diff options
Diffstat (limited to 'drivers/net/sb1250-mac.c')
| -rw-r--r-- | drivers/net/sb1250-mac.c | 278 |
1 files changed, 142 insertions, 136 deletions
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c index 6001ab4..0cffd46 100644 --- a/drivers/net/sb1250-mac.c +++ b/drivers/net/sb1250-mac.c @@ -140,17 +140,17 @@ MODULE_PARM_DESC(int_timeout_rx, "RX timeout value"); ********************************************************************* */ -typedef enum { sbmac_speed_auto, sbmac_speed_10, - sbmac_speed_100, sbmac_speed_1000 } sbmac_speed_t; +enum sbmac_speed { sbmac_speed_auto, sbmac_speed_10, + sbmac_speed_100, sbmac_speed_1000 }; -typedef enum { sbmac_duplex_auto, sbmac_duplex_half, - sbmac_duplex_full } sbmac_duplex_t; +enum sbmac_duplex { sbmac_duplex_auto, sbmac_duplex_half, + sbmac_duplex_full }; -typedef enum { sbmac_fc_auto, sbmac_fc_disabled, sbmac_fc_frame, - sbmac_fc_collision, sbmac_fc_carrier } sbmac_fc_t; +enum sbmac_fc { sbmac_fc_auto, sbmac_fc_disabled, sbmac_fc_frame, + sbmac_fc_collision, sbmac_fc_carrier } sbmac_fc_t; -typedef enum { sbmac_state_uninit, sbmac_state_off, sbmac_state_on, - sbmac_state_broken } sbmac_state_t; +enum sbmac_state { sbmac_state_uninit, sbmac_state_off, sbmac_state_on, + sbmac_state_broken }; /********************************************************************** @@ -176,55 +176,61 @@ typedef enum { sbmac_state_uninit, sbmac_state_off, sbmac_state_on, * DMA Descriptor structure ********************************************************************* */ -typedef struct sbdmadscr_s { +struct sbdmadscr { uint64_t dscr_a; uint64_t dscr_b; -} sbdmadscr_t; - -typedef unsigned long paddr_t; +}; /********************************************************************** * DMA Controller structure ********************************************************************* */ -typedef struct sbmacdma_s { +struct sbmacdma { /* * This stuff is used to identify the channel and the registers * associated with it. */ - - struct sbmac_softc *sbdma_eth; /* back pointer to associated MAC */ - int sbdma_channel; /* channel number */ - int sbdma_txdir; /* direction (1=transmit) */ - int sbdma_maxdescr; /* total # of descriptors in ring */ + struct sbmac_softc *sbdma_eth; /* back pointer to associated + MAC */ + int sbdma_channel; /* channel number */ + int sbdma_txdir; /* direction (1=transmit) */ + int sbdma_maxdescr; /* total # of descriptors + in ring */ #ifdef CONFIG_SBMAC_COALESCE - int sbdma_int_pktcnt; /* # descriptors rx/tx before interrupt*/ - int sbdma_int_timeout; /* # usec rx/tx interrupt */ + int sbdma_int_pktcnt; + /* # descriptors rx/tx + before interrupt */ + int sbdma_int_timeout; + /* # usec rx/tx interrupt */ #endif - - volatile void __iomem *sbdma_config0; /* DMA config register 0 */ - volatile void __iomem *sbdma_config1; /* DMA config register 1 */ - volatile void __iomem *sbdma_dscrbase; /* Descriptor base address */ - volatile void __iomem *sbdma_dscrcnt; /* Descriptor count register */ - volatile void __iomem *sbdma_curdscr; /* current descriptor address */ - volatile void __iomem *sbdma_oodpktlost;/* pkt drop (rx only) */ - + void __iomem *sbdma_config0; /* DMA config register 0 */ + void __iomem *sbdma_config1; /* DMA config register 1 */ + void __iomem *sbdma_dscrbase; + /* descriptor base address */ + void __iomem *sbdma_dscrcnt; /* descriptor count register */ + void __iomem *sbdma_curdscr; /* current descriptor + address */ + void __iomem *sbdma_oodpktlost; + /* pkt drop (rx only) */ /* * This stuff is for maintenance of the ring */ - - sbdmadscr_t *sbdma_dscrtable_unaligned; - sbdmadscr_t *sbdma_dscrtable; /* base of descriptor table */ - sbdmadscr_t *sbdma_dscrtable_end; /* end of descriptor table */ - - struct sk_buff **sbdma_ctxtable; /* context table, one per descr */ - - paddr_t sbdma_dscrtable_phys; /* and also the phys addr */ - sbdmadscr_t *sbdma_addptr; /* next dscr for sw to add */ - sbdmadscr_t *sbdma_remptr; /* next dscr for sw to remove */ -} sbmacdma_t; + void *sbdma_dscrtable_unaligned; + struct sbdmadscr *sbdma_dscrtable; + /* base of descriptor table */ + struct sbdmadscr *sbdma_dscrtable_end; + /* end of descriptor table */ + struct sk_buff **sbdma_ctxtable; + /* context table, one + per descr */ + dma_addr_t sbdma_dscrtable_phys; + /* and also the phys addr */ + struct sbdmadscr *sbdma_addptr; /* next dscr for sw to add */ + struct sbdmadscr *sbdma_remptr; /* next dscr for sw + to remove */ +}; /********************************************************************** @@ -236,47 +242,45 @@ struct sbmac_softc { /* * Linux-specific things */ + struct net_device *sbm_dev; /* pointer to linux device */ + struct napi_struct napi; + spinlock_t sbm_lock; /* spin lock */ + struct timer_list sbm_timer; /* for monitoring MII */ + int sbm_devflags; /* current device flags */ - struct net_device *sbm_dev; /* pointer to linux device */ - struct napi_struct napi; - spinlock_t sbm_lock; /* spin lock */ - struct timer_list sbm_timer; /* for monitoring MII */ - int sbm_devflags; /* current device flags */ - - int sbm_phy_oldbmsr; - int sbm_phy_oldanlpar; - int sbm_phy_oldk1stsr; - int sbm_phy_oldlinkstat; - int sbm_buffersize; + int sbm_phy_oldbmsr; + int sbm_phy_oldanlpar; + int sbm_phy_oldk1stsr; + int sbm_phy_oldlinkstat; + int sbm_buffersize; - unsigned char sbm_phys[2]; + unsigned char sbm_phys[2]; /* * Controller-specific things */ + void __iomem *sbm_base; /* MAC's base address */ + enum sbmac_state sbm_state; /* current state */ - void __iomem *sbm_base; /* MAC's base address */ - sbmac_state_t sbm_state; /* current state */ + void __iomem *sbm_macenable; /* MAC Enable Register */ + void __iomem *sbm_maccfg; /* MAC Config Register */ + void __iomem *sbm_fifocfg; /* FIFO Config Register */ + void __iomem *sbm_framecfg; /* Frame Config Register */ + void __iomem *sbm_rxfilter; /* Receive Filter Register */ + void __iomem *sbm_isr; /* Interrupt Status Register */ + void __iomem *sbm_imr; /* Interrupt Mask Register */ + void __iomem *sbm_mdio; /* MDIO Register */ - volatile void __iomem *sbm_macenable; /* MAC Enable Register */ - volatile void __iomem *sbm_maccfg; /* MAC Configuration Register */ - volatile void __iomem *sbm_fifocfg; /* FIFO configuration register */ - volatile void __iomem *sbm_framecfg; /* Frame configuration register */ - volatile void __iomem *sbm_rxfilter; /* receive filter register */ - volatile void __iomem *sbm_isr; /* Interrupt status register */ - volatile void __iomem *sbm_imr; /* Interrupt mask register */ - volatile void __iomem *sbm_mdio; /* MDIO register */ + enum sbmac_speed sbm_speed; /* current speed */ + enum sbmac_duplex sbm_duplex; /* current duplex */ + enum sbmac_fc sbm_fc; /* cur. flow control setting */ - sbmac_speed_t sbm_speed; /* current speed */ - sbmac_duplex_t sbm_duplex; /* current duplex */ - sbmac_fc_t sbm_fc; /* current flow control setting */ + unsigned char sbm_hwaddr[ETHER_ADDR_LEN]; - unsigned char sbm_hwaddr[ETHER_ADDR_LEN]; - - sbmacdma_t sbm_txdma; /* for now, only use channel 0 */ - sbmacdma_t sbm_rxdma; - int rx_hw_checksum; - int sbe_idx; + struct sbmacdma sbm_txdma; /* only channel 0 for now */ + struct sbmacdma sbm_rxdma; + int rx_hw_checksum; + int sbe_idx; }; @@ -288,30 +292,31 @@ struct sbmac_softc { * Prototypes ********************************************************************* */ -static void sbdma_initctx(sbmacdma_t *d, - struct sbmac_softc *s, - int chan, - int txrx, - int maxdescr); -static void sbdma_channel_start(sbmacdma_t *d, int rxtx); -static int sbdma_add_rcvbuffer(sbmacdma_t *d,struct sk_buff *m); -static int sbdma_add_txbuffer(sbmacdma_t *d,struct sk_buff *m); -static void sbdma_emptyring(sbmacdma_t *d); -static void sbdma_fillring(sbmacdma_t *d); -static int sbdma_rx_process(struct sbmac_softc *sc,sbmacdma_t *d, int work_to_do, int poll); -static void sbdma_tx_process(struct sbmac_softc *sc,sbmacdma_t *d, int poll); +static void sbdma_initctx(struct sbmacdma *d, struct sbmac_softc *s, int chan, + int txrx, int maxdescr); +static void sbdma_channel_start(struct sbmacdma *d, int rxtx); +static int sbdma_add_rcvbuffer(struct sbmacdma *d, struct sk_buff *m); +static int sbdma_add_txbuffer(struct sbmacdma *d, struct sk_buff *m); +static void sbdma_emptyring(struct sbmacdma *d); +static void sbdma_fillring(struct sbmacdma *d); +static int sbdma_rx_process(struct sbmac_softc *sc, struct sbmacdma *d, + int work_to_do, int poll); +static void sbdma_tx_process(struct sbmac_softc *sc, struct sbmacdma *d, + int poll); static int sbmac_initctx(struct sbmac_softc *s); static void sbmac_channel_start(struct sbmac_softc *s); static void sbmac_channel_stop(struct sbmac_softc *s); -static sbmac_state_t sbmac_set_channel_state(struct sbmac_softc *,sbmac_state_t); -static void sbmac_promiscuous_mode(struct sbmac_softc *sc,int onoff); +static enum sbmac_state sbmac_set_channel_state(struct sbmac_softc *, + enum sbmac_state); +static void sbmac_promiscuous_mode(struct sbmac_softc *sc, int onoff); static uint64_t sbmac_addr2reg(unsigned char *ptr); -static irqreturn_t sbmac_intr(int irq,void *dev_instance); +static irqreturn_t sbmac_intr(int irq, void *dev_instance); static int sbmac_start_tx(struct sk_buff *skb, struct net_device *dev); static void sbmac_setmulti(struct sbmac_softc *sc); static int sbmac_init(struct net_device *dev, int idx); -static int sbmac_set_speed(struct sbmac_softc *s,sbmac_speed_t speed); -static int sbmac_set_duplex(struct sbmac_softc *s,sbmac_duplex_t duplex,sbmac_fc_t fc); +static int sbmac_set_speed(struct sbmac_softc *s, enum sbmac_speed speed); +static int sbmac_set_duplex(struct sbmac_softc *s, enum sbmac_duplex duplex, + enum sbmac_fc fc); static int sbmac_open(struct net_device *dev); static void sbmac_timer(unsigned long data); @@ -321,13 +326,15 @@ static int sbmac_mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static int sbmac_close(struct net_device *dev); static int sbmac_poll(struct napi_struct *napi, int budget); -static int sbmac_mii_poll(struct sbmac_softc *s,int noisy); +static int sbmac_mii_poll(struct sbmac_softc *s, int noisy); static int sbmac_mii_probe(struct net_device *dev); static void sbmac_mii_sync(struct sbmac_softc *s); -static void sbmac_mii_senddata(struct sbmac_softc *s,unsigned int data, int bitcnt); -static unsigned int sbmac_mii_read(struct sbmac_softc *s,int phyaddr,int regidx); -static void sbmac_mii_write(struct sbmac_softc *s,int phyaddr,int regidx, +static void sbmac_mii_senddata(struct sbmac_softc *s, unsigned int data, + int bitcnt); +static unsigned int sbmac_mii_read(struct sbmac_softc *s, int phyaddr, + int regidx); +static void sbmac_mii_write(struct sbmac_softc *s, int phyaddr, int regidx, unsigned int regval); @@ -676,8 +683,8 @@ static void sbmac_mii_write(struct sbmac_softc *s,int phyaddr,int regidx, * way. * * Input parameters: - * d - sbmacdma_t structure (DMA channel context) - * s - sbmac_softc structure (pointer to a MAC) + * d - struct sbmacdma (DMA channel context) + * s - struct sbmac_softc (pointer to a MAC) * chan - channel number (0..1 right now) * txrx - Identifies DMA_TX or DMA_RX for channel direction * maxdescr - number of descriptors @@ -686,11 +693,8 @@ static void sbmac_mii_write(struct sbmac_softc *s,int phyaddr,int regidx, * nothing ********************************************************************* */ -static void sbdma_initctx(sbmacdma_t *d, - struct sbmac_softc *s, - int chan, - int txrx, - int maxdescr) +static void sbdma_initctx(struct sbmacdma *d, struct sbmac_softc *s, int chan, + int txrx, int maxdescr) { #ifdef CONFIG_SBMAC_COALESCE int int_pktcnt, int_timeout; @@ -757,18 +761,17 @@ static void sbdma_initctx(sbmacdma_t *d, d->sbdma_maxdescr = maxdescr; - d->sbdma_dscrtable_unaligned = - d->sbdma_dscrtable = (sbdmadscr_t *) - kmalloc((d->sbdma_maxdescr+1)*sizeof(sbdmadscr_t), GFP_KERNEL); + d->sbdma_dscrtable_unaligned = kcalloc(d->sbdma_maxdescr + 1, + sizeof(*d->sbdma_dscrtable), + GFP_KERNEL); /* * The descriptor table must be aligned to at least 16 bytes or the * MAC will corrupt it. */ - d->sbdma_dscrtable = (sbdmadscr_t *) - ALIGN((unsigned long)d->sbdma_dscrtable, sizeof(sbdmadscr_t)); - - memset(d->sbdma_dscrtable,0,d->sbdma_maxdescr*sizeof(sbdmadscr_t)); + d->sbdma_dscrtable = (struct sbdmadscr *) + ALIGN((unsigned long)d->sbdma_dscrtable_unaligned, + sizeof(*d->sbdma_dscrtable)); d->sbdma_dscrtable_end = d->sbdma_dscrtable + d->sbdma_maxdescr; @@ -779,7 +782,7 @@ static void sbdma_initctx(sbmacdma_t *d, */ d->sbdma_ctxtable = kcalloc(d->sbdma_maxdescr, - sizeof(struct sk_buff *), GFP_KERNEL); + sizeof(*d->sbdma_ctxtable), GFP_KERNEL); #ifdef CONFIG_SBMAC_COALESCE /* @@ -816,7 +819,7 @@ static void sbdma_initctx(sbmacdma_t *d, * nothing ********************************************************************* */ -static void sbdma_channel_start(sbmacdma_t *d, int rxtx ) +static void sbdma_channel_start(struct sbmacdma *d, int rxtx) { /* * Turn on the DMA channel @@ -857,7 +860,7 @@ static void sbdma_channel_start(sbmacdma_t *d, int rxtx ) * nothing ********************************************************************* */ -static void sbdma_channel_stop(sbmacdma_t *d) +static void sbdma_channel_stop(struct sbmacdma *d) { /* * Turn off the DMA channel @@ -906,10 +909,10 @@ static void sbdma_align_skb(struct sk_buff *skb,int power2,int offset) ********************************************************************* */ -static int sbdma_add_rcvbuffer(sbmacdma_t *d,struct sk_buff *sb) +static int sbdma_add_rcvbuffer(struct sbmacdma *d, struct sk_buff *sb) { - sbdmadscr_t *dsc; - sbdmadscr_t *nextdsc; + struct sbdmadscr *dsc; + struct sbdmadscr *nextdsc; struct sk_buff *sb_new = NULL; int pktsize = ENET_PACKET_SIZE; @@ -1021,10 +1024,10 @@ static int sbdma_add_rcvbuffer(sbmacdma_t *d,struct sk_buff *sb) ********************************************************************* */ -static int sbdma_add_txbuffer(sbmacdma_t *d,struct sk_buff *sb) +static int sbdma_add_txbuffer(struct sbmacdma *d, struct sk_buff *sb) { - sbdmadscr_t *dsc; - sbdmadscr_t *nextdsc; + struct sbdmadscr *dsc; + struct sbdmadscr *nextdsc; uint64_t phys; uint64_t ncb; int length; @@ -1110,7 +1113,7 @@ static int sbdma_add_txbuffer(sbmacdma_t *d,struct sk_buff *sb) * nothing ********************************************************************* */ -static void sbdma_emptyring(sbmacdma_t *d) +static void sbdma_emptyring(struct sbmacdma *d) { int idx; struct sk_buff *sb; @@ -1138,7 +1141,7 @@ static void sbdma_emptyring(sbmacdma_t *d) * nothing ********************************************************************* */ -static void sbdma_fillring(sbmacdma_t *d) +static void sbdma_fillring(struct sbmacdma *d) { int idx; @@ -1185,13 +1188,13 @@ static void sbmac_netpoll(struct net_device *netdev) * nothing ********************************************************************* */ -static int sbdma_rx_process(struct sbmac_softc *sc,sbmacdma_t *d, - int work_to_do, int poll) +static int sbdma_rx_process(struct sbmac_softc *sc, struct sbmacdma *d, + int work_to_do, int poll) { struct net_device *dev = sc->sbm_dev; int curidx; int hwidx; - sbdmadscr_t *dsc; + struct sbdmadscr *dsc; struct sk_buff *sb; int len; int work_done = 0; @@ -1223,8 +1226,9 @@ again: prefetch(dsc); prefetch(&d->sbdma_ctxtable[curidx]); - hwidx = (int) (((__raw_readq(d->sbdma_curdscr) & M_DMA_CURDSCR_ADDR) - - d->sbdma_dscrtable_phys) / sizeof(sbdmadscr_t)); + hwidx = ((__raw_readq(d->sbdma_curdscr) & M_DMA_CURDSCR_ADDR) - + d->sbdma_dscrtable_phys) / + sizeof(*d->sbdma_dscrtable); /* * If they're the same, that means we've processed all @@ -1348,12 +1352,13 @@ done: * nothing ********************************************************************* */ -static void sbdma_tx_process(struct sbmac_softc *sc,sbmacdma_t *d, int poll) +static void sbdma_tx_process(struct sbmac_softc *sc, struct sbmacdma *d, + int poll) { struct net_device *dev = sc->sbm_dev; int curidx; int hwidx; - sbdmadscr_t *dsc; + struct sbdmadscr *dsc; struct sk_buff *sb; unsigned long flags; int packets_handled = 0; @@ -1363,8 +1368,8 @@ static void sbdma_tx_process(struct sbmac_softc *sc,sbmacdma_t *d, int poll) if (d->sbdma_remptr == d->sbdma_addptr) goto end_unlock; - hwidx = (int) (((__raw_readq(d->sbdma_curdscr) & M_DMA_CURDSCR_ADDR) - - d->sbdma_dscrtable_phys) / sizeof(sbdmadscr_t)); + hwidx = ((__raw_readq(d->sbdma_curdscr) & M_DMA_CURDSCR_ADDR) - + d->sbdma_dscrtable_phys) / sizeof(*d->sbdma_dscrtable); for (;;) { /* @@ -1501,7 +1506,7 @@ static int sbmac_initctx(struct sbmac_softc *s) } -static void sbdma_uninitctx(struct sbmacdma_s *d) +static void sbdma_uninitctx(struct sbmacdma *d) { if (d->sbdma_dscrtable_unaligned) { kfree(d->sbdma_dscrtable_unaligned); @@ -1537,7 +1542,7 @@ static void sbmac_uninitctx(struct sbmac_softc *sc) static void sbmac_channel_start(struct sbmac_softc *s) { uint64_t reg; - volatile void __iomem *port; + void __iomem *port; uint64_t cfg,fifo,framecfg; int idx, th_value; @@ -1800,10 +1805,10 @@ static void sbmac_channel_stop(struct sbmac_softc *s) * Return value: * old state ********************************************************************* */ -static sbmac_state_t sbmac_set_channel_state(struct sbmac_softc *sc, - sbmac_state_t state) +static enum sbmac_state sbmac_set_channel_state(struct sbmac_softc *sc, + enum sbmac_state state) { - sbmac_state_t oldstate = sc->sbm_state; + enum sbmac_state oldstate = sc->sbm_state; /* * If same as previous state, return @@ -1938,14 +1943,14 @@ static uint64_t sbmac_addr2reg(unsigned char *ptr) * * Input parameters: * s - sbmac structure - * speed - speed to set MAC to (see sbmac_speed_t enum) + * speed - speed to set MAC to (see enum sbmac_speed) * * Return value: * 1 if successful * 0 indicates invalid parameters ********************************************************************* */ -static int sbmac_set_speed(struct sbmac_softc *s,sbmac_speed_t speed) +static int sbmac_set_speed(struct sbmac_softc *s, enum sbmac_speed speed) { uint64_t cfg; uint64_t framecfg; @@ -2027,15 +2032,16 @@ static int sbmac_set_speed(struct sbmac_softc *s,sbmac_speed_t speed) * * Input parameters: * s - sbmac structure - * duplex - duplex setting (see sbmac_duplex_t) - * fc - flow control setting (see sbmac_fc_t) + * duplex - duplex setting (see enum sbmac_duplex) + * fc - flow control setting (see enum sbmac_fc) * * Return value: * 1 if ok * 0 if an invalid parameter combination was specified ********************************************************************* */ -static int sbmac_set_duplex(struct sbmac_softc *s,sbmac_duplex_t duplex,sbmac_fc_t fc) +static int sbmac_set_duplex(struct sbmac_softc *s, enum sbmac_duplex duplex, + enum sbmac_fc fc) { uint64_t cfg; @@ -2228,7 +2234,7 @@ static int sbmac_start_tx(struct sk_buff *skb, struct net_device *dev) static void sbmac_setmulti(struct sbmac_softc *sc) { uint64_t reg; - volatile void __iomem *port; + void __iomem *port; int idx; struct dev_mc_list *mclist; struct net_device *dev = sc->sbm_dev; 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