAC_ENTRY 0xFFFFFFFFFFFFULL #define S2IO_MAX_PCI_CONFIG_SPACE_REINIT 100 #define S2IO_BIT_RESET 1 #define S2IO_BIT_SET 2 #define CHECKBIT(value, nbit) (value & (1 << nbit)) /* Maximum time to flicker LED when asked to identify NIC using ethtool */ #define MAX_FLICKER_TIME 60000 /* 60 Secs */ /* Maximum outstanding splits to be configured into xena. */ enum { XENA_ONE_SPLIT_TRANSACTION = 0, XENA_TWO_SPLIT_TRANSACTION = 1, XENA_THREE_SPLIT_TRANSACTION = 2, XENA_FOUR_SPLIT_TRANSACTION = 3, XENA_EIGHT_SPLIT_TRANSACTION = 4, XENA_TWELVE_SPLIT_TRANSACTION = 5, XENA_SIXTEEN_SPLIT_TRANSACTION = 6, XENA_THIRTYTWO_SPLIT_TRANSACTION = 7 }; #define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4) /* OS concerned variables and constants */ #define WATCH_DOG_TIMEOUT 15*HZ #define EFILL 0x1234 #define ALIGN_SIZE 127 #define PCIX_COMMAND_REGISTER 0x62 /* * Debug related variables. */ /* different debug levels. */ #define ERR_DBG 0 #define INIT_DBG 1 #define INFO_DBG 2 #define TX_DBG 3 #define INTR_DBG 4 /* Global variable that defines the present debug level of the driver. */ static int debug_level = ERR_DBG; /* DEBUG message print. */ #define DBG_PRINT(dbg_level, fmt, args...) do { \ if (dbg_level <= debug_level) \ pr_info(fmt, ##args); \ } while (0) /* Protocol assist features of the NIC */ #define L3_CKSUM_OK 0xFFFF #define L4_CKSUM_OK 0xFFFF #define S2IO_JUMBO_SIZE 9600 /* Driver statistics maintained by driver */ struct swStat { unsigned long long single_ecc_errs; unsigned long long double_ecc_errs; unsigned long long parity_err_cnt; unsigned long long serious_err_cnt; unsigned long long soft_reset_cnt; unsigned long long fifo_full_cnt; unsigned long long ring_full_cnt[8]; /* LRO statistics */ unsigned long long clubbed_frms_cnt; unsigned long long sending_both; unsigned long long outof_sequence_pkts; unsigned long long flush_max_pkts; unsigned long long sum_avg_pkts_aggregated; unsigned long long num_aggregations; /* Other statistics */ unsigned long long mem_alloc_fail_cnt; unsigned long long pci_map_fail_cnt; unsigned long long watchdog_timer_cnt; unsigned long long mem_allocated; unsigned long long mem_freed; unsigned long long link_up_cnt; unsigned long long link_down_cnt; unsigned long long link_up_time; unsigned long long link_down_time; /* Transfer Code statistics */ unsigned long long tx_buf_abort_cnt; unsigned long long tx_desc_abort_cnt; unsigned long long tx_parity_err_cnt; unsigned long long tx_link_loss_cnt; unsigned long long tx_list_proc_err_cnt; unsigned long long rx_parity_err_cnt; unsigned long long rx_abort_cnt; unsigned long long rx_parity_abort_cnt; unsigned long long rx_rda_fail_cnt; unsigned long long rx_unkn_prot_cnt; unsigned long long rx_fcs_err_cnt; unsigned long long rx_buf_size_err_cnt; unsigned long long rx_rxd_corrupt_cnt; unsigned long long rx_unkn_err_cnt; /* Error/alarm statistics*/ unsigned long long tda_err_cnt; unsigned long long pfc_err_cnt; unsigned long long pcc_err_cnt; unsigned long long tti_err_cnt; unsigned long long lso_err_cnt; unsigned long long tpa_err_cnt; unsigned long long sm_err_cnt; unsigned long long mac_tmac_err_cnt; unsigned long long mac_rmac_err_cnt; unsigned long long xgxs_txgxs_err_cnt; unsigned long long xgxs_rxgxs_err_cnt; unsigned long long rc_err_cnt; unsigned long long prc_pcix_err_cnt; unsigned long long rpa_err_cnt; unsigned long long rda_err_cnt; unsigned long long rti_err_cnt; unsigned long long mc_err_cnt; }; /* Xpak releated alarm and warnings */ struct xpakStat { u64 alarm_transceiver_temp_high; u64 alarm_transceiver_temp_low; u64 alarm_laser_bias_current_high; u64 alarm_laser_bias_current_low; u64 alarm_laser_output_power_high; u64 alarm_laser_output_power_low; u64 warn_transceiver_temp_high; u64 warn_transceiver_temp_low; u64 warn_laser_bias_current_high; u64 warn_laser_bias_current_low; u64 warn_laser_output_power_high; u64 warn_laser_output_power_low; u64 xpak_regs_stat; u32 xpak_timer_count; }; /* The statistics block of Xena */ struct stat_block { /* Tx MAC statistics counters. */ __le32 tmac_data_octets; __le32 tmac_frms; __le64 tmac_drop_frms; __le32 tmac_bcst_frms; __le32 tmac_mcst_frms; __le64 tmac_pause_ctrl_frms; __le32 tmac_ucst_frms; __le32 tmac_ttl_octets; __le32 tmac_any_err_frms; __le32 tmac_nucst_frms; __le64 tmac_ttl_less_fb_octets; __le64 tmac_vld_ip_octets; __le32 tmac_drop_ip; __le32 tmac_vld_ip; __le32 tmac_rst_tcp; __le32 tmac_icmp; __le64 tmac_tcp; __le32 reserved_0; __le32 tmac_udp; /* Rx MAC Statistics counters. */ __le32 rmac_data_octets; __le32 rmac_vld_frms; __le64 rmac_fcs_err_frms; __le64 rmac_drop_frms; __le32 rmac_vld_bcst_frms; __le32 rmac_vld_mcst_frms; __le32 rmac_out_rng_len_err_frms; __le32 rmac_in_rng_len_err_frms; __le64 rmac_long_frms; __le64 rmac_pause_ctrl_frms; __le64 rmac_unsup_ctrl_frms; __le32 rmac_accepted_ucst_frms; __le32 rmac_ttl_octets; __le32 rmac_discarded_frms; __le32 rmac_accepted_nucst_frms; __le32 reserved_1; __le32 rmac_drop_events; __le64 rmac_ttl_less_fb_octets; __le64 rmac_ttl_frms; __le64 reserved_2; __le32 rmac_usized_frms; __le32 reserved_3; __le32 rmac_frag_frms; __le32 rmac_osized_frms; __le32 reserved_4; __le32 rmac_jabber_frms; __le64 rmac_ttl_64_frms; __le64 rmac_ttl_65_127_frms; __le64 reserved_5; __le64 rmac_ttl_128_255_frms; __le64 rmac_ttl_256_511_frms; __le64 reserved_6; __le64 rmac_ttl_512_1023_frms; __le64 rmac_ttl_1024_1518_frms; __le32 rmac_ip; __le32 reserved_7; __le64 rmac_ip_octets; __le32 rmac_drop_ip; __le32 rmac_hdr_err_ip; __le32 reserved_8; __le32 rmac_icmp; __le64 rmac_tcp; __le32 rmac_err_drp_udp; __le32 rmac_udp; __le64 rmac_xgmii_err_sym; __le64 rmac_frms_q0; __le64 rmac_frms_q1; __le64 rmac_frms_q2; __le64 rmac_frms_q3; __le64 rmac_frms_q4; __le64 rmac_frms_q5; __le64 rmac_frms_q6; __le64 rmac_frms_q7; __le16 rmac_full_q3; __le16 rmac_full_q2; __le16 rmac_full_q1; __le16 rmac_full_q0; __le16 rmac_full_q7; __le16 rmac_full_q6; __le16 rmac_full_q5; __le16 rmac_full_q4; __le32 reserved_9; __le32 rmac_pause_cnt; __le64 rmac_xgmii_data_err_cnt; __le64 rmac_xgmii_ctrl_err_cnt; __le32 rmac_err_tcp; __le32 rmac_accepted_ip; /* PCI/PCI-X Read transaction statistics. */ __le32 new_rd_req_cnt; __le32 rd_req_cnt; __le32 rd_rtry_cnt; __le32 new_rd_req_rtry_cnt; /* PCI/PCI-X Write/Read transaction statistics. */ __le32 wr_req_cnt; __le32 wr_rtry_rd_ack_cnt; __le32 new_wr_req_rtry_cnt; __le32 new_wr_req_cnt; __le32 wr_disc_cnt; __le32 wr_rtry_cnt; /* PCI/PCI-X Write / DMA Transaction statistics. */ __le32 txp_wr_cnt; __le32 rd_rtry_wr_ack_cnt; __le32 txd_wr_cnt; __le32 txd_rd_cnt; __le32 rxd_wr_cnt; __le32 rxd_rd_cnt; __le32 rxf_wr_cnt; __le32 txf_rd_cnt; /* Tx MAC statistics overflow counters. */ __le32 tmac_data_octets_oflow; __le32 tmac_frms_oflow; __le32 tmac_bcst_frms_oflow; __le32 tmac_mcst_frms_oflow; __le32 tmac_ucst_frms_oflow; __le32 tmac_ttl_octets_oflow; __le32 tmac_any_err_frms_oflow; __le32 tmac_nucst_frms_oflow; __le64 tmac_vlan_frms; __le32 tmac_drop_ip_oflow; __le32 tmac_vld_ip_oflow; __le32 tmac_rst_tcp_oflow; __le32 tmac_icmp_oflow; __le32 tpa_unknown_protocol; __le32 tmac_udp_oflow; __le32 reserved_10; __le32 tpa_parse_failure; /* Rx MAC Statistics overflow counters. */ __le32 rmac_data_octets_oflow; __le32 rmac_vld_frms_oflow; __le32 rmac_vld_bcst_frms_oflow; __le32 rmac_vld_mcst_frms_oflow; __le32 rmac_accepted_ucst_frms_oflow; __le32 rmac_ttl_octets_oflow; __le32 rmac_discarded_frms_oflow; __le32 rmac_accepted_nucst_frms_oflow; __le32 rmac_usized_frms_oflow; __le32 rmac_drop_events_oflow; __le32 rmac_frag_frms_oflow; __le32 rmac_osized_frms_oflow; __le32 rmac_ip_oflow; __le32 rmac_jabber_frms_oflow; __le32 rmac_icmp_oflow; __le32 rmac_drop_ip_oflow; __le32 rmac_err_drp_udp_oflow; __le32 rmac_udp_oflow; __le32 reserved_11; __le32 rmac_pause_cnt_oflow; __le64 rmac_ttl_1519_4095_frms; __le64 rmac_ttl_4096_8191_frms; __le64 rmac_ttl_8192_max_frms; __le64 rmac_ttl_gt_max_frms; __le64 rmac_osized_alt_frms; __le64 rmac_jabber_alt_frms; __le64 rmac_gt_max_alt_frms; __le64 rmac_vlan_frms; __le32 rmac_len_discard; __le32 rmac_fcs_discard; __le32 rmac_pf_discard; __le32 rmac_da_discard; __le32 rmac_red_discard; __le32 rmac_rts_discard; __le32 reserved_12; __le32 rmac_ingm_full_discard; __le32 reserved_13; __le32 rmac_accepted_ip_oflow; __le32 reserved_14; __le32 link_fault_cnt; u8 buffer[20]; struct swStat sw_stat; struct xpakStat xpak_stat; }; /* Default value for 'vlan_strip_tag' configuration parameter */ #define NO_STRIP_IN_PROMISC 2 /* * Structures representing different init time configuration * parameters of the NIC. */ #define MAX_TX_FIFOS 8 #define MAX_RX_RINGS 8 #define FIFO_DEFAULT_NUM 5 #define FIFO_UDP_MAX_NUM 2 /* 0 - even, 1 -odd ports */ #define FIFO_OTHER_MAX_NUM 1 #define MAX_RX_DESC_1 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 128) #define MAX_RX_DESC_2 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 86) #define MAX_TX_DESC (MAX_AVAILABLE_TXDS) /* FIFO mappings for all possible number of fifos configured */ static const int fifo_map[][MAX_TX_FIFOS] = { {0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 1, 1, 1, 1}, {0, 0, 0, 1, 1, 1, 2, 2}, {0, 0, 1, 1, 2, 2, 3, 3}, {0, 0, 1, 1, 2, 2, 3, 4}, {0, 0, 1, 1, 2, 3, 4, 5}, {0, 0, 1, 2, 3, 4, 5, 6}, {0, 1, 2, 3, 4, 5, 6, 7}, }; static const u16 fifo_selector[MAX_TX_FIFOS] = {0, 1, 3, 3, 7, 7, 7, 7}; /* Maintains Per FIFO related information. */ struct tx_fifo_config { #define MAX_AVAILABLE_TXDS 8192 u32 fifo_len; /* specifies len of FIFO up to 8192, ie no of TxDLs */ /* Priority definition */ #define TX_FIFO_PRI_0 0 /*Highest */ #define TX_FIFO_PRI_1 1 #define TX_FIFO_PRI_2 2 #define TX_FIFO_PRI_3 3 #define TX_FIFO_PRI_4 4 #define TX_FIFO_PRI_5 5 #define TX_FIFO_PRI_6 6 #define TX_FIFO_PRI_7 7 /*lowest */ u8 fifo_priority; /* specifies pointer level for FIFO */ /* user should not set twos fifos with same pri */ u8 f_no_snoop; #define NO_SNOOP_TXD 0x01 #define NO_SNOOP_TXD_BUFFER 0x02 }; /* Maintains per Ring related information */ struct rx_ring_config { u32 num_rxd; /*No of RxDs per Rx Ring */ #define RX_RING_PRI_0 0 /* highest */ #define RX_RING_PRI_1 1 #define RX_RING_PRI_2 2 #define RX_RING_PRI_3 3 #define RX_RING_PRI_4 4 #define RX_RING_PRI_5 5 #define RX_RING_PRI_6 6 #define RX_RING_PRI_7 7 /* lowest */ u8 ring_priority; /*Specifies service priority of ring */ /* OSM should not set any two rings with same priority */ u8 ring_org; /*Organization of ring */ #define RING_ORG_BUFF1 0x01 #define RX_RING_ORG_BUFF3 0x03 #define RX_RING_ORG_BUFF5 0x05 u8 f_no_snoop; #define NO_SNOOP_RXD 0x01 #define NO_SNOOP_RXD_BUFFER 0x02 }; /* This structure provides contains values of the tunable parameters * of the H/W */ struct config_param { /* Tx Side */ u32 tx_fifo_num; /*Number of Tx FIFOs */ /* 0-No steering, 1-Priority steering, 2-Default fifo map */ #define NO_STEERING 0 #define TX_PRIORITY_STEERING 0x1 #define TX_DEFAULT_STEERING 0x2 u8 tx_steering_type; u8 fifo_mapping[MAX_TX_FIFOS]; struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */ u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */ u64 tx_intr_type; #define INTA 0 #define MSI_X 2 u8 intr_type; u8 napi; /* Specifies if Tx Intr is UTILZ or PER_LIST type. */ /* Rx Side */ u32 rx_ring_num; /*Number of receive rings */ #define MAX_RX_BLOCKS_PER_RING 150 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */ #define HEADER_ETHERNET_II_802_3_SIZE 14 #define HEADER_802_2_SIZE 3 #define HEADER_SNAP_SIZE 5 #define HEADER_VLAN_SIZE 4 #define MIN_MTU 46 #define MAX_PYLD 1500 #define MAX_MTU (MAX_PYLD+18) #define MAX_MTU_VLAN (MAX_PYLD+22) #define MAX_PYLD_JUMBO 9600 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18) #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22) u16 bus_speed; int max_mc_addr; /* xena=64 herc=256 */ int max_mac_addr; /* xena=16 herc=64 */ int mc_start_offset; /* xena=16 herc=64 */ u8 multiq; }; /* Structure representing MAC Addrs */ struct mac_addr { u8 mac_addr[ETH_ALEN]; }; /* Structure that represent every FIFO element in the BAR1 * Address location. */ struct TxFIFO_element { u64 TxDL_Pointer; u64 List_Control; #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8) #define TX_FIFO_FIRST_LIST s2BIT(14) #define TX_FIFO_LAST_LIST s2BIT(15) #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2) #define TX_FIFO_SPECIAL_FUNC s2BIT(23) #define TX_FIFO_DS_NO_SNOOP s2BIT(31) #define TX_FIFO_BUFF_NO_SNOOP s2BIT(30) }; /* Tx descriptor structure */ struct TxD { u64 Control_1; /* bit mask */ #define TXD_LIST_OWN_XENA s2BIT(7) #define TXD_T_CODE (s2BIT(12)|s2BIT(13)|s2BIT(14)|s2BIT(15)) #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE)) #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12) #define TXD_GATHER_CODE (s2BIT(22) | s2BIT(23)) #define TXD_GATHER_CODE_FIRST s2BIT(22) #define TXD_GATHER_CODE_LAST s2BIT(23) #define TXD_TCP_LSO_EN s2BIT(30) #define TXD_UDP_COF_EN s2BIT(31) #define TXD_UFO_EN s2BIT(31) | s2BIT(30) #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14) #define TXD_UFO_MSS(val) vBIT(val,34,14) #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16) u64 Control_2; #define TXD_TX_CKO_CONTROL (s2BIT(5)|s2BIT(6)|s2BIT(7)) #define TXD_TX_CKO_IPV4_EN s2BIT(5) #define TXD_TX_CKO_TCP_EN s2BIT(6) #define TXD_TX_CKO_UDP_EN s2BIT(7) #define TXD_VLAN_ENABLE s2BIT(15) #define TXD_VLAN_TAG(val) vBIT(val,16,16) #define TXD_INT_NUMBER(val) vBIT(val,34,6) #define TXD_INT_TYPE_PER_LIST s2BIT(47) #define TXD_INT_TYPE_UTILZ s2BIT(46) #define TXD_SET_MARKER vBIT(0x6,0,4) u64 Buffer_Pointer; u64 Host_Control; /* reserved for host */ }; /* Structure to hold the phy and virt addr of every TxDL. */ struct list_info_hold { dma_addr_t list_phy_addr; void *list_virt_addr; }; /* Rx descriptor structure for 1 buffer mode */ struct RxD_t { u64 Host_Control; /* reserved for host */ u64 Control_1; #define RXD_OWN_XENA s2BIT(7) #define RXD_T_CODE (s2BIT(12)|s2BIT(13)|s2BIT(14)|s2BIT(15)) #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8) #define RXD_FRAME_VLAN_TAG s2BIT(24) #define RXD_FRAME_PROTO_IPV4 s2BIT(27) #define RXD_FRAME_PROTO_IPV6 s2BIT(28) #define RXD_FRAME_IP_FRAG s2BIT(29) #define RXD_FRAME_PROTO_TCP s2BIT(30) #define RXD_FRAME_PROTO_UDP s2BIT(31) #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP) #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF) #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF) u64 Control_2; #define THE_RXD_MARK 0x3 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2) #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62) #define MASK_VLAN_TAG vBIT(0xFFFF,48,16) #define SET_VLAN_TAG(val) vBIT(val,48,16) #define SET_NUM_TAG(val) vBIT(val,16,32) }; /* Rx descriptor structure for 1 buffer mode */ struct RxD1 { struct RxD_t h; #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14) #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14) #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \ (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48) u64 Buffer0_ptr; }; /* Rx descriptor structure for 3 or 2 buffer mode */ struct RxD3 { struct RxD_t h; #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14) #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16) #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16) #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8) #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16) #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16) #define RXD_GET_BUFFER0_SIZE_3(Control_2) \ (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48) #define RXD_GET_BUFFER1_SIZE_3(Control_2) \ (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32) #define RXD_GET_BUFFER2_SIZE_3(Control_2) \ (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16) #define BUF0_LEN 40 #define BUF1_LEN 1 u64 Buffer0_ptr; u64 Buffer1_ptr; u64 Buffer2_ptr; }; /* Structure that represents the Rx descriptor block which contains * 128 Rx descriptors. */ struct RxD_block { #define MAX_RXDS_PER_BLOCK_1 127 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1]; u64 reserved_0; #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last * Rxd in this blk */ u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */ u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch * the upper 32 bits should * be 0 */ }; #define SIZE_OF_BLOCK 4096 #define RXD_MODE_1 0 /* One Buffer mode */ #define RXD_MODE_3B 1 /* Two Buffer mode */ /* Structure to hold virtual addresses of Buf0 and Buf1 in * 2buf mode. */ struct buffAdd { void *ba_0_org; void *ba_1_org; void *ba_0; void *ba_1; }; /* Structure which stores all the MAC control parameters */ /* This structure stores the offset of the RxD in the ring * from which the Rx Interrupt processor can start picking * up the RxDs for processing. */ struct rx_curr_get_info { u32 block_index; u32 offset; u32 ring_len; }; struct rx_curr_put_info { u32 block_index; u32 offset; u32 ring_len; }; /* This structure stores the offset of the TxDl in the FIFO * from which the Tx Interrupt processor can start picking * up the TxDLs for send complete interrupt processing. */ struct tx_curr_get_info { u32 offset; u32 fifo_len; }; struct tx_curr_put_info { u32 offset; u32 fifo_len; }; struct rxd_info { void *virt_addr; dma_addr_t dma_addr; }; /* Structure that holds the Phy and virt addresses of the Blocks */ struct rx_block_info { void *block_virt_addr; dma_addr_t block_dma_addr; struct rxd_info *rxds; }; /* Data structure to represent a LRO session */ struct lro { struct sk_buff *parent; struct sk_buff *last_frag; u8 *l2h; struct iphdr *iph; struct tcphdr *tcph; u32 tcp_next_seq; __be32 tcp_ack; int total_len; int frags_len; int sg_num; int in_use; __be16 window; u16 vlan_tag; u32 cur_tsval; __be32 cur_tsecr; u8 saw_ts; } ____cacheline_aligned; /* Ring specific structure */ struct ring_info { /* The ring number */ int ring_no; /* per-ring buffer counter */ u32 rx_bufs_left; #define MAX_LRO_SESSIONS 32 struct lro lro0_n[MAX_LRO_SESSIONS]; u8 lro; /* copy of sp->rxd_mode flag */ int rxd_mode; /* Number of rxds per block for the rxd_mode */ int rxd_count; /* copy of sp pointer */ struct s2io_nic *nic; /* copy of sp->dev pointer */ struct net_device *dev; /* copy of sp->pdev pointer */ struct pci_dev *pdev; /* Per ring napi struct */ struct napi_struct napi; unsigned long interrupt_count; /* * Place holders for the virtual and physical addresses of * all the Rx Blocks */ struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING]; int block_count; int pkt_cnt; /* * Put pointer info which indictes which RxD has to be replenished * with a new buffer. */ struct rx_curr_put_info rx_curr_put_info; /* * Get pointer info which indictes which is the last RxD that was * processed by the driver. */ struct rx_curr_get_info rx_curr_get_info; /* interface MTU value */ unsigned mtu; /* Buffer Address store. */ struct buffAdd **ba; } ____cacheline_aligned; /* Fifo specific structure */ struct fifo_info { /* FIFO number */ int fifo_no; /* Maximum TxDs per TxDL */ int max_txds; /* Place holder of all the TX List's Phy and Virt addresses. */ struct list_info_hold *list_info; /* * Current offset within the tx FIFO where driver would write * new Tx frame */ struct tx_curr_put_info tx_curr_put_info; /* * Current offset within tx FIFO from where the driver would start freeing * the buffers */ struct tx_curr_get_info tx_curr_get_info; #define FIFO_QUEUE_START 0 #define FIFO_QUEUE_STOP 1 int queue_state; /* copy of sp->dev pointer */ struct net_device *dev; /* copy of multiq status */ u8 multiq; /* Per fifo lock */ spinlock_t tx_lock; /* Per fifo UFO in band structure */ u64 *ufo_in_band_v; struct s2io_nic *nic; } ____cacheline_aligned; /* Information related to the Tx and Rx FIFOs and Rings of Xena * is maintained in this structure. */ struct mac_info { /* tx side stuff */ /* logical pointer of start of each Tx FIFO */ struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS]; /* Fifo specific structure */ struct fifo_info fifos[MAX_TX_FIFOS]; /* Save virtual address of TxD page with zero DMA addr(if any) */ void *zerodma_virt_addr; /* rx side stuff */ /* Ring specific structure */ struct ring_info rings[MAX_RX_RINGS]; u16 rmac_pause_time; u16 mc_pause_threshold_q0q3; u16 mc_pause_threshold_q4q7; void *stats_mem; /* orignal pointer to allocated mem */ dma_addr_t stats_mem_phy; /* Physical address of the stat block */ u32 stats_mem_sz; struct stat_block *stats_info; /* Logical address of the stat block */ }; /* Default Tunable parameters of the NIC. */ #define DEFAULT_FIFO_0_LEN 4096 #define DEFAULT_FIFO_1_7_LEN 512 #define SMALL_BLK_CNT 30 #define LARGE_BLK_CNT 100 /* * Structure to keep track of the MSI-X vectors and the corresponding * argument registered against each vector */ #define MAX_REQUESTED_MSI_X 9 struct s2io_msix_entry { u16 vector; u16 entry; void *arg; u8 type; #define MSIX_ALARM_TYPE 1 #define MSIX_RING_TYPE 2 u8 in_use; #define MSIX_REGISTERED_SUCCESS 0xAA }; struct msix_info_st { u64 addr; u64 data; }; /* These flags represent the devices temporary state */ enum s2io_device_state_t { __S2IO_STATE_LINK_TASK=0, __S2IO_STATE_CARD_UP }; /* Structure representing one instance of the NIC */ struct s2io_nic { int rxd_mode; /* * Count of packets to be processed in a given iteration, it will be indicated * by the quota field of the device structure when NAPI is enabled. */ int pkts_to_process; struct net_device *dev; struct mac_info mac_control; struct config_param config; struct pci_dev *pdev; void __iomem *bar0; void __iomem *bar1; #define MAX_MAC_SUPPORTED 16 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED struct mac_addr def_mac_addr[256]; struct net_device_stats stats; int device_enabled_once; char name[60]; /* Timer that handles I/O errors/exceptions */ struct timer_list alarm_timer; /* Space to back up the PCI config space */ u32 config_space[256 / sizeof(u32)]; #define PROMISC 1 #define ALL_MULTI 2 #define MAX_ADDRS_SUPPORTED 64 u16 mc_addr_count; u16 m_cast_flg; u16 all_multi_pos; u16 promisc_flg; /* Restart timer, used to restart NIC if the device is stuck and * a schedule task that will set the correct Link state once the * NIC's PHY has stabilized after a state change. */ struct work_struct rst_timer_task; struct work_struct set_link_task; /* Flag that can be used to turn on or turn off the Rx checksum * offload feature. */ int rx_csum; /* Below variables are used for fifo selection to transmit a packet */ u16 fifo_selector[MAX_TX_FIFOS]; /* Total fifos for tcp packets */ u8 total_tcp_fifos; /* * Beginning index of udp for udp packets * Value will be equal to * (tx_fifo_num - FIFO_UDP_MAX_NUM - FIFO_OTHER_MAX_NUM) */ u8 udp_fifo_idx; u8 total_udp_fifos; /* * Beginning index of fifo for all other packets * Value will be equal to (tx_fifo_num - FIFO_OTHER_MAX_NUM) */ u8 other_fifo_idx; struct napi_struct napi; /* after blink, the adapter must be restored with original * values. */ u64 adapt_ctrl_org; /* Last known link state. */ u16 last_link_state; #define LINK_DOWN 1 #define LINK_UP 2 int task_flag; unsigned long long start_time; int vlan_strip_flag; #define MSIX_FLG 0xA5 int num_entries; struct msix_entry *entries; int msi_detected; wait_queue_head_t msi_wait; struct s2io_msix_entry *s2io_entries; char desc[MAX_REQUESTED_MSI_X][25]; int avail_msix_vectors; /* No. of MSI-X vectors granted by system */ struct msix_info_st msix_info[0x3f]; #define XFRAME_I_DEVICE 1 #define XFRAME_II_DEVICE 2 u8 device_type; unsigned long clubbed_frms_cnt; unsigned long sending_both; u16 lro_max_aggr_per_sess; volatile unsigned long state; u64 general_int_mask; #define VPD_STRING_LEN 80 u8 product_name[VPD_STRING_LEN]; u8 serial_num[VPD_STRING_LEN]; }; #define RESET_ERROR 1 #define CMD_ERROR 2 /* * Some registers have to be written in a particular order to * expect correct hardware operation. The macro SPECIAL_REG_WRITE * is used to perform such ordered writes. Defines UF (Upper First) * and LF (Lower First) will be used to specify the required write order. */ #define UF 1 #define LF 2 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order) { if (order == LF) { writel((u32) (val), addr); (void) readl(addr); writel((u32) (val >> 32), (addr + 4)); (void) readl(addr + 4); } else { writel((u32) (val >> 32), (addr + 4)); (void) readl(addr + 4); writel((u32) (val), addr); (void) readl(addr); } } /* Interrupt related values of Xena */ #define ENABLE_INTRS 1 #define DISABLE_INTRS 2 /* Highest level interrupt blocks */ #define TX_PIC_INTR (0x0001<<0) #define TX_DMA_INTR (0x0001<<1) #define TX_MAC_INTR (0x0001<<2) #define TX_XGXS_INTR (0x0001<<3) #define TX_TRAFFIC_INTR (0x0001<<4) #define RX_PIC_INTR (0x0001<<5) #define RX_DMA_INTR (0x0001<<6) #define RX_MAC_INTR (0x0001<<7) #define RX_XGXS_INTR (0x0001<<8) #define RX_TRAFFIC_INTR (0x0001<<9) #define MC_INTR (0x0001<<10) #define ENA_ALL_INTRS ( TX_PIC_INTR | \ TX_DMA_INTR | \ TX_MAC_INTR | \ TX_XGXS_INTR | \ TX_TRAFFIC_INTR | \ RX_PIC_INTR | \ RX_DMA_INTR | \ RX_MAC_INTR | \ RX_XGXS_INTR | \ RX_TRAFFIC_INTR | \ MC_INTR ) /* Interrupt masks for the general interrupt mask register */ #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL #define TXPIC_INT_M s2BIT(0) #define TXDMA_INT_M s2BIT(1) #define TXMAC_INT_M s2BIT(2) #define TXXGXS_INT_M s2BIT(3) #define TXTRAFFIC_INT_M s2BIT(8) #define PIC_RX_INT_M s2BIT(32) #define RXDMA_INT_M s2BIT(33) #define RXMAC_INT_M s2BIT(34) #define MC_INT_M s2BIT(35) #define RXXGXS_INT_M s2BIT(36) #define RXTRAFFIC_INT_M s2BIT(40) /* PIC level Interrupts TODO*/ /* DMA level Inressupts */ #define TXDMA_PFC_INT_M s2BIT(0) #define TXDMA_PCC_INT_M s2BIT(2) /* PFC block interrupts */ #define PFC_MISC_ERR_1 s2BIT(0) /* Interrupt to indicate FIFO full */ /* PCC block interrupts. */ #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate PCC_FB_ECC Error. */ #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG) /* * Prototype declaration. */ static int s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre); static void s2io_rem_nic(struct pci_dev *pdev); static int init_shared_mem(struct s2io_nic *sp); static void free_shared_mem(struct s2io_nic *sp); static int init_nic(struct s2io_nic *nic); static int rx_intr_handler(struct ring_info *ring_data, int budget); static void s2io_txpic_intr_handle(struct s2io_nic *sp); static void tx_intr_handler(struct fifo_info *fifo_data); static void s2io_handle_errors(void * dev_id); static void s2io_tx_watchdog(struct net_device *dev, unsigned int txqueue); static void s2io_set_multicast(struct net_device *dev, bool may_sleep); static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp); static void s2io_link(struct s2io_nic * sp, int link); static void s2io_reset(struct s2io_nic * sp); static int s2io_poll_msix(struct napi_struct *napi, int budget); static int s2io_poll_inta(struct napi_struct *napi, int budget); static void s2io_init_pci(struct s2io_nic * sp); static int do_s2io_prog_unicast(struct net_device *dev, const u8 *addr); static void s2io_alarm_handle(struct timer_list *t); static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id); static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id); static irqreturn_t s2io_isr(int irq, void *dev_id); static int verify_xena_quiescence(struct s2io_nic *sp); static const struct ethtool_ops netdev_ethtool_ops; static void s2io_set_link(struct work_struct *work); static int s2io_set_swapper(struct s2io_nic * sp); static void s2io_card_down(struct s2io_nic *nic); static int s2io_card_up(struct s2io_nic *nic); static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, int bit_state, bool may_sleep); static int s2io_add_isr(struct s2io_nic * sp); static void s2io_rem_isr(struct s2io_nic * sp); static void restore_xmsi_data(struct s2io_nic *nic); static void do_s2io_store_unicast_mc(struct s2io_nic *sp); static void do_s2io_restore_unicast_mc(struct s2io_nic *sp); static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset); static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr); static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int offset); static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr); static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro, struct RxD_t *rxdp, struct s2io_nic *sp); static void clear_lro_session(struct lro *lro); static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag); static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro); static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, struct sk_buff *skb, u32 tcp_len); static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring); static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state); static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev); static void s2io_io_resume(struct pci_dev *pdev); #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type #define S2IO_PARM_INT(X, def_val) \ static unsigned int X = def_val;\ module_param(X , uint, 0); #endif /* _S2IO_H */
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