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linux_dsm_epyc7002/drivers/net/ethernet/renesas/sh_eth.h
David S. Miller 0c1072ae02 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Conflicts:
	drivers/net/ethernet/freescale/fec_main.c
	drivers/net/ethernet/renesas/sh_eth.c
	net/ipv4/gre.c

The GRE conflict is between a bug fix (kfree_skb --> kfree_skb_list)
and the splitting of the gre.c code into seperate files.

The FEC conflict was two sets of changes adding ethtool support code
in an "!CONFIG_M5272" CPP protected block.

Finally the sh_eth.c conflict was between one commit add bits set
in the .eesr_err_check mask whilst another commit removed the
.tx_error_check member and assignments.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-03 14:55:13 -07:00

570 lines
13 KiB
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/*
* SuperH Ethernet device driver
*
* Copyright (C) 2006-2012 Nobuhiro Iwamatsu
* Copyright (C) 2008-2012 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#ifndef __SH_ETH_H__
#define __SH_ETH_H__
#define CARDNAME "sh-eth"
#define TX_TIMEOUT (5*HZ)
#define TX_RING_SIZE 64 /* Tx ring size */
#define RX_RING_SIZE 64 /* Rx ring size */
#define TX_RING_MIN 64
#define RX_RING_MIN 64
#define TX_RING_MAX 1024
#define RX_RING_MAX 1024
#define ETHERSMALL 60
#define PKT_BUF_SZ 1538
#define SH_ETH_TSU_TIMEOUT_MS 500
#define SH_ETH_TSU_CAM_ENTRIES 32
enum {
/* E-DMAC registers */
EDSR = 0,
EDMR,
EDTRR,
EDRRR,
EESR,
EESIPR,
TDLAR,
TDFAR,
TDFXR,
TDFFR,
RDLAR,
RDFAR,
RDFXR,
RDFFR,
TRSCER,
RMFCR,
TFTR,
FDR,
RMCR,
EDOCR,
TFUCR,
RFOCR,
FCFTR,
RPADIR,
TRIMD,
RBWAR,
TBRAR,
/* Ether registers */
ECMR,
ECSR,
ECSIPR,
PIR,
PSR,
RDMLR,
PIPR,
RFLR,
IPGR,
APR,
MPR,
PFTCR,
PFRCR,
RFCR,
RFCF,
TPAUSER,
TPAUSECR,
BCFR,
BCFRR,
GECMR,
BCULR,
MAHR,
MALR,
TROCR,
CDCR,
LCCR,
CNDCR,
CEFCR,
FRECR,
TSFRCR,
TLFRCR,
CERCR,
CEECR,
MAFCR,
RTRATE,
CSMR,
RMII_MII,
/* TSU Absolute address */
ARSTR,
TSU_CTRST,
TSU_FWEN0,
TSU_FWEN1,
TSU_FCM,
TSU_BSYSL0,
TSU_BSYSL1,
TSU_PRISL0,
TSU_PRISL1,
TSU_FWSL0,
TSU_FWSL1,
TSU_FWSLC,
TSU_QTAG0,
TSU_QTAG1,
TSU_QTAGM0,
TSU_QTAGM1,
TSU_FWSR,
TSU_FWINMK,
TSU_ADQT0,
TSU_ADQT1,
TSU_VTAG0,
TSU_VTAG1,
TSU_ADSBSY,
TSU_TEN,
TSU_POST1,
TSU_POST2,
TSU_POST3,
TSU_POST4,
TSU_ADRH0,
TSU_ADRL0,
TSU_ADRH31,
TSU_ADRL31,
TXNLCR0,
TXALCR0,
RXNLCR0,
RXALCR0,
FWNLCR0,
FWALCR0,
TXNLCR1,
TXALCR1,
RXNLCR1,
RXALCR1,
FWNLCR1,
FWALCR1,
/* This value must be written at last. */
SH_ETH_MAX_REGISTER_OFFSET,
};
/* Driver's parameters */
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
#define SH4_SKB_RX_ALIGN 32
#else
#define SH2_SH3_SKB_RX_ALIGN 2
#endif
/*
* Register's bits
*/
/* EDSR : sh7734, sh7757, sh7763, and r8a7740 only */
enum EDSR_BIT {
EDSR_ENT = 0x01, EDSR_ENR = 0x02,
};
#define EDSR_ENALL (EDSR_ENT|EDSR_ENR)
/* GECMR : sh7734, sh7763 and r8a7740 only */
enum GECMR_BIT {
GECMR_10 = 0x0, GECMR_100 = 0x04, GECMR_1000 = 0x01,
};
/* EDMR */
enum DMAC_M_BIT {
EDMR_EL = 0x40, /* Litte endian */
EDMR_DL1 = 0x20, EDMR_DL0 = 0x10,
EDMR_SRST_GETHER = 0x03,
EDMR_SRST_ETHER = 0x01,
};
/* EDTRR */
enum DMAC_T_BIT {
EDTRR_TRNS_GETHER = 0x03,
EDTRR_TRNS_ETHER = 0x01,
};
/* EDRRR*/
enum EDRRR_R_BIT {
EDRRR_R = 0x01,
};
/* TPAUSER */
enum TPAUSER_BIT {
TPAUSER_TPAUSE = 0x0000ffff,
TPAUSER_UNLIMITED = 0,
};
/* BCFR */
enum BCFR_BIT {
BCFR_RPAUSE = 0x0000ffff,
BCFR_UNLIMITED = 0,
};
/* PIR */
enum PIR_BIT {
PIR_MDI = 0x08, PIR_MDO = 0x04, PIR_MMD = 0x02, PIR_MDC = 0x01,
};
/* PSR */
enum PHY_STATUS_BIT { PHY_ST_LINK = 0x01, };
/* EESR */
enum EESR_BIT {
EESR_TWB1 = 0x80000000,
EESR_TWB = 0x40000000, /* same as TWB0 */
EESR_TC1 = 0x20000000,
EESR_TUC = 0x10000000,
EESR_ROC = 0x08000000,
EESR_TABT = 0x04000000,
EESR_RABT = 0x02000000,
EESR_RFRMER = 0x01000000, /* same as RFCOF */
EESR_ADE = 0x00800000,
EESR_ECI = 0x00400000,
EESR_FTC = 0x00200000, /* same as TC or TC0 */
EESR_TDE = 0x00100000,
EESR_TFE = 0x00080000, /* same as TFUF */
EESR_FRC = 0x00040000, /* same as FR */
EESR_RDE = 0x00020000,
EESR_RFE = 0x00010000,
EESR_CND = 0x00000800,
EESR_DLC = 0x00000400,
EESR_CD = 0x00000200,
EESR_RTO = 0x00000100,
EESR_RMAF = 0x00000080,
EESR_CEEF = 0x00000040,
EESR_CELF = 0x00000020,
EESR_RRF = 0x00000010,
EESR_RTLF = 0x00000008,
EESR_RTSF = 0x00000004,
EESR_PRE = 0x00000002,
EESR_CERF = 0x00000001,
};
#define EESR_RX_CHECK (EESR_FRC | /* Frame recv */ \
EESR_RMAF | /* Multicast address recv */ \
EESR_RRF | /* Bit frame recv */ \
EESR_RTLF | /* Long frame recv */ \
EESR_RTSF | /* Short frame recv */ \
EESR_PRE | /* PHY-LSI recv error */ \
EESR_CERF) /* Recv frame CRC error */
#define DEFAULT_TX_CHECK (EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | \
EESR_RTO)
#define DEFAULT_EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | \
EESR_RDE | EESR_RFRMER | EESR_ADE | \
EESR_TFE | EESR_TDE | EESR_ECI)
/* EESIPR */
enum DMAC_IM_BIT {
DMAC_M_TWB = 0x40000000, DMAC_M_TABT = 0x04000000,
DMAC_M_RABT = 0x02000000,
DMAC_M_RFRMER = 0x01000000, DMAC_M_ADF = 0x00800000,
DMAC_M_ECI = 0x00400000, DMAC_M_FTC = 0x00200000,
DMAC_M_TDE = 0x00100000, DMAC_M_TFE = 0x00080000,
DMAC_M_FRC = 0x00040000, DMAC_M_RDE = 0x00020000,
DMAC_M_RFE = 0x00010000, DMAC_M_TINT4 = 0x00000800,
DMAC_M_TINT3 = 0x00000400, DMAC_M_TINT2 = 0x00000200,
DMAC_M_TINT1 = 0x00000100, DMAC_M_RINT8 = 0x00000080,
DMAC_M_RINT5 = 0x00000010, DMAC_M_RINT4 = 0x00000008,
DMAC_M_RINT3 = 0x00000004, DMAC_M_RINT2 = 0x00000002,
DMAC_M_RINT1 = 0x00000001,
};
/* Receive descriptor bit */
enum RD_STS_BIT {
RD_RACT = 0x80000000, RD_RDEL = 0x40000000,
RD_RFP1 = 0x20000000, RD_RFP0 = 0x10000000,
RD_RFE = 0x08000000, RD_RFS10 = 0x00000200,
RD_RFS9 = 0x00000100, RD_RFS8 = 0x00000080,
RD_RFS7 = 0x00000040, RD_RFS6 = 0x00000020,
RD_RFS5 = 0x00000010, RD_RFS4 = 0x00000008,
RD_RFS3 = 0x00000004, RD_RFS2 = 0x00000002,
RD_RFS1 = 0x00000001,
};
#define RDF1ST RD_RFP1
#define RDFEND RD_RFP0
#define RD_RFP (RD_RFP1|RD_RFP0)
/* FCFTR */
enum FCFTR_BIT {
FCFTR_RFF2 = 0x00040000, FCFTR_RFF1 = 0x00020000,
FCFTR_RFF0 = 0x00010000, FCFTR_RFD2 = 0x00000004,
FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001,
};
#define DEFAULT_FIFO_F_D_RFF (FCFTR_RFF2 | FCFTR_RFF1 | FCFTR_RFF0)
#define DEFAULT_FIFO_F_D_RFD (FCFTR_RFD2 | FCFTR_RFD1 | FCFTR_RFD0)
/* Transmit descriptor bit */
enum TD_STS_BIT {
TD_TACT = 0x80000000, TD_TDLE = 0x40000000,
TD_TFP1 = 0x20000000, TD_TFP0 = 0x10000000,
TD_TFE = 0x08000000, TD_TWBI = 0x04000000,
};
#define TDF1ST TD_TFP1
#define TDFEND TD_TFP0
#define TD_TFP (TD_TFP1|TD_TFP0)
/* RMCR */
#define DEFAULT_RMCR_VALUE 0x00000000
/* ECMR */
enum FELIC_MODE_BIT {
ECMR_TRCCM = 0x04000000, ECMR_RCSC = 0x00800000,
ECMR_DPAD = 0x00200000, ECMR_RZPF = 0x00100000,
ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000,
ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000,
ECMR_PMDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
ECMR_RTM = 0x00000010, ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004,
ECMR_DM = 0x00000002, ECMR_PRM = 0x00000001,
};
/* ECSR */
enum ECSR_STATUS_BIT {
ECSR_BRCRX = 0x20, ECSR_PSRTO = 0x10,
ECSR_LCHNG = 0x04,
ECSR_MPD = 0x02, ECSR_ICD = 0x01,
};
#define DEFAULT_ECSR_INIT (ECSR_BRCRX | ECSR_PSRTO | ECSR_LCHNG | \
ECSR_ICD | ECSIPR_MPDIP)
/* ECSIPR */
enum ECSIPR_STATUS_MASK_BIT {
ECSIPR_BRCRXIP = 0x20, ECSIPR_PSRTOIP = 0x10,
ECSIPR_LCHNGIP = 0x04,
ECSIPR_MPDIP = 0x02, ECSIPR_ICDIP = 0x01,
};
#define DEFAULT_ECSIPR_INIT (ECSIPR_BRCRXIP | ECSIPR_PSRTOIP | \
ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP)
/* APR */
enum APR_BIT {
APR_AP = 0x00000001,
};
/* MPR */
enum MPR_BIT {
MPR_MP = 0x00000001,
};
/* TRSCER */
enum DESC_I_BIT {
DESC_I_TINT4 = 0x0800, DESC_I_TINT3 = 0x0400, DESC_I_TINT2 = 0x0200,
DESC_I_TINT1 = 0x0100, DESC_I_RINT8 = 0x0080, DESC_I_RINT5 = 0x0010,
DESC_I_RINT4 = 0x0008, DESC_I_RINT3 = 0x0004, DESC_I_RINT2 = 0x0002,
DESC_I_RINT1 = 0x0001,
};
/* RPADIR */
enum RPADIR_BIT {
RPADIR_PADS1 = 0x20000, RPADIR_PADS0 = 0x10000,
RPADIR_PADR = 0x0003f,
};
/* FDR */
#define DEFAULT_FDR_INIT 0x00000707
/* ARSTR */
enum ARSTR_BIT { ARSTR_ARSTR = 0x00000001, };
/* TSU_FWEN0 */
enum TSU_FWEN0_BIT {
TSU_FWEN0_0 = 0x00000001,
};
/* TSU_ADSBSY */
enum TSU_ADSBSY_BIT {
TSU_ADSBSY_0 = 0x00000001,
};
/* TSU_TEN */
enum TSU_TEN_BIT {
TSU_TEN_0 = 0x80000000,
};
/* TSU_FWSL0 */
enum TSU_FWSL0_BIT {
TSU_FWSL0_FW50 = 0x1000, TSU_FWSL0_FW40 = 0x0800,
TSU_FWSL0_FW30 = 0x0400, TSU_FWSL0_FW20 = 0x0200,
TSU_FWSL0_FW10 = 0x0100, TSU_FWSL0_RMSA0 = 0x0010,
};
/* TSU_FWSLC */
enum TSU_FWSLC_BIT {
TSU_FWSLC_POSTENU = 0x2000, TSU_FWSLC_POSTENL = 0x1000,
TSU_FWSLC_CAMSEL03 = 0x0080, TSU_FWSLC_CAMSEL02 = 0x0040,
TSU_FWSLC_CAMSEL01 = 0x0020, TSU_FWSLC_CAMSEL00 = 0x0010,
TSU_FWSLC_CAMSEL13 = 0x0008, TSU_FWSLC_CAMSEL12 = 0x0004,
TSU_FWSLC_CAMSEL11 = 0x0002, TSU_FWSLC_CAMSEL10 = 0x0001,
};
/* TSU_VTAGn */
#define TSU_VTAG_ENABLE 0x80000000
#define TSU_VTAG_VID_MASK 0x00000fff
/*
* The sh ether Tx buffer descriptors.
* This structure should be 20 bytes.
*/
struct sh_eth_txdesc {
u32 status; /* TD0 */
#if defined(__LITTLE_ENDIAN)
u16 pad0; /* TD1 */
u16 buffer_length; /* TD1 */
#else
u16 buffer_length; /* TD1 */
u16 pad0; /* TD1 */
#endif
u32 addr; /* TD2 */
u32 pad1; /* padding data */
} __attribute__((aligned(2), packed));
/*
* The sh ether Rx buffer descriptors.
* This structure should be 20 bytes.
*/
struct sh_eth_rxdesc {
u32 status; /* RD0 */
#if defined(__LITTLE_ENDIAN)
u16 frame_length; /* RD1 */
u16 buffer_length; /* RD1 */
#else
u16 buffer_length; /* RD1 */
u16 frame_length; /* RD1 */
#endif
u32 addr; /* RD2 */
u32 pad0; /* padding data */
} __attribute__((aligned(2), packed));
/* This structure is used by each CPU dependency handling. */
struct sh_eth_cpu_data {
/* optional functions */
void (*chip_reset)(struct net_device *ndev);
void (*set_duplex)(struct net_device *ndev);
void (*set_rate)(struct net_device *ndev);
/* mandatory initialize value */
unsigned long eesipr_value;
/* optional initialize value */
unsigned long ecsr_value;
unsigned long ecsipr_value;
unsigned long fdr_value;
unsigned long fcftr_value;
unsigned long rpadir_value;
unsigned long rmcr_value;
/* interrupt checking mask */
unsigned long tx_check;
unsigned long eesr_err_check;
/* hardware features */
unsigned long irq_flags; /* IRQ configuration flags */
unsigned no_psr:1; /* EtherC DO NOT have PSR */
unsigned apr:1; /* EtherC have APR */
unsigned mpr:1; /* EtherC have MPR */
unsigned tpauser:1; /* EtherC have TPAUSER */
unsigned bculr:1; /* EtherC have BCULR */
unsigned tsu:1; /* EtherC have TSU */
unsigned hw_swap:1; /* E-DMAC have DE bit in EDMR */
unsigned rpadir:1; /* E-DMAC have RPADIR */
unsigned no_trimd:1; /* E-DMAC DO NOT have TRIMD */
unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */
unsigned hw_crc:1; /* E-DMAC have CSMR */
unsigned select_mii:1; /* EtherC have RMII_MII (MII select register) */
unsigned shift_rd0:1; /* shift Rx descriptor word 0 right by 16 */
};
struct sh_eth_private {
struct platform_device *pdev;
struct sh_eth_cpu_data *cd;
const u16 *reg_offset;
void __iomem *addr;
void __iomem *tsu_addr;
u32 num_rx_ring;
u32 num_tx_ring;
dma_addr_t rx_desc_dma;
dma_addr_t tx_desc_dma;
struct sh_eth_rxdesc *rx_ring;
struct sh_eth_txdesc *tx_ring;
struct sk_buff **rx_skbuff;
struct sk_buff **tx_skbuff;
spinlock_t lock;
u32 cur_rx, dirty_rx; /* Producer/consumer ring indices */
u32 cur_tx, dirty_tx;
u32 rx_buf_sz; /* Based on MTU+slack. */
int edmac_endian;
struct napi_struct napi;
/* MII transceiver section. */
u32 phy_id; /* PHY ID */
struct mii_bus *mii_bus; /* MDIO bus control */
struct phy_device *phydev; /* PHY device control */
int link;
phy_interface_t phy_interface;
int msg_enable;
int speed;
int duplex;
int port; /* for TSU */
int vlan_num_ids; /* for VLAN tag filter */
unsigned no_ether_link:1;
unsigned ether_link_active_low:1;
};
static inline void sh_eth_soft_swap(char *src, int len)
{
#ifdef __LITTLE_ENDIAN__
u32 *p = (u32 *)src;
u32 *maxp;
maxp = p + ((len + sizeof(u32) - 1) / sizeof(u32));
for (; p < maxp; p++)
*p = swab32(*p);
#endif
}
static inline void sh_eth_write(struct net_device *ndev, unsigned long data,
int enum_index)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
iowrite32(data, mdp->addr + mdp->reg_offset[enum_index]);
}
static inline unsigned long sh_eth_read(struct net_device *ndev,
int enum_index)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
return ioread32(mdp->addr + mdp->reg_offset[enum_index]);
}
static inline void *sh_eth_tsu_get_offset(struct sh_eth_private *mdp,
int enum_index)
{
return mdp->tsu_addr + mdp->reg_offset[enum_index];
}
static inline void sh_eth_tsu_write(struct sh_eth_private *mdp,
unsigned long data, int enum_index)
{
iowrite32(data, mdp->tsu_addr + mdp->reg_offset[enum_index]);
}
static inline unsigned long sh_eth_tsu_read(struct sh_eth_private *mdp,
int enum_index)
{
return ioread32(mdp->tsu_addr + mdp->reg_offset[enum_index]);
}
#endif /* #ifndef __SH_ETH_H__ */
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