2 * drivers/net/ethernet/freescale/gianfar_ethtool.c
4 * Gianfar Ethernet Driver
5 * Ethtool support for Gianfar Enet
6 * Based on e1000 ethtool support
9 * Maintainer: Kumar Gala
10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
12 * Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc.
14 * This software may be used and distributed according to
15 * the terms of the GNU Public License, Version 2, incorporated herein
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21 #include <linux/kernel.h>
22 #include <linux/string.h>
23 #include <linux/errno.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/netdevice.h>
27 #include <linux/etherdevice.h>
28 #include <linux/net_tstamp.h>
29 #include <linux/skbuff.h>
30 #include <linux/spinlock.h>
35 #include <asm/uaccess.h>
36 #include <linux/module.h>
37 #include <linux/crc32.h>
38 #include <asm/types.h>
39 #include <linux/ethtool.h>
40 #include <linux/mii.h>
41 #include <linux/phy.h>
42 #include <linux/sort.h>
43 #include <linux/if_vlan.h>
47 #define GFAR_MAX_COAL_USECS 0xffff
48 #define GFAR_MAX_COAL_FRAMES 0xff
49 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
51 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
52 static int gfar_gcoalesce(struct net_device *dev,
53 struct ethtool_coalesce *cvals);
54 static int gfar_scoalesce(struct net_device *dev,
55 struct ethtool_coalesce *cvals);
56 static void gfar_gringparam(struct net_device *dev,
57 struct ethtool_ringparam *rvals);
58 static int gfar_sringparam(struct net_device *dev,
59 struct ethtool_ringparam *rvals);
60 static void gfar_gdrvinfo(struct net_device *dev,
61 struct ethtool_drvinfo *drvinfo);
63 static const char stat_gstrings[][ETH_GSTRING_LEN] = {
64 "rx-large-frame-errors",
65 "rx-short-frame-errors",
66 "rx-non-octet-errors",
71 "rx-truncated-frames",
75 "rx-skb-missing-errors",
78 "tx-rx-65-127-frames",
79 "tx-rx-128-255-frames",
80 "tx-rx-256-511-frames",
81 "tx-rx-512-1023-frames",
82 "tx-rx-1024-1518-frames",
83 "tx-rx-1519-1522-good-vlan",
87 "receive-multicast-packet",
88 "receive-broadcast-packet",
89 "rx-control-frame-packets",
90 "rx-pause-frame-packets",
93 "rx-frame-length-error",
95 "rx-carrier-sense-error",
96 "rx-undersize-packets",
97 "rx-oversize-packets",
98 "rx-fragmented-frames",
103 "tx-multicast-packets",
104 "tx-broadcast-packets",
105 "tx-pause-control-frames",
106 "tx-deferral-packets",
107 "tx-excessive-deferral-packets",
108 "tx-single-collision-packets",
109 "tx-multiple-collision-packets",
110 "tx-late-collision-packets",
111 "tx-excessive-collision-packets",
112 "tx-total-collision",
118 "tx-oversize-frames",
119 "tx-undersize-frames",
120 "tx-fragmented-frames",
123 /* Fill in a buffer with the strings which correspond to the
125 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
127 struct gfar_private *priv = netdev_priv(dev);
129 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
130 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
132 memcpy(buf, stat_gstrings,
133 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
136 /* Fill in an array of 64-bit statistics from various sources.
137 * This array will be appended to the end of the ethtool_stats
138 * structure, and returned to user space
140 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
144 struct gfar_private *priv = netdev_priv(dev);
145 struct gfar __iomem *regs = priv->gfargrp[0].regs;
146 atomic64_t *extra = (atomic64_t *)&priv->extra_stats;
148 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
149 buf[i] = atomic64_read(&extra[i]);
151 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
152 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon;
154 for (; i < GFAR_STATS_LEN; i++, rmon++)
155 buf[i] = (u64) gfar_read(rmon);
159 static int gfar_sset_count(struct net_device *dev, int sset)
161 struct gfar_private *priv = netdev_priv(dev);
165 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
166 return GFAR_STATS_LEN;
168 return GFAR_EXTRA_STATS_LEN;
174 /* Fills in the drvinfo structure with some basic info */
175 static void gfar_gdrvinfo(struct net_device *dev,
176 struct ethtool_drvinfo *drvinfo)
178 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
179 strlcpy(drvinfo->version, gfar_driver_version,
180 sizeof(drvinfo->version));
181 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
182 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info));
183 drvinfo->regdump_len = 0;
184 drvinfo->eedump_len = 0;
188 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
190 struct gfar_private *priv = netdev_priv(dev);
191 struct phy_device *phydev = priv->phydev;
196 return phy_ethtool_sset(phydev, cmd);
200 /* Return the current settings in the ethtool_cmd structure */
201 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
203 struct gfar_private *priv = netdev_priv(dev);
204 struct phy_device *phydev = priv->phydev;
205 struct gfar_priv_rx_q *rx_queue = NULL;
206 struct gfar_priv_tx_q *tx_queue = NULL;
210 tx_queue = priv->tx_queue[0];
211 rx_queue = priv->rx_queue[0];
213 /* etsec-1.7 and older versions have only one txic
214 * and rxic regs although they support multiple queues */
215 cmd->maxtxpkt = get_icft_value(tx_queue->txic);
216 cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
218 return phy_ethtool_gset(phydev, cmd);
221 /* Return the length of the register structure */
222 static int gfar_reglen(struct net_device *dev)
224 return sizeof (struct gfar);
227 /* Return a dump of the GFAR register space */
228 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,
232 struct gfar_private *priv = netdev_priv(dev);
233 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
234 u32 *buf = (u32 *) regbuf;
236 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
237 buf[i] = gfar_read(&theregs[i]);
240 /* Convert microseconds to ethernet clock ticks, which changes
241 * depending on what speed the controller is running at */
242 static unsigned int gfar_usecs2ticks(struct gfar_private *priv,
247 /* The timer is different, depending on the interface speed */
248 switch (priv->phydev->speed) {
250 count = GFAR_GBIT_TIME;
253 count = GFAR_100_TIME;
257 count = GFAR_10_TIME;
261 /* Make sure we return a number greater than 0
263 return (usecs * 1000 + count - 1) / count;
266 /* Convert ethernet clock ticks to microseconds */
267 static unsigned int gfar_ticks2usecs(struct gfar_private *priv,
272 /* The timer is different, depending on the interface speed */
273 switch (priv->phydev->speed) {
275 count = GFAR_GBIT_TIME;
278 count = GFAR_100_TIME;
282 count = GFAR_10_TIME;
286 /* Make sure we return a number greater than 0 */
287 /* if ticks is > 0 */
288 return (ticks * count) / 1000;
291 /* Get the coalescing parameters, and put them in the cvals
293 static int gfar_gcoalesce(struct net_device *dev,
294 struct ethtool_coalesce *cvals)
296 struct gfar_private *priv = netdev_priv(dev);
297 struct gfar_priv_rx_q *rx_queue = NULL;
298 struct gfar_priv_tx_q *tx_queue = NULL;
299 unsigned long rxtime;
300 unsigned long rxcount;
301 unsigned long txtime;
302 unsigned long txcount;
304 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
307 if (NULL == priv->phydev)
310 rx_queue = priv->rx_queue[0];
311 tx_queue = priv->tx_queue[0];
313 rxtime = get_ictt_value(rx_queue->rxic);
314 rxcount = get_icft_value(rx_queue->rxic);
315 txtime = get_ictt_value(tx_queue->txic);
316 txcount = get_icft_value(tx_queue->txic);
317 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
318 cvals->rx_max_coalesced_frames = rxcount;
320 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
321 cvals->tx_max_coalesced_frames = txcount;
323 cvals->use_adaptive_rx_coalesce = 0;
324 cvals->use_adaptive_tx_coalesce = 0;
326 cvals->pkt_rate_low = 0;
327 cvals->rx_coalesce_usecs_low = 0;
328 cvals->rx_max_coalesced_frames_low = 0;
329 cvals->tx_coalesce_usecs_low = 0;
330 cvals->tx_max_coalesced_frames_low = 0;
332 /* When the packet rate is below pkt_rate_high but above
333 * pkt_rate_low (both measured in packets per second) the
334 * normal {rx,tx}_* coalescing parameters are used.
337 /* When the packet rate is (measured in packets per second)
338 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
341 cvals->pkt_rate_high = 0;
342 cvals->rx_coalesce_usecs_high = 0;
343 cvals->rx_max_coalesced_frames_high = 0;
344 cvals->tx_coalesce_usecs_high = 0;
345 cvals->tx_max_coalesced_frames_high = 0;
347 /* How often to do adaptive coalescing packet rate sampling,
348 * measured in seconds. Must not be zero.
350 cvals->rate_sample_interval = 0;
355 /* Change the coalescing values.
356 * Both cvals->*_usecs and cvals->*_frames have to be > 0
357 * in order for coalescing to be active
359 static int gfar_scoalesce(struct net_device *dev,
360 struct ethtool_coalesce *cvals)
362 struct gfar_private *priv = netdev_priv(dev);
365 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
368 if (NULL == priv->phydev)
371 /* Check the bounds of the values */
372 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
373 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
374 GFAR_MAX_COAL_USECS);
378 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
379 netdev_info(dev, "Coalescing is limited to %d frames\n",
380 GFAR_MAX_COAL_FRAMES);
384 /* Check the bounds of the values */
385 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
386 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
387 GFAR_MAX_COAL_USECS);
391 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
392 netdev_info(dev, "Coalescing is limited to %d frames\n",
393 GFAR_MAX_COAL_FRAMES);
397 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
400 /* Set up rx coalescing */
401 if ((cvals->rx_coalesce_usecs == 0) ||
402 (cvals->rx_max_coalesced_frames == 0)) {
403 for (i = 0; i < priv->num_rx_queues; i++)
404 priv->rx_queue[i]->rxcoalescing = 0;
406 for (i = 0; i < priv->num_rx_queues; i++)
407 priv->rx_queue[i]->rxcoalescing = 1;
410 for (i = 0; i < priv->num_rx_queues; i++) {
411 priv->rx_queue[i]->rxic = mk_ic_value(
412 cvals->rx_max_coalesced_frames,
413 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
416 /* Set up tx coalescing */
417 if ((cvals->tx_coalesce_usecs == 0) ||
418 (cvals->tx_max_coalesced_frames == 0)) {
419 for (i = 0; i < priv->num_tx_queues; i++)
420 priv->tx_queue[i]->txcoalescing = 0;
422 for (i = 0; i < priv->num_tx_queues; i++)
423 priv->tx_queue[i]->txcoalescing = 1;
426 for (i = 0; i < priv->num_tx_queues; i++) {
427 priv->tx_queue[i]->txic = mk_ic_value(
428 cvals->tx_max_coalesced_frames,
429 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
432 if (dev->flags & IFF_UP) {
434 err = startup_gfar(dev);
436 gfar_mac_reset(priv);
439 clear_bit_unlock(GFAR_RESETTING, &priv->state);
444 /* Fills in rvals with the current ring parameters. Currently,
445 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
446 * jumbo are ignored by the driver */
447 static void gfar_gringparam(struct net_device *dev,
448 struct ethtool_ringparam *rvals)
450 struct gfar_private *priv = netdev_priv(dev);
451 struct gfar_priv_tx_q *tx_queue = NULL;
452 struct gfar_priv_rx_q *rx_queue = NULL;
454 tx_queue = priv->tx_queue[0];
455 rx_queue = priv->rx_queue[0];
457 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
458 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
459 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
460 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
462 /* Values changeable by the user. The valid values are
463 * in the range 1 to the "*_max_pending" counterpart above.
465 rvals->rx_pending = rx_queue->rx_ring_size;
466 rvals->rx_mini_pending = rx_queue->rx_ring_size;
467 rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
468 rvals->tx_pending = tx_queue->tx_ring_size;
471 /* Change the current ring parameters, stopping the controller if
472 * necessary so that we don't mess things up while we're in motion.
474 static int gfar_sringparam(struct net_device *dev,
475 struct ethtool_ringparam *rvals)
477 struct gfar_private *priv = netdev_priv(dev);
480 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
483 if (!is_power_of_2(rvals->rx_pending)) {
484 netdev_err(dev, "Ring sizes must be a power of 2\n");
488 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
491 if (!is_power_of_2(rvals->tx_pending)) {
492 netdev_err(dev, "Ring sizes must be a power of 2\n");
496 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
499 if (dev->flags & IFF_UP)
502 /* Change the sizes */
503 for (i = 0; i < priv->num_rx_queues; i++)
504 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
506 for (i = 0; i < priv->num_tx_queues; i++)
507 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
509 /* Rebuild the rings with the new size */
510 if (dev->flags & IFF_UP)
511 err = startup_gfar(dev);
513 clear_bit_unlock(GFAR_RESETTING, &priv->state);
518 static void gfar_gpauseparam(struct net_device *dev,
519 struct ethtool_pauseparam *epause)
521 struct gfar_private *priv = netdev_priv(dev);
523 epause->autoneg = !!priv->pause_aneg_en;
524 epause->rx_pause = !!priv->rx_pause_en;
525 epause->tx_pause = !!priv->tx_pause_en;
528 static int gfar_spauseparam(struct net_device *dev,
529 struct ethtool_pauseparam *epause)
531 struct gfar_private *priv = netdev_priv(dev);
532 struct phy_device *phydev = priv->phydev;
533 struct gfar __iomem *regs = priv->gfargrp[0].regs;
539 if (!(phydev->supported & SUPPORTED_Pause) ||
540 (!(phydev->supported & SUPPORTED_Asym_Pause) &&
541 (epause->rx_pause != epause->tx_pause)))
544 priv->rx_pause_en = priv->tx_pause_en = 0;
545 if (epause->rx_pause) {
546 priv->rx_pause_en = 1;
548 if (epause->tx_pause) {
549 priv->tx_pause_en = 1;
550 /* FLOW_CTRL_RX & TX */
551 newadv = ADVERTISED_Pause;
552 } else /* FLOW_CTLR_RX */
553 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
554 } else if (epause->tx_pause) {
555 priv->tx_pause_en = 1;
557 newadv = ADVERTISED_Asym_Pause;
562 priv->pause_aneg_en = 1;
564 priv->pause_aneg_en = 0;
566 oldadv = phydev->advertising &
567 (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
568 if (oldadv != newadv) {
569 phydev->advertising &=
570 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
571 phydev->advertising |= newadv;
573 /* inform link partner of our
574 * new flow ctrl settings
576 return phy_start_aneg(phydev);
578 if (!epause->autoneg) {
580 tempval = gfar_read(®s->maccfg1);
581 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
582 if (priv->tx_pause_en)
583 tempval |= MACCFG1_TX_FLOW;
584 if (priv->rx_pause_en)
585 tempval |= MACCFG1_RX_FLOW;
586 gfar_write(®s->maccfg1, tempval);
593 int gfar_set_features(struct net_device *dev, netdev_features_t features)
595 netdev_features_t changed = dev->features ^ features;
596 struct gfar_private *priv = netdev_priv(dev);
599 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
603 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
606 dev->features = features;
608 if (dev->flags & IFF_UP) {
609 /* Now we take down the rings to rebuild them */
611 err = startup_gfar(dev);
613 gfar_mac_reset(priv);
616 clear_bit_unlock(GFAR_RESETTING, &priv->state);
621 static uint32_t gfar_get_msglevel(struct net_device *dev)
623 struct gfar_private *priv = netdev_priv(dev);
625 return priv->msg_enable;
628 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
630 struct gfar_private *priv = netdev_priv(dev);
632 priv->msg_enable = data;
636 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
638 struct gfar_private *priv = netdev_priv(dev);
640 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
641 wol->supported = WAKE_MAGIC;
642 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
644 wol->supported = wol->wolopts = 0;
648 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
650 struct gfar_private *priv = netdev_priv(dev);
653 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
657 if (wol->wolopts & ~WAKE_MAGIC)
660 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
662 spin_lock_irqsave(&priv->bflock, flags);
663 priv->wol_en = !!device_may_wakeup(&dev->dev);
664 spin_unlock_irqrestore(&priv->bflock, flags);
670 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
672 u32 fcr = 0x0, fpr = FPR_FILER_MASK;
674 if (ethflow & RXH_L2DA) {
675 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
676 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
677 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
678 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
679 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
680 priv->cur_filer_idx = priv->cur_filer_idx - 1;
682 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
683 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
684 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
685 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
686 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
687 priv->cur_filer_idx = priv->cur_filer_idx - 1;
690 if (ethflow & RXH_VLAN) {
691 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
692 RQFCR_AND | RQFCR_HASHTBL_0;
693 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
694 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
695 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
696 priv->cur_filer_idx = priv->cur_filer_idx - 1;
699 if (ethflow & RXH_IP_SRC) {
700 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
701 RQFCR_AND | RQFCR_HASHTBL_0;
702 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
703 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
704 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
705 priv->cur_filer_idx = priv->cur_filer_idx - 1;
708 if (ethflow & (RXH_IP_DST)) {
709 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
710 RQFCR_AND | RQFCR_HASHTBL_0;
711 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
712 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
713 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
714 priv->cur_filer_idx = priv->cur_filer_idx - 1;
717 if (ethflow & RXH_L3_PROTO) {
718 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
719 RQFCR_AND | RQFCR_HASHTBL_0;
720 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
721 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
722 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
723 priv->cur_filer_idx = priv->cur_filer_idx - 1;
726 if (ethflow & RXH_L4_B_0_1) {
727 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
728 RQFCR_AND | RQFCR_HASHTBL_0;
729 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
730 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
731 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
732 priv->cur_filer_idx = priv->cur_filer_idx - 1;
735 if (ethflow & RXH_L4_B_2_3) {
736 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
737 RQFCR_AND | RQFCR_HASHTBL_0;
738 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
739 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
740 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
741 priv->cur_filer_idx = priv->cur_filer_idx - 1;
745 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
748 unsigned int last_rule_idx = priv->cur_filer_idx;
749 unsigned int cmp_rqfpr;
750 unsigned int *local_rqfpr;
751 unsigned int *local_rqfcr;
752 int i = 0x0, k = 0x0;
753 int j = MAX_FILER_IDX, l = 0x0;
756 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
758 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
760 if (!local_rqfpr || !local_rqfcr) {
767 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
770 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
773 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
776 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
779 netdev_err(priv->ndev,
780 "Right now this class is not supported\n");
785 for (i = 0; i < MAX_FILER_IDX + 1; i++) {
786 local_rqfpr[j] = priv->ftp_rqfpr[i];
787 local_rqfcr[j] = priv->ftp_rqfcr[i];
789 if ((priv->ftp_rqfcr[i] ==
790 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
791 (priv->ftp_rqfpr[i] == cmp_rqfpr))
795 if (i == MAX_FILER_IDX + 1) {
796 netdev_err(priv->ndev,
797 "No parse rule found, can't create hash rules\n");
802 /* If a match was found, then it begins the starting of a cluster rule
803 * if it was already programmed, we need to overwrite these rules
805 for (l = i+1; l < MAX_FILER_IDX; l++) {
806 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
807 !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
808 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
809 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
810 priv->ftp_rqfpr[l] = FPR_FILER_MASK;
811 gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
816 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
817 (priv->ftp_rqfcr[l] & RQFCR_AND))
820 local_rqfpr[j] = priv->ftp_rqfpr[l];
821 local_rqfcr[j] = priv->ftp_rqfcr[l];
826 priv->cur_filer_idx = l - 1;
830 ethflow_to_filer_rules(priv, ethflow);
832 /* Write back the popped out rules again */
833 for (k = j+1; k < MAX_FILER_IDX; k++) {
834 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
835 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
836 gfar_write_filer(priv, priv->cur_filer_idx,
837 local_rqfcr[k], local_rqfpr[k]);
838 if (!priv->cur_filer_idx)
840 priv->cur_filer_idx = priv->cur_filer_idx - 1;
849 static int gfar_set_hash_opts(struct gfar_private *priv,
850 struct ethtool_rxnfc *cmd)
852 /* write the filer rules here */
853 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
859 static int gfar_check_filer_hardware(struct gfar_private *priv)
861 struct gfar __iomem *regs = priv->gfargrp[0].regs;
864 /* Check if we are in FIFO mode */
865 i = gfar_read(®s->ecntrl);
867 if (i == ECNTRL_FIFM) {
868 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
869 i = gfar_read(®s->rctrl);
870 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
871 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
872 netdev_info(priv->ndev,
873 "Receive Queue Filtering enabled\n");
875 netdev_warn(priv->ndev,
876 "Receive Queue Filtering disabled\n");
880 /* Or in standard mode */
882 i = gfar_read(®s->rctrl);
883 i &= RCTRL_PRSDEP_MASK;
884 if (i == RCTRL_PRSDEP_MASK) {
885 netdev_info(priv->ndev,
886 "Receive Queue Filtering enabled\n");
888 netdev_warn(priv->ndev,
889 "Receive Queue Filtering disabled\n");
894 /* Sets the properties for arbitrary filer rule
895 * to the first 4 Layer 4 Bytes
897 gfar_write(®s->rbifx, 0xC0C1C2C3);
901 static int gfar_comp_asc(const void *a, const void *b)
903 return memcmp(a, b, 4);
906 static int gfar_comp_desc(const void *a, const void *b)
908 return -memcmp(a, b, 4);
911 static void gfar_swap(void *a, void *b, int size)
922 /* Write a mask to filer cache */
923 static void gfar_set_mask(u32 mask, struct filer_table *tab)
925 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
926 tab->fe[tab->index].prop = mask;
930 /* Sets parse bits (e.g. IP or TCP) */
931 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
933 gfar_set_mask(mask, tab);
934 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
936 tab->fe[tab->index].prop = value;
940 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
941 struct filer_table *tab)
943 gfar_set_mask(mask, tab);
944 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
945 tab->fe[tab->index].prop = value;
949 /* For setting a tuple of value and mask of type flag
951 * IP-Src = 10.0.0.0/255.0.0.0
952 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
954 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
955 * For a don't care mask it gives us a 0
957 * The check if don't care and the mask adjustment if mask=0 is done for VLAN
958 * and MAC stuff on an upper level (due to missing information on this level).
959 * For these guys we can discard them if they are value=0 and mask=0.
961 * Further the all masks are one-padded for better hardware efficiency.
963 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
964 struct filer_table *tab)
971 mask |= RQFCR_PID_PRI_MASK;
976 if (!~(mask | RQFCR_PID_L4P_MASK))
981 mask |= RQFCR_PID_L4P_MASK;
987 mask |= RQFCR_PID_VID_MASK;
993 if (!~(mask | RQFCR_PID_PORT_MASK))
998 mask |= RQFCR_PID_PORT_MASK;
1005 if (!(value | mask))
1007 mask |= RQFCR_PID_MAC_MASK;
1009 /* for all real 32bit masks */
1017 gfar_set_general_attribute(value, mask, flag, tab);
1020 /* Translates value and mask for UDP, TCP or SCTP */
1021 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
1022 struct ethtool_tcpip4_spec *mask,
1023 struct filer_table *tab)
1025 gfar_set_attribute(be32_to_cpu(value->ip4src),
1026 be32_to_cpu(mask->ip4src),
1027 RQFCR_PID_SIA, tab);
1028 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1029 be32_to_cpu(mask->ip4dst),
1030 RQFCR_PID_DIA, tab);
1031 gfar_set_attribute(be16_to_cpu(value->pdst),
1032 be16_to_cpu(mask->pdst),
1033 RQFCR_PID_DPT, tab);
1034 gfar_set_attribute(be16_to_cpu(value->psrc),
1035 be16_to_cpu(mask->psrc),
1036 RQFCR_PID_SPT, tab);
1037 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1040 /* Translates value and mask for RAW-IP4 */
1041 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
1042 struct ethtool_usrip4_spec *mask,
1043 struct filer_table *tab)
1045 gfar_set_attribute(be32_to_cpu(value->ip4src),
1046 be32_to_cpu(mask->ip4src),
1047 RQFCR_PID_SIA, tab);
1048 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1049 be32_to_cpu(mask->ip4dst),
1050 RQFCR_PID_DIA, tab);
1051 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1052 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1053 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),
1054 be32_to_cpu(mask->l4_4_bytes),
1055 RQFCR_PID_ARB, tab);
1059 /* Translates value and mask for ETHER spec */
1060 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1061 struct filer_table *tab)
1063 u32 upper_temp_mask = 0;
1064 u32 lower_temp_mask = 0;
1066 /* Source address */
1067 if (!is_broadcast_ether_addr(mask->h_source)) {
1068 if (is_zero_ether_addr(mask->h_source)) {
1069 upper_temp_mask = 0xFFFFFFFF;
1070 lower_temp_mask = 0xFFFFFFFF;
1072 upper_temp_mask = mask->h_source[0] << 16 |
1073 mask->h_source[1] << 8 |
1075 lower_temp_mask = mask->h_source[3] << 16 |
1076 mask->h_source[4] << 8 |
1080 gfar_set_attribute(value->h_source[0] << 16 |
1081 value->h_source[1] << 8 |
1083 upper_temp_mask, RQFCR_PID_SAH, tab);
1084 /* And the same for the lower part */
1085 gfar_set_attribute(value->h_source[3] << 16 |
1086 value->h_source[4] << 8 |
1088 lower_temp_mask, RQFCR_PID_SAL, tab);
1090 /* Destination address */
1091 if (!is_broadcast_ether_addr(mask->h_dest)) {
1092 /* Special for destination is limited broadcast */
1093 if ((is_broadcast_ether_addr(value->h_dest) &&
1094 is_zero_ether_addr(mask->h_dest))) {
1095 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1097 if (is_zero_ether_addr(mask->h_dest)) {
1098 upper_temp_mask = 0xFFFFFFFF;
1099 lower_temp_mask = 0xFFFFFFFF;
1101 upper_temp_mask = mask->h_dest[0] << 16 |
1102 mask->h_dest[1] << 8 |
1104 lower_temp_mask = mask->h_dest[3] << 16 |
1105 mask->h_dest[4] << 8 |
1110 gfar_set_attribute(value->h_dest[0] << 16 |
1111 value->h_dest[1] << 8 |
1113 upper_temp_mask, RQFCR_PID_DAH, tab);
1114 /* And the same for the lower part */
1115 gfar_set_attribute(value->h_dest[3] << 16 |
1116 value->h_dest[4] << 8 |
1118 lower_temp_mask, RQFCR_PID_DAL, tab);
1122 gfar_set_attribute(be16_to_cpu(value->h_proto),
1123 be16_to_cpu(mask->h_proto),
1124 RQFCR_PID_ETY, tab);
1127 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)
1129 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;
1132 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)
1134 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;
1137 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)
1139 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;
1142 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)
1144 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;
1147 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)
1149 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1153 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)
1155 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1159 /* Convert a rule to binary filter format of gianfar */
1160 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1161 struct filer_table *tab)
1163 u32 vlan = 0, vlan_mask = 0;
1164 u32 id = 0, id_mask = 0;
1165 u32 cfi = 0, cfi_mask = 0;
1166 u32 prio = 0, prio_mask = 0;
1167 u32 old_index = tab->index;
1169 /* Check if vlan is wanted */
1170 if ((rule->flow_type & FLOW_EXT) &&
1171 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {
1172 if (!rule->m_ext.vlan_tci)
1173 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);
1176 vlan_mask = RQFPR_VLN;
1178 /* Separate the fields */
1179 id = vlan_tci_vid(rule);
1180 id_mask = vlan_tci_vidm(rule);
1181 cfi = vlan_tci_cfi(rule);
1182 cfi_mask = vlan_tci_cfim(rule);
1183 prio = vlan_tci_prio(rule);
1184 prio_mask = vlan_tci_priom(rule);
1186 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1188 vlan_mask |= RQFPR_CFI;
1189 } else if (cfi != VLAN_TAG_PRESENT &&
1190 cfi_mask == VLAN_TAG_PRESENT) {
1191 vlan_mask |= RQFPR_CFI;
1195 switch (rule->flow_type & ~FLOW_EXT) {
1197 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1198 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1199 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1200 &rule->m_u.tcp_ip4_spec, tab);
1203 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1204 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1205 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1206 &rule->m_u.udp_ip4_spec, tab);
1209 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1211 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1212 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1213 (struct ethtool_tcpip4_spec *)&rule->m_u,
1217 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1219 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1220 (struct ethtool_usrip4_spec *) &rule->m_u,
1225 gfar_set_parse_bits(vlan, vlan_mask, tab);
1226 gfar_set_ether((struct ethhdr *) &rule->h_u,
1227 (struct ethhdr *) &rule->m_u, tab);
1233 /* Set the vlan attributes in the end */
1235 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1236 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1239 /* If there has been nothing written till now, it must be a default */
1240 if (tab->index == old_index) {
1241 gfar_set_mask(0xFFFFFFFF, tab);
1242 tab->fe[tab->index].ctrl = 0x20;
1243 tab->fe[tab->index].prop = 0x0;
1247 /* Remove last AND */
1248 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1250 /* Specify which queue to use or to drop */
1251 if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1252 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1254 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1256 /* Only big enough entries can be clustered */
1257 if (tab->index > (old_index + 2)) {
1258 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1259 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1262 /* In rare cases the cache can be full while there is
1265 if (tab->index > MAX_FILER_CACHE_IDX - 1)
1271 /* Copy size filer entries */
1272 static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0],
1273 struct gfar_filer_entry src[0], s32 size)
1277 dst[size].ctrl = src[size].ctrl;
1278 dst[size].prop = src[size].prop;
1282 /* Delete the contents of the filer-table between start and end
1285 static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab)
1289 if (end > MAX_FILER_CACHE_IDX || end < begin)
1293 length = end - begin;
1296 while (end < tab->index) {
1297 tab->fe[begin].ctrl = tab->fe[end].ctrl;
1298 tab->fe[begin++].prop = tab->fe[end++].prop;
1301 /* Fill up with don't cares */
1302 while (begin < tab->index) {
1303 tab->fe[begin].ctrl = 0x60;
1304 tab->fe[begin].prop = 0xFFFFFFFF;
1308 tab->index -= length;
1312 /* Make space on the wanted location */
1313 static int gfar_expand_filer_entries(u32 begin, u32 length,
1314 struct filer_table *tab)
1316 if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX ||
1317 begin > MAX_FILER_CACHE_IDX)
1320 gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]),
1321 tab->index - length + 1);
1323 tab->index += length;
1327 static int gfar_get_next_cluster_start(int start, struct filer_table *tab)
1329 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1331 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1332 (RQFCR_AND | RQFCR_CLE))
1338 static int gfar_get_next_cluster_end(int start, struct filer_table *tab)
1340 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1342 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1349 /* Uses hardwares clustering option to reduce
1350 * the number of filer table entries
1352 static void gfar_cluster_filer(struct filer_table *tab)
1354 s32 i = -1, j, iend, jend;
1356 while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) {
1358 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) {
1359 /* The cluster entries self and the previous one
1360 * (a mask) must be identical!
1362 if (tab->fe[i].ctrl != tab->fe[j].ctrl)
1364 if (tab->fe[i].prop != tab->fe[j].prop)
1366 if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl)
1368 if (tab->fe[i - 1].prop != tab->fe[j - 1].prop)
1370 iend = gfar_get_next_cluster_end(i, tab);
1371 jend = gfar_get_next_cluster_end(j, tab);
1372 if (jend == -1 || iend == -1)
1375 /* First we make some free space, where our cluster
1376 * element should be. Then we copy it there and finally
1377 * delete in from its old location.
1379 if (gfar_expand_filer_entries(iend, (jend - j), tab) ==
1383 gfar_copy_filer_entries(&(tab->fe[iend + 1]),
1384 &(tab->fe[jend + 1]), jend - j);
1386 if (gfar_trim_filer_entries(jend - 1,
1391 /* Mask out cluster bit */
1392 tab->fe[iend].ctrl &= ~(RQFCR_CLE);
1397 /* Swaps the masked bits of a1<>a2 and b1<>b2 */
1398 static void gfar_swap_bits(struct gfar_filer_entry *a1,
1399 struct gfar_filer_entry *a2,
1400 struct gfar_filer_entry *b1,
1401 struct gfar_filer_entry *b2, u32 mask)
1404 temp[0] = a1->ctrl & mask;
1405 temp[1] = a2->ctrl & mask;
1406 temp[2] = b1->ctrl & mask;
1407 temp[3] = b2->ctrl & mask;
1414 a1->ctrl |= temp[1];
1415 a2->ctrl |= temp[0];
1416 b1->ctrl |= temp[3];
1417 b2->ctrl |= temp[2];
1420 /* Generate a list consisting of masks values with their start and
1421 * end of validity and block as indicator for parts belonging
1422 * together (glued by ANDs) in mask_table
1424 static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table,
1425 struct filer_table *tab)
1427 u32 i, and_index = 0, block_index = 1;
1429 for (i = 0; i < tab->index; i++) {
1431 /* LSByte of control = 0 sets a mask */
1432 if (!(tab->fe[i].ctrl & 0xF)) {
1433 mask_table[and_index].mask = tab->fe[i].prop;
1434 mask_table[and_index].start = i;
1435 mask_table[and_index].block = block_index;
1437 mask_table[and_index - 1].end = i - 1;
1440 /* cluster starts and ends will be separated because they should
1441 * hold their position
1443 if (tab->fe[i].ctrl & RQFCR_CLE)
1445 /* A not set AND indicates the end of a depended block */
1446 if (!(tab->fe[i].ctrl & RQFCR_AND))
1450 mask_table[and_index - 1].end = i - 1;
1455 /* Sorts the entries of mask_table by the values of the masks.
1456 * Important: The 0xFF80 flags of the first and last entry of a
1457 * block must hold their position (which queue, CLusterEnable, ReJEct,
1460 static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table,
1461 struct filer_table *temp_table, u32 and_index)
1463 /* Pointer to compare function (_asc or _desc) */
1464 int (*gfar_comp)(const void *, const void *);
1466 u32 i, size = 0, start = 0, prev = 1;
1467 u32 old_first, old_last, new_first, new_last;
1469 gfar_comp = &gfar_comp_desc;
1471 for (i = 0; i < and_index; i++) {
1472 if (prev != mask_table[i].block) {
1473 old_first = mask_table[start].start + 1;
1474 old_last = mask_table[i - 1].end;
1475 sort(mask_table + start, size,
1476 sizeof(struct gfar_mask_entry),
1477 gfar_comp, &gfar_swap);
1479 /* Toggle order for every block. This makes the
1480 * thing more efficient!
1482 if (gfar_comp == gfar_comp_desc)
1483 gfar_comp = &gfar_comp_asc;
1485 gfar_comp = &gfar_comp_desc;
1487 new_first = mask_table[start].start + 1;
1488 new_last = mask_table[i - 1].end;
1490 gfar_swap_bits(&temp_table->fe[new_first],
1491 &temp_table->fe[old_first],
1492 &temp_table->fe[new_last],
1493 &temp_table->fe[old_last],
1494 RQFCR_QUEUE | RQFCR_CLE |
1495 RQFCR_RJE | RQFCR_AND);
1501 prev = mask_table[i].block;
1505 /* Reduces the number of masks needed in the filer table to save entries
1506 * This is done by sorting the masks of a depended block. A depended block is
1507 * identified by gluing ANDs or CLE. The sorting order toggles after every
1508 * block. Of course entries in scope of a mask must change their location with
1511 static int gfar_optimize_filer_masks(struct filer_table *tab)
1513 struct filer_table *temp_table;
1514 struct gfar_mask_entry *mask_table;
1516 u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0;
1519 /* We need a copy of the filer table because
1520 * we want to change its order
1522 temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL);
1523 if (temp_table == NULL)
1526 mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1,
1527 sizeof(struct gfar_mask_entry), GFP_KERNEL);
1529 if (mask_table == NULL) {
1534 and_index = gfar_generate_mask_table(mask_table, tab);
1536 gfar_sort_mask_table(mask_table, temp_table, and_index);
1538 /* Now we can copy the data from our duplicated filer table to
1539 * the real one in the order the mask table says
1541 for (i = 0; i < and_index; i++) {
1542 size = mask_table[i].end - mask_table[i].start + 1;
1543 gfar_copy_filer_entries(&(tab->fe[j]),
1544 &(temp_table->fe[mask_table[i].start]), size);
1548 /* And finally we just have to check for duplicated masks and drop the
1551 for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1552 if (tab->fe[i].ctrl == 0x80) {
1553 previous_mask = i++;
1557 for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1558 if (tab->fe[i].ctrl == 0x80) {
1559 if (tab->fe[i].prop == tab->fe[previous_mask].prop) {
1560 /* Two identical ones found!
1561 * So drop the second one!
1563 gfar_trim_filer_entries(i, i, tab);
1565 /* Not identical! */
1571 end: kfree(temp_table);
1575 /* Write the bit-pattern from software's buffer to hardware registers */
1576 static int gfar_write_filer_table(struct gfar_private *priv,
1577 struct filer_table *tab)
1580 if (tab->index > MAX_FILER_IDX - 1)
1583 /* Fill regular entries */
1584 for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl);
1586 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1587 /* Fill the rest with fall-troughs */
1588 for (; i < MAX_FILER_IDX - 1; i++)
1589 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1590 /* Last entry must be default accept
1591 * because that's what people expect
1593 gfar_write_filer(priv, i, 0x20, 0x0);
1598 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1599 struct gfar_private *priv)
1602 if (flow->flow_type & FLOW_EXT) {
1603 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1604 netdev_warn(priv->ndev,
1605 "User-specific data not supported!\n");
1606 if (~flow->m_ext.vlan_etype)
1607 netdev_warn(priv->ndev,
1608 "VLAN-etype not supported!\n");
1610 if (flow->flow_type == IP_USER_FLOW)
1611 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1612 netdev_warn(priv->ndev,
1613 "IP-Version differing from IPv4 not supported!\n");
1618 static int gfar_process_filer_changes(struct gfar_private *priv)
1620 struct ethtool_flow_spec_container *j;
1621 struct filer_table *tab;
1625 /* So index is set to zero, too! */
1626 tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1630 /* Now convert the existing filer data from flow_spec into
1631 * filer tables binary format
1633 list_for_each_entry(j, &priv->rx_list.list, list) {
1634 ret = gfar_convert_to_filer(&j->fs, tab);
1635 if (ret == -EBUSY) {
1636 netdev_err(priv->ndev,
1637 "Rule not added: No free space!\n");
1641 netdev_err(priv->ndev,
1642 "Rule not added: Unsupported Flow-type!\n");
1649 /* Optimizations to save entries */
1650 gfar_cluster_filer(tab);
1651 gfar_optimize_filer_masks(tab);
1653 pr_debug("\tSummary:\n"
1654 "\tData on hardware: %d\n"
1655 "\tCompression rate: %d%%\n",
1656 tab->index, 100 - (100 * tab->index) / i);
1658 /* Write everything to hardware */
1659 ret = gfar_write_filer_table(priv, tab);
1660 if (ret == -EBUSY) {
1661 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1670 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1674 for (i = 0; i < sizeof(flow->m_u); i++)
1675 flow->m_u.hdata[i] ^= 0xFF;
1677 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);
1678 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);
1679 flow->m_ext.data[0] ^= cpu_to_be32(~0);
1680 flow->m_ext.data[1] ^= cpu_to_be32(~0);
1683 static int gfar_add_cls(struct gfar_private *priv,
1684 struct ethtool_rx_flow_spec *flow)
1686 struct ethtool_flow_spec_container *temp, *comp;
1689 temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1692 memcpy(&temp->fs, flow, sizeof(temp->fs));
1694 gfar_invert_masks(&temp->fs);
1695 ret = gfar_check_capability(&temp->fs, priv);
1698 /* Link in the new element at the right @location */
1699 if (list_empty(&priv->rx_list.list)) {
1700 ret = gfar_check_filer_hardware(priv);
1703 list_add(&temp->list, &priv->rx_list.list);
1706 list_for_each_entry(comp, &priv->rx_list.list, list) {
1707 if (comp->fs.location > flow->location) {
1708 list_add_tail(&temp->list, &comp->list);
1711 if (comp->fs.location == flow->location) {
1712 netdev_err(priv->ndev,
1713 "Rule not added: ID %d not free!\n",
1719 list_add_tail(&temp->list, &priv->rx_list.list);
1723 ret = gfar_process_filer_changes(priv);
1726 priv->rx_list.count++;
1730 list_del(&temp->list);
1736 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1738 struct ethtool_flow_spec_container *comp;
1741 if (list_empty(&priv->rx_list.list))
1744 list_for_each_entry(comp, &priv->rx_list.list, list) {
1745 if (comp->fs.location == loc) {
1746 list_del(&comp->list);
1748 priv->rx_list.count--;
1749 gfar_process_filer_changes(priv);
1758 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1760 struct ethtool_flow_spec_container *comp;
1763 list_for_each_entry(comp, &priv->rx_list.list, list) {
1764 if (comp->fs.location == cmd->fs.location) {
1765 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1766 gfar_invert_masks(&cmd->fs);
1775 static int gfar_get_cls_all(struct gfar_private *priv,
1776 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1778 struct ethtool_flow_spec_container *comp;
1781 list_for_each_entry(comp, &priv->rx_list.list, list) {
1782 if (i == cmd->rule_cnt)
1784 rule_locs[i] = comp->fs.location;
1788 cmd->data = MAX_FILER_IDX;
1794 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1796 struct gfar_private *priv = netdev_priv(dev);
1799 if (test_bit(GFAR_RESETTING, &priv->state))
1802 mutex_lock(&priv->rx_queue_access);
1806 ret = gfar_set_hash_opts(priv, cmd);
1808 case ETHTOOL_SRXCLSRLINS:
1809 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1810 cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1811 cmd->fs.location >= MAX_FILER_IDX) {
1815 ret = gfar_add_cls(priv, &cmd->fs);
1817 case ETHTOOL_SRXCLSRLDEL:
1818 ret = gfar_del_cls(priv, cmd->fs.location);
1824 mutex_unlock(&priv->rx_queue_access);
1829 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1832 struct gfar_private *priv = netdev_priv(dev);
1836 case ETHTOOL_GRXRINGS:
1837 cmd->data = priv->num_rx_queues;
1839 case ETHTOOL_GRXCLSRLCNT:
1840 cmd->rule_cnt = priv->rx_list.count;
1842 case ETHTOOL_GRXCLSRULE:
1843 ret = gfar_get_cls(priv, cmd);
1845 case ETHTOOL_GRXCLSRLALL:
1846 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1856 int gfar_phc_index = -1;
1857 EXPORT_SYMBOL(gfar_phc_index);
1859 static int gfar_get_ts_info(struct net_device *dev,
1860 struct ethtool_ts_info *info)
1862 struct gfar_private *priv = netdev_priv(dev);
1864 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1865 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1866 SOF_TIMESTAMPING_SOFTWARE;
1867 info->phc_index = -1;
1870 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1871 SOF_TIMESTAMPING_RX_HARDWARE |
1872 SOF_TIMESTAMPING_RAW_HARDWARE;
1873 info->phc_index = gfar_phc_index;
1874 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1875 (1 << HWTSTAMP_TX_ON);
1876 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1877 (1 << HWTSTAMP_FILTER_ALL);
1881 const struct ethtool_ops gfar_ethtool_ops = {
1882 .get_settings = gfar_gsettings,
1883 .set_settings = gfar_ssettings,
1884 .get_drvinfo = gfar_gdrvinfo,
1885 .get_regs_len = gfar_reglen,
1886 .get_regs = gfar_get_regs,
1887 .get_link = ethtool_op_get_link,
1888 .get_coalesce = gfar_gcoalesce,
1889 .set_coalesce = gfar_scoalesce,
1890 .get_ringparam = gfar_gringparam,
1891 .set_ringparam = gfar_sringparam,
1892 .get_pauseparam = gfar_gpauseparam,
1893 .set_pauseparam = gfar_spauseparam,
1894 .get_strings = gfar_gstrings,
1895 .get_sset_count = gfar_sset_count,
1896 .get_ethtool_stats = gfar_fill_stats,
1897 .get_msglevel = gfar_get_msglevel,
1898 .set_msglevel = gfar_set_msglevel,
1900 .get_wol = gfar_get_wol,
1901 .set_wol = gfar_set_wol,
1903 .set_rxnfc = gfar_set_nfc,
1904 .get_rxnfc = gfar_get_nfc,
1905 .get_ts_info = gfar_get_ts_info,