diff options
| -rw-r--r-- | Documentation/networking/gianfar.txt | 72 | ||||
| -rw-r--r-- | drivers/net/Makefile | 5 | ||||
| -rw-r--r-- | drivers/net/gianfar.c | 231 | ||||
| -rw-r--r-- | drivers/net/gianfar.h | 69 | ||||
| -rw-r--r-- | drivers/net/gianfar_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/gianfar_mii.h | 1 | ||||
| -rw-r--r-- | drivers/net/gianfar_sysfs.c | 311 |
7 files changed, 579 insertions, 112 deletions
diff --git a/Documentation/networking/gianfar.txt b/Documentation/networking/gianfar.txt new file mode 100644 index 0000000..ad474ea --- /dev/null +++ b/Documentation/networking/gianfar.txt @@ -0,0 +1,72 @@ +The Gianfar Ethernet Driver +Sysfs File description + +Author: Andy Fleming <afleming@freescale.com> +Updated: 2005-07-28 + +SYSFS + +Several of the features of the gianfar driver are controlled +through sysfs files. These are: + +bd_stash: +To stash RX Buffer Descriptors in the L2, echo 'on' or '1' to +bd_stash, echo 'off' or '0' to disable + +rx_stash_len: +To stash the first n bytes of the packet in L2, echo the number +of bytes to buf_stash_len. echo 0 to disable. + +WARNING: You could really screw these up if you set them too low or high! +fifo_threshold: +To change the number of bytes the controller needs in the +fifo before it starts transmission, echo the number of bytes to +fifo_thresh. Range should be 0-511. + +fifo_starve: +When the FIFO has less than this many bytes during a transmit, it +enters starve mode, and increases the priority of TX memory +transactions. To change, echo the number of bytes to +fifo_starve. Range should be 0-511. + +fifo_starve_off: +Once in starve mode, the FIFO remains there until it has this +many bytes. To change, echo the number of bytes to +fifo_starve_off. Range should be 0-511. + +CHECKSUM OFFLOADING + +The eTSEC controller (first included in parts from late 2005 like +the 8548) has the ability to perform TCP, UDP, and IP checksums +in hardware. The Linux kernel only offloads the TCP and UDP +checksums (and always performs the pseudo header checksums), so +the driver only supports checksumming for TCP/IP and UDP/IP +packets. Use ethtool to enable or disable this feature for RX +and TX. + +VLAN + +In order to use VLAN, please consult Linux documentation on +configuring VLANs. The gianfar driver supports hardware insertion and +extraction of VLAN headers, but not filtering. Filtering will be +done by the kernel. + +MULTICASTING + +The gianfar driver supports using the group hash table on the +TSEC (and the extended hash table on the eTSEC) for multicast +filtering. On the eTSEC, the exact-match MAC registers are used +before the hash tables. See Linux documentation on how to join +multicast groups. + +PADDING + +The gianfar driver supports padding received frames with 2 bytes +to align the IP header to a 16-byte boundary, when supported by +hardware. + +ETHTOOL + +The gianfar driver supports the use of ethtool for many +configuration options. You must run ethtool only on currently +open interfaces. See ethtool documentation for details. diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 27822a2..5056814 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -13,7 +13,10 @@ obj-$(CONFIG_CHELSIO_T1) += chelsio/ obj-$(CONFIG_BONDING) += bonding/ obj-$(CONFIG_GIANFAR) += gianfar_driver.o -gianfar_driver-objs := gianfar.o gianfar_ethtool.o gianfar_mii.o +gianfar_driver-objs := gianfar.o \ + gianfar_ethtool.o \ + gianfar_mii.o \ + gianfar_sysfs.o # # link order important here diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 0f030b7..146f951 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -2,7 +2,8 @@ * drivers/net/gianfar.c * * Gianfar Ethernet Driver - * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560 + * This driver is designed for the non-CPM ethernet controllers + * on the 85xx and 83xx family of integrated processors * Based on 8260_io/fcc_enet.c * * Author: Andy Fleming @@ -22,8 +23,6 @@ * B-V +1.62 * * Theory of operation - * This driver is designed for the non-CPM ethernet controllers - * on the 85xx and 83xx family of integrated processors * * The driver is initialized through platform_device. Structures which * define the configuration needed by the board are defined in a @@ -110,7 +109,7 @@ #endif const char gfar_driver_name[] = "Gianfar Ethernet"; -const char gfar_driver_version[] = "1.2"; +const char gfar_driver_version[] = "1.3"; static int gfar_enet_open(struct net_device *dev); static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev); @@ -139,6 +138,10 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int l static void gfar_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); static void gfar_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid); +void gfar_halt(struct net_device *dev); +void gfar_start(struct net_device *dev); +static void gfar_clear_exact_match(struct net_device *dev); +static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr); extern struct ethtool_ops gfar_ethtool_ops; @@ -146,12 +149,10 @@ MODULE_AUTHOR("Freescale Semiconductor, Inc"); MODULE_DESCRIPTION("Gianfar Ethernet Driver"); MODULE_LICENSE("GPL"); -int gfar_uses_fcb(struct gfar_private *priv) +/* Returns 1 if incoming frames use an FCB */ +static inline int gfar_uses_fcb(struct gfar_private *priv) { - if (priv->vlan_enable || priv->rx_csum_enable) - return 1; - else - return 0; + return (priv->vlan_enable || priv->rx_csum_enable); } /* Set up the ethernet device structure, private data, @@ -320,15 +321,10 @@ static int gfar_probe(struct platform_device *pdev) else priv->padding = 0; - dev->hard_header_len += priv->padding; - if (dev->features & NETIF_F_IP_CSUM) dev->hard_header_len += GMAC_FCB_LEN; priv->rx_buffer_size = DEFAULT_RX_BUFFER_SIZE; -#ifdef CONFIG_GFAR_BUFSTASH - priv->rx_stash_size = STASH_LENGTH; -#endif priv->tx_ring_size = DEFAULT_TX_RING_SIZE; priv->rx_ring_size = DEFAULT_RX_RING_SIZE; @@ -350,6 +346,9 @@ static int gfar_probe(struct platform_device *pdev) goto register_fail; } + /* Create all the sysfs files */ + gfar_init_sysfs(dev); + /* Print out the device info */ printk(KERN_INFO DEVICE_NAME, dev->name); for (idx = 0; idx < 6; idx++) @@ -357,8 +356,7 @@ static int gfar_probe(struct platform_device *pdev) printk("\n"); /* Even more device info helps when determining which kernel */ - /* provided which set of benchmarks. Since this is global for all */ - /* devices, we only print it once */ + /* provided which set of benchmarks. */ #ifdef CONFIG_GFAR_NAPI printk(KERN_INFO "%s: Running with NAPI enabled\n", dev->name); #else @@ -463,19 +461,9 @@ static void init_registers(struct net_device *dev) /* Initialize the max receive buffer length */ gfar_write(&priv->regs->mrblr, priv->rx_buffer_size); -#ifdef CONFIG_GFAR_BUFSTASH - /* If we are stashing buffers, we need to set the - * extraction length to the size of the buffer */ - gfar_write(&priv->regs->attreli, priv->rx_stash_size << 16); -#endif - /* Initialize the Minimum Frame Length Register */ gfar_write(&priv->regs->minflr, MINFLR_INIT_SETTINGS); - /* Setup Attributes so that snooping is on for rx */ - gfar_write(&priv->regs->attr, ATTR_INIT_SETTINGS); - gfar_write(&priv->regs->attreli, ATTRELI_INIT_SETTINGS); - /* Assign the TBI an address which won't conflict with the PHYs */ gfar_write(&priv->regs->tbipa, TBIPA_VALUE); } @@ -577,8 +565,7 @@ static void free_skb_resources(struct gfar_private *priv) for (i = 0; i < priv->rx_ring_size; i++) { if (priv->rx_skbuff[i]) { dma_unmap_single(NULL, rxbdp->bufPtr, - priv->rx_buffer_size - + RXBUF_ALIGNMENT, + priv->rx_buffer_size, DMA_FROM_DEVICE); dev_kfree_skb_any(priv->rx_skbuff[i]); @@ -636,6 +623,7 @@ int startup_gfar(struct net_device *dev) struct gfar *regs = priv->regs; int err = 0; u32 rctrl = 0; + u32 attrs = 0; gfar_write(®s->imask, IMASK_INIT_CLEAR); @@ -795,18 +783,50 @@ int startup_gfar(struct net_device *dev) if (priv->rx_csum_enable) rctrl |= RCTRL_CHECKSUMMING; - if (priv->extended_hash) + if (priv->extended_hash) { rctrl |= RCTRL_EXTHASH; + gfar_clear_exact_match(dev); + rctrl |= RCTRL_EMEN; + } + if (priv->vlan_enable) rctrl |= RCTRL_VLAN; + if (priv->padding) { + rctrl &= ~RCTRL_PAL_MASK; + rctrl |= RCTRL_PADDING(priv->padding); + } + /* Init rctrl based on our settings */ gfar_write(&priv->regs->rctrl, rctrl); if (dev->features & NETIF_F_IP_CSUM) gfar_write(&priv->regs->tctrl, TCTRL_INIT_CSUM); + /* Set the extraction length and index */ + attrs = ATTRELI_EL(priv->rx_stash_size) | + ATTRELI_EI(priv->rx_stash_index); + + gfar_write(&priv->regs->attreli, attrs); + + /* Start with defaults, and add stashing or locking + * depending on the approprate variables */ + attrs = ATTR_INIT_SETTINGS; + + if (priv->bd_stash_en) + attrs |= ATTR_BDSTASH; + + if (priv->rx_stash_size != 0) + attrs |= ATTR_BUFSTASH; + + gfar_write(&priv->regs->attr, attrs); + + gfar_write(&priv->regs->fifo_tx_thr, priv->fifo_threshold); + gfar_write(&priv->regs->fifo_tx_starve, priv->fifo_starve); + gfar_write(&priv->regs->fifo_tx_starve_shutoff, priv->fifo_starve_off); + + /* Start the controller */ gfar_start(dev); return 0; @@ -851,34 +871,32 @@ static int gfar_enet_open(struct net_device *dev) return err; } -static struct txfcb *gfar_add_fcb(struct sk_buff *skb, struct txbd8 *bdp) +static inline struct txfcb *gfar_add_fcb(struct sk_buff *skb, struct txbd8 *bdp) { struct txfcb *fcb = (struct txfcb *)skb_push (skb, GMAC_FCB_LEN); memset(fcb, 0, GMAC_FCB_LEN); - /* Flag the bd so the controller looks for the FCB */ - bdp->status |= TXBD_TOE; - return fcb; } static inline void gfar_tx_checksum(struct sk_buff *skb, struct txfcb *fcb) { - int len; + u8 flags = 0; /* If we're here, it's a IP packet with a TCP or UDP * payload. We set it to checksum, using a pseudo-header * we provide */ - fcb->ip = 1; - fcb->tup = 1; - fcb->ctu = 1; - fcb->nph = 1; + flags = TXFCB_DEFAULT; - /* Notify the controller what the protocol is */ - if (skb->nh.iph->protocol == IPPROTO_UDP) - fcb->udp = 1; + /* Tell the controller what the protocol is */ + /* And provide the already calculated phcs */ + if (skb->nh.iph->protocol == IPPROTO_UDP) { + flags |= TXFCB_UDP; + fcb->phcs = skb->h.uh->check; + } else + fcb->phcs = skb->h.th->check; /* l3os is the distance between the start of the * frame (skb->data) and the start of the IP hdr. @@ -887,17 +905,12 @@ static inline void gfar_tx_checksum(struct sk_buff *skb, struct txfcb *fcb) fcb->l3os = (u16)(skb->nh.raw - skb->data - GMAC_FCB_LEN); fcb->l4os = (u16)(skb->h.raw - skb->nh.raw); - len = skb->nh.iph->tot_len - fcb->l4os; - - /* Provide the pseudoheader csum */ - fcb->phcs = ~csum_tcpudp_magic(skb->nh.iph->saddr, - skb->nh.iph->daddr, len, - skb->nh.iph->protocol, 0); + fcb->flags = flags; } -void gfar_tx_vlan(struct sk_buff *skb, struct txfcb *fcb) +void inline gfar_tx_vlan(struct sk_buff *skb, struct txfcb *fcb) { - fcb->vln = 1; + fcb->flags |= TXFCB_VLN; fcb->vlctl = vlan_tx_tag_get(skb); } @@ -908,6 +921,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev) struct gfar_private *priv = netdev_priv(dev); struct txfcb *fcb = NULL; struct txbd8 *txbdp; + u16 status; /* Update transmit stats */ priv->stats.tx_bytes += skb->len; @@ -919,19 +933,22 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev) txbdp = priv->cur_tx; /* Clear all but the WRAP status flags */ - txbdp->status &= TXBD_WRAP; + status = txbdp->status & TXBD_WRAP; /* Set up checksumming */ - if ((dev->features & NETIF_F_IP_CSUM) - && (CHECKSUM_HW == skb->ip_summed)) { + if (likely((dev->features & NETIF_F_IP_CSUM) + && (CHECKSUM_HW == skb->ip_summed))) { fcb = gfar_add_fcb(skb, txbdp); + status |= TXBD_TOE; gfar_tx_checksum(skb, fcb); } if (priv->vlan_enable && unlikely(priv->vlgrp && vlan_tx_tag_present(skb))) { - if (NULL == fcb) + if (unlikely(NULL == fcb)) { fcb = gfar_add_fcb(skb, txbdp); + status |= TXBD_TOE; + } gfar_tx_vlan(skb, fcb); } @@ -949,14 +966,16 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev) (priv->skb_curtx + 1) & TX_RING_MOD_MASK(priv->tx_ring_size); /* Flag the BD as interrupt-causing */ - txbdp->status |= TXBD_INTERRUPT; + status |= TXBD_INTERRUPT; /* Flag the BD as ready to go, last in frame, and */ /* in need of CRC */ - txbdp->status |= (TXBD_READY | TXBD_LAST | TXBD_CRC); + status |= (TXBD_READY | TXBD_LAST | TXBD_CRC); dev->trans_start = jiffies; + txbdp->status = status; + /* If this was the last BD in the ring, the next one */ /* is at the beginning of the ring */ if (txbdp->status & TXBD_WRAP) @@ -1010,21 +1029,7 @@ static struct net_device_stats * gfar_get_stats(struct net_device *dev) /* Changes the mac address if the controller is not running. */ int gfar_set_mac_address(struct net_device *dev) { - struct gfar_private *priv = netdev_priv(dev); - int i; - char tmpbuf[MAC_ADDR_LEN]; - u32 tempval; - - /* Now copy it into the mac registers backwards, cuz */ - /* little endian is silly */ - for (i = 0; i < MAC_ADDR_LEN; i++) - tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->dev_addr[i]; - - gfar_write(&priv->regs->macstnaddr1, *((u32 *) (tmpbuf))); - - tempval = *((u32 *) (tmpbuf + 4)); - - gfar_write(&priv->regs->macstnaddr2, tempval); + gfar_set_mac_for_addr(dev, 0, dev->dev_addr); return 0; } @@ -1110,7 +1115,7 @@ static int gfar_change_mtu(struct net_device *dev, int new_mtu) INCREMENTAL_BUFFER_SIZE; /* Only stop and start the controller if it isn't already - * stopped */ + * stopped, and we changed something */ if ((oldsize != tempsize) && (dev->flags & IFF_UP)) stop_gfar(dev); @@ -1220,6 +1225,7 @@ static irqreturn_t gfar_transmit(int irq, void *dev_id, struct pt_regs *regs) struct sk_buff * gfar_new_skb(struct net_device *dev, struct rxbd8 *bdp) { + unsigned int alignamount; struct gfar_private *priv = netdev_priv(dev); struct sk_buff *skb = NULL; unsigned int timeout = SKB_ALLOC_TIMEOUT; @@ -1231,18 +1237,18 @@ struct sk_buff * gfar_new_skb(struct net_device *dev, struct rxbd8 *bdp) if (NULL == skb) return NULL; + alignamount = RXBUF_ALIGNMENT - + (((unsigned) skb->data) & (RXBUF_ALIGNMENT - 1)); + /* We need the data buffer to be aligned properly. We will reserve * as many bytes as needed to align the data properly */ - skb_reserve(skb, - RXBUF_ALIGNMENT - - (((unsigned) skb->data) & (RXBUF_ALIGNMENT - 1))); + skb_reserve(skb, alignamount); skb->dev = dev; bdp->bufPtr = dma_map_single(NULL, skb->data, - priv->rx_buffer_size + RXBUF_ALIGNMENT, - DMA_FROM_DEVICE); + priv->rx_buffer_size, DMA_FROM_DEVICE); bdp->length = 0; @@ -1350,7 +1356,7 @@ static inline void gfar_rx_checksum(struct sk_buff *skb, struct rxfcb *fcb) /* If valid headers were found, and valid sums * were verified, then we tell the kernel that no * checksumming is necessary. Otherwise, it is */ - if (fcb->cip && !fcb->eip && fcb->ctu && !fcb->etu) + if ((fcb->flags & RXFCB_CSUM_MASK) == (RXFCB_CIP | RXFCB_CTU)) skb->ip_summed = CHECKSUM_UNNECESSARY; else skb->ip_summed = CHECKSUM_NONE; @@ -1401,7 +1407,7 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, skb->protocol = eth_type_trans(skb, dev); /* Send the packet up the stack */ - if (unlikely(priv->vlgrp && fcb->vln)) + if (unlikely(priv->vlgrp && (fcb->flags & RXFCB_VLN))) ret = gfar_rx_vlan(skb, priv->vlgrp, fcb->vlctl); else ret = RECEIVE(skb); @@ -1620,6 +1626,7 @@ static void adjust_link(struct net_device *dev) spin_lock_irqsave(&priv->lock, flags); if (phydev->link) { u32 tempval = gfar_read(®s->maccfg2); + u32 ecntrl = gfar_read(®s->ecntrl); /* Now we make sure that we can be in full duplex mode. * If not, we operate in half-duplex mode. */ @@ -1644,6 +1651,13 @@ static void adjust_link(struct net_device *dev) case 10: tempval = ((tempval & ~(MACCFG2_IF)) | MACCFG2_MII); + + /* Reduced mode distinguishes + * between 10 and 100 */ + if (phydev->speed == SPEED_100) + ecntrl |= ECNTRL_R100; + else + ecntrl &= ~(ECNTRL_R100); break; default: if (netif_msg_link(priv)) @@ -1657,6 +1671,7 @@ static void adjust_link(struct net_device *dev) } gfar_write(®s->maccfg2, tempval); + gfar_write(®s->ecntrl, ecntrl); if (!priv->oldlink) { new_state = 1; @@ -1721,6 +1736,9 @@ static void gfar_set_multi(struct net_device *dev) gfar_write(®s->gaddr6, 0xffffffff); gfar_write(®s->gaddr7, 0xffffffff); } else { + int em_num; + int idx; + /* zero out the hash */ gfar_write(®s->igaddr0, 0x0); gfar_write(®s->igaddr1, 0x0); @@ -1739,18 +1757,47 @@ static void gfar_set_multi(struct net_device *dev) gfar_write(®s->gaddr6, 0x0); gfar_write(®s->gaddr7, 0x0); + /* If we have extended hash tables, we need to + * clear the exact match registers to prepare for + * setting them */ + if (priv->extended_hash) { + em_num = GFAR_EM_NUM + 1; + gfar_clear_exact_match(dev); + idx = 1; + } else { + idx = 0; + em_num = 0; + } + if(dev->mc_count == 0) return; /* Parse the list, and set the appropriate bits */ for(mc_ptr = dev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) { - gfar_set_hash_for_addr(dev, mc_ptr->dmi_addr); + if (idx < em_num) { + gfar_set_mac_for_addr(dev, idx, + mc_ptr->dmi_addr); + idx++; + } else + gfar_set_hash_for_addr(dev, mc_ptr->dmi_addr); } } return; } + +/* Clears each of the exact match registers to zero, so they + * don't interfere with normal reception */ +static void gfar_clear_exact_match(struct net_device *dev) +{ + int idx; + u8 zero_arr[MAC_ADDR_LEN] = {0,0,0,0,0,0}; + + for(idx = 1;idx < GFAR_EM_NUM + 1;idx++) + gfar_set_mac_for_addr(dev, idx, (u8 *)zero_arr); +} + /* Set the appropriate hash bit for the given addr */ /* The algorithm works like so: * 1) Take the Destination Address (ie the multicast address), and @@ -1781,6 +1828,32 @@ static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr) return; } + +/* There are multiple MAC Address register pairs on some controllers + * This function sets the numth pair to a given address + */ +static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr) +{ + struct gfar_private *priv = netdev_priv(dev); + int idx; + char tmpbuf[MAC_ADDR_LEN]; + u32 tempval; + u32 *macptr = &priv->regs->macstnaddr1; + + macptr += num*2; + + /* Now copy it into the mac registers backwards, cuz */ + /* little endian is silly */ + for (idx = 0; idx < MAC_ADDR_LEN; idx++) + tmpbuf[MAC_ADDR_LEN - 1 - idx] = addr[idx]; + + gfar_write(macptr, *((u32 *) (tmpbuf))); + + tempval = *((u32 *) (tmpbuf + 4)); + + gfar_write(macptr+1, tempval); +} + /* GFAR error interrupt handler */ static irqreturn_t gfar_error(int irq, void *dev_id, struct pt_regs *regs) { diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 5065ba8..94a91da 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -90,12 +90,26 @@ extern const char gfar_driver_version[]; #define GFAR_RX_MAX_RING_SIZE 256 #define GFAR_TX_MAX_RING_SIZE 256 +#define GFAR_MAX_FIFO_THRESHOLD 511 +#define GFAR_MAX_FIFO_STARVE 511 +#define GFAR_MAX_FIFO_STARVE_OFF 511 + #define DEFAULT_RX_BUFFER_SIZE 1536 #define TX_RING_MOD_MASK(size) (size-1) #define RX_RING_MOD_MASK(size) (size-1) #define JUMBO_BUFFER_SIZE 9728 #define JUMBO_FRAME_SIZE 9600 +#define DEFAULT_FIFO_TX_THR 0x100 +#define DEFAULT_FIFO_TX_STARVE 0x40 +#define DEFAULT_FIFO_TX_STARVE_OFF 0x80 +#define DEFAULT_BD_STASH 1 +#define DEFAULT_STASH_LENGTH 64 +#define DEFAULT_STASH_INDEX 0 + +/* The number of Exact Match registers */ +#define GFAR_EM_NUM 15 + /* Latency of interface clock in nanoseconds */ /* Interface clock latency , in this case, means the * time described by a value of 1 in the interrupt @@ -112,11 +126,11 @@ extern const char gfar_driver_version[]; #define DEFAULT_TX_COALESCE 1 #define DEFAULT_TXCOUNT 16 -#define DEFAULT_TXTIME 400 +#define DEFAULT_TXTIME 4 #define DEFAULT_RX_COALESCE 1 #define DEFAULT_RXCOUNT 16 -#define DEFAULT_RXTIME 400 +#define DEFAULT_RXTIME 4 #define TBIPA_VALUE 0x1f #define MIIMCFG_INIT_VALUE 0x00000007 @@ -147,6 +161,7 @@ extern const char gfar_driver_version[]; #define ECNTRL_INIT_SETTINGS 0x00001000 #define ECNTRL_TBI_MODE 0x00000020 +#define ECNTRL_R100 0x00000008 #define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE @@ -181,10 +196,12 @@ extern const char gfar_driver_version[]; #define RCTRL_PRSDEP_MASK 0x000000c0 #define RCTRL_PRSDEP_INIT 0x000000c0 #define RCTRL_PROM 0x00000008 +#define RCTRL_EMEN 0x00000002 #define RCTRL_CHECKSUMMING (RCTRL_IPCSEN \ | RCTRL_TUCSEN | RCTRL_PRSDEP_INIT) #define RCTRL_EXTHASH (RCTRL_GHTX) #define RCTRL_VLAN (RCTRL_PRSDEP_INIT) +#define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK) #define RSTAT_CLEAR_RHALT 0x00800000 @@ -251,28 +268,26 @@ extern const char gfar_driver_version[]; IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \ | IMASK_PERR) +/* Fifo management */ +#define FIFO_TX_THR_MASK 0x01ff +#define FIFO_TX_STARVE_MASK 0x01ff +#define FIFO_TX_STARVE_OFF_MASK 0x01ff /* Attribute fields */ /* This enables rx snooping for buffers and descriptors */ -#ifdef CONFIG_GFAR_BDSTASH #define ATTR_BDSTASH 0x00000800 -#else -#define ATTR_BDSTASH 0x00000000 -#endif -#ifdef CONFIG_GFAR_BUFSTASH #define ATTR_BUFSTASH 0x00004000 -#define STASH_LENGTH 64 -#else -#define ATTR_BUFSTASH 0x00000000 -#endif #define ATTR_SNOOPING 0x000000c0 -#define ATTR_INIT_SETTINGS (ATTR_SNOOPING \ - | ATTR_BDSTASH | ATTR_BUFSTASH) +#define ATTR_INIT_SETTINGS ATTR_SNOOPING #define ATTRELI_INIT_SETTINGS 0x0 +#define ATTRELI_EL_MASK 0x3fff0000 +#define ATTRELI_EL(x) (x << 16) +#define ATTRELI_EI_MASK 0x00003fff +#define ATTRELI_EI(x) (x) /* TxBD status field bits */ @@ -328,6 +343,7 @@ extern const char gfar_driver_version[]; #define RXFCB_CTU 0x0400 #define RXFCB_EIP 0x0200 #define RXFCB_ETU 0x0100 +#define RXFCB_CSUM_MASK 0x0f00 #define RXFCB_PERR_MASK 0x000c #define RXFCB_PERR_BADL3 0x0008 @@ -339,14 +355,7 @@ struct txbd8 }; struct txfcb { - u8 vln:1, - ip:1, - ip6:1, - tup:1, - udp:1, - cip:1, - ctu:1, - nph:1; + u8 flags; u8 reserved; u8 l4os; /* Level 4 Header Offset */ u8 l3os; /* Level 3 Header Offset */ @@ -362,14 +371,7 @@ struct rxbd8 }; struct rxfcb { - u16 vln:1, - ip:1, - ip6:1, - tup:1, - cip:1, - ctu:1, - eip:1, - etu:1; + u16 flags; u8 rq; /* Receive Queue index */ u8 pro; /* Layer 4 Protocol */ u16 reserved; @@ -688,12 +690,17 @@ struct gfar_private { spinlock_t lock; unsigned int rx_buffer_size; unsigned int rx_stash_size; + unsigned int rx_stash_index; unsigned int tx_ring_size; unsigned int rx_ring_size; + unsigned int fifo_threshold; + unsigned int fifo_starve; + unsigned int fifo_starve_off; unsigned char vlan_enable:1, rx_csum_enable:1, - extended_hash:1; + extended_hash:1, + bd_stash_en:1; unsigned short padding; struct vlan_group *vlgrp; /* Info structure initialized by board setup code */ @@ -731,6 +738,6 @@ extern void stop_gfar(struct net_device *dev); extern void gfar_halt(struct net_device *dev); extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, int enable, u32 regnum, u32 read); -void gfar_setup_stashing(struct net_device *dev); +void gfar_init_sysfs(struct net_device *dev); #endif /* __GIANFAR_H */ diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c index cfa3cd7..765e810 100644 --- a/drivers/net/gianfar_ethtool.c +++ b/drivers/net/gianfar_ethtool.c @@ -125,7 +125,7 @@ static char stat_gstrings[][ETH_GSTRING_LEN] = { static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) { struct gfar_private *priv = netdev_priv(dev); - + if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); else diff --git a/drivers/net/gianfar_mii.h b/drivers/net/gianfar_mii.h index e85eb21..d527cf2 100644 --- a/drivers/net/gianfar_mii.h +++ b/drivers/net/gianfar_mii.h @@ -24,6 +24,7 @@ #define MII_READ_COMMAND 0x00000001 #define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \ + | SUPPORTED_10baseT_Full \ | SUPPORTED_100baseT_Half \ | SUPPORTED_100baseT_Full \ | SUPPORTED_Autoneg \ diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c new file mode 100644 index 0000000..10d34cb --- /dev/null +++ b/drivers/net/gianfar_sysfs.c @@ -0,0 +1,311 @@ +/* + * drivers/net/gianfar_sysfs.c + * + * Gianfar Ethernet Driver + * This driver is designed for the non-CPM ethernet controllers + * on the 85xx and 83xx family of integrated processors + * Based on 8260_io/fcc_enet.c + * + * Author: Andy Fleming + * Maintainer: Kumar Gala (kumar.gala@freescale.com) + * + * Copyright (c) 2002-2005 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Sysfs file creation and management + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/unistd.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/etherdevice.h> +#include <linux/spinlock.h> +#include <linux/mm.h> +#include <linux/device.h> + +#include <asm/uaccess.h> +#include <linux/module.h> +#include <linux/version.h> + +#include "gianfar.h" + +#define GFAR_ATTR(_name) \ +static ssize_t gfar_show_##_name(struct class_device *cdev, char *buf); \ +static ssize_t gfar_set_##_name(struct class_device *cdev, \ + const char *buf, size_t count); \ +static CLASS_DEVICE_ATTR(_name, 0644, gfar_show_##_name, gfar_set_##_name) + +#define GFAR_CREATE_FILE(_dev, _name) \ + class_device_create_file(&_dev->class_dev, &class_device_attr_##_name) + +GFAR_ATTR(bd_stash); +GFAR_ATTR(rx_stash_size); +GFAR_ATTR(rx_stash_index); +GFAR_ATTR(fifo_threshold); +GFAR_ATTR(fifo_starve); +GFAR_ATTR(fifo_starve_off); + +#define to_net_dev(cd) container_of(cd, struct net_device, class_dev) + +static ssize_t gfar_show_bd_stash(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%s\n", priv->bd_stash_en? "on" : "off"); +} + +static ssize_t gfar_set_bd_stash(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + int new_setting = 0; + u32 temp; + unsigned long flags; + + /* Find out the new setting */ + if (!strncmp("on", buf, count-1) || !strncmp("1", buf, count-1)) + new_setting = 1; + else if (!strncmp("off", buf, count-1) || !strncmp("0", buf, count-1)) + new_setting = 0; + else + return count; + + spin_lock_irqsave(&priv->lock, flags); + + /* Set the new stashing value */ + priv->bd_stash_en = new_setting; + + temp = gfar_read(&priv->regs->attr); + + if (new_setting) + temp |= ATTR_BDSTASH; + else + temp &= ~(ATTR_BDSTASH); + + gfar_write(&priv->regs->attr, temp); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + +static ssize_t gfar_show_rx_stash_size(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%d\n", priv->rx_stash_size); +} + +static ssize_t gfar_set_rx_stash_size(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned int length = simple_strtoul(buf, NULL, 0); + u32 temp; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (length > priv->rx_buffer_size) + return count; + + if (length == priv->rx_stash_size) + return count; + + priv->rx_stash_size = length; + + temp = gfar_read(&priv->regs->attreli); + temp &= ~ATTRELI_EL_MASK; + temp |= ATTRELI_EL(length); + gfar_write(&priv->regs->attreli, temp); + + /* Turn stashing on/off as appropriate */ + temp = gfar_read(&priv->regs->attr); + + if (length) + temp |= ATTR_BUFSTASH; + else + temp &= ~(ATTR_BUFSTASH); + + gfar_write(&priv->regs->attr, temp); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + + +/* Stashing will only be enabled when rx_stash_size != 0 */ +static ssize_t gfar_show_rx_stash_index(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%d\n", priv->rx_stash_index); +} + +static ssize_t gfar_set_rx_stash_index(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned short index = simple_strtoul(buf, NULL, 0); + u32 temp; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (index > priv->rx_stash_size) + return count; + + if (index == priv->rx_stash_index) + return count; + + priv->rx_stash_index = index; + + temp = gfar_read(&priv->regs->attreli); + temp &= ~ATTRELI_EI_MASK; + temp |= ATTRELI_EI(index); + gfar_write(&priv->regs->attreli, flags); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + +static ssize_t gfar_show_fifo_threshold(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%d\n", priv->fifo_threshold); +} + +static ssize_t gfar_set_fifo_threshold(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned int length = simple_strtoul(buf, NULL, 0); + u32 temp; + unsigned long flags; + + if (length > GFAR_MAX_FIFO_THRESHOLD) + return count; + + spin_lock_irqsave(&priv->lock, flags); + + priv->fifo_threshold = length; + + temp = gfar_read(&priv->regs->fifo_tx_thr); + temp &= ~FIFO_TX_THR_MASK; + temp |= length; + gfar_write(&priv->regs->fifo_tx_thr, temp); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + +static ssize_t gfar_show_fifo_starve(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%d\n", priv->fifo_starve); +} + + +static ssize_t gfar_set_fifo_starve(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned int num = simple_strtoul(buf, NULL, 0); + u32 temp; + unsigned long flags; + + if (num > GFAR_MAX_FIFO_STARVE) + return count; + + spin_lock_irqsave(&priv->lock, flags); + + priv->fifo_starve = num; + + temp = gfar_read(&priv->regs->fifo_tx_starve); + temp &= ~FIFO_TX_STARVE_MASK; + temp |= num; + gfar_write(&priv->regs->fifo_tx_starve, temp); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + +static ssize_t gfar_show_fifo_starve_off(struct class_device *cdev, char *buf) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + + return sprintf(buf, "%d\n", priv->fifo_starve_off); +} + +static ssize_t gfar_set_fifo_starve_off(struct class_device *cdev, + const char *buf, size_t count) +{ + struct net_device *dev = to_net_dev(cdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned int num = simple_strtoul(buf, NULL, 0); + u32 temp; + unsigned long flags; + + if (num > GFAR_MAX_FIFO_STARVE_OFF) + return count; + + spin_lock_irqsave(&priv->lock, flags); + + priv->fifo_starve_off = num; + + temp = gfar_read(&priv->regs->fifo_tx_starve_shutoff); + temp &= ~FIFO_TX_STARVE_OFF_MASK; + temp |= num; + gfar_write(&priv->regs->fifo_tx_starve_shutoff, temp); + + spin_unlock_irqrestore(&priv->lock, flags); + + return count; +} + +void gfar_init_sysfs(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + + /* Initialize the default values */ + priv->rx_stash_size = DEFAULT_STASH_LENGTH; + priv->rx_stash_index = DEFAULT_STASH_INDEX; + priv->fifo_threshold = DEFAULT_FIFO_TX_THR; + priv->fifo_starve = DEFAULT_FIFO_TX_STARVE; + priv->fifo_starve_off = DEFAULT_FIFO_TX_STARVE_OFF; + priv->bd_stash_en = DEFAULT_BD_STASH; + + /* Create our sysfs files */ + GFAR_CREATE_FILE(dev, bd_stash); + GFAR_CREATE_FILE(dev, rx_stash_size); + GFAR_CREATE_FILE(dev, rx_stash_index); + GFAR_CREATE_FILE(dev, fifo_threshold); + GFAR_CREATE_FILE(dev, fifo_starve); + GFAR_CREATE_FILE(dev, fifo_starve_off); + +} |
