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] = {
65 "rx-allocation-errors",
66 "rx-large-frame-errors",
67 "rx-short-frame-errors",
68 "rx-non-octet-errors",
73 "rx-truncated-frames",
80 "tx-rx-65-127-frames",
81 "tx-rx-128-255-frames",
82 "tx-rx-256-511-frames",
83 "tx-rx-512-1023-frames",
84 "tx-rx-1024-1518-frames",
85 "tx-rx-1519-1522-good-vlan",
89 "receive-multicast-packet",
90 "receive-broadcast-packet",
91 "rx-control-frame-packets",
92 "rx-pause-frame-packets",
95 "rx-frame-length-error",
97 "rx-carrier-sense-error",
98 "rx-undersize-packets",
99 "rx-oversize-packets",
100 "rx-fragmented-frames",
105 "tx-multicast-packets",
106 "tx-broadcast-packets",
107 "tx-pause-control-frames",
108 "tx-deferral-packets",
109 "tx-excessive-deferral-packets",
110 "tx-single-collision-packets",
111 "tx-multiple-collision-packets",
112 "tx-late-collision-packets",
113 "tx-excessive-collision-packets",
114 "tx-total-collision",
120 "tx-oversize-frames",
121 "tx-undersize-frames",
122 "tx-fragmented-frames",
125 /* Fill in a buffer with the strings which correspond to the
127 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
129 struct gfar_private *priv = netdev_priv(dev);
131 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
132 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
134 memcpy(buf, stat_gstrings,
135 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
138 /* Fill in an array of 64-bit statistics from various sources.
139 * This array will be appended to the end of the ethtool_stats
140 * structure, and returned to user space
142 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
146 struct gfar_private *priv = netdev_priv(dev);
147 struct gfar __iomem *regs = priv->gfargrp[0].regs;
148 atomic64_t *extra = (atomic64_t *)&priv->extra_stats;
150 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
151 buf[i] = atomic64_read(&extra[i]);
153 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
154 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon;
156 for (; i < GFAR_STATS_LEN; i++, rmon++)
157 buf[i] = (u64) gfar_read(rmon);
161 static int gfar_sset_count(struct net_device *dev, int sset)
163 struct gfar_private *priv = netdev_priv(dev);
167 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
168 return GFAR_STATS_LEN;
170 return GFAR_EXTRA_STATS_LEN;
176 /* Fills in the drvinfo structure with some basic info */
177 static void gfar_gdrvinfo(struct net_device *dev,
178 struct ethtool_drvinfo *drvinfo)
180 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
181 strlcpy(drvinfo->version, gfar_driver_version,
182 sizeof(drvinfo->version));
183 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
184 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info));
185 drvinfo->regdump_len = 0;
186 drvinfo->eedump_len = 0;
190 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
192 struct gfar_private *priv = netdev_priv(dev);
193 struct phy_device *phydev = priv->phydev;
198 return phy_ethtool_sset(phydev, cmd);
202 /* Return the current settings in the ethtool_cmd structure */
203 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
205 struct gfar_private *priv = netdev_priv(dev);
206 struct phy_device *phydev = priv->phydev;
207 struct gfar_priv_rx_q *rx_queue = NULL;
208 struct gfar_priv_tx_q *tx_queue = NULL;
212 tx_queue = priv->tx_queue[0];
213 rx_queue = priv->rx_queue[0];
215 /* etsec-1.7 and older versions have only one txic
216 * and rxic regs although they support multiple queues */
217 cmd->maxtxpkt = get_icft_value(tx_queue->txic);
218 cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
220 return phy_ethtool_gset(phydev, cmd);
223 /* Return the length of the register structure */
224 static int gfar_reglen(struct net_device *dev)
226 return sizeof (struct gfar);
229 /* Return a dump of the GFAR register space */
230 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,
234 struct gfar_private *priv = netdev_priv(dev);
235 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
236 u32 *buf = (u32 *) regbuf;
238 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
239 buf[i] = gfar_read(&theregs[i]);
242 /* Convert microseconds to ethernet clock ticks, which changes
243 * depending on what speed the controller is running at */
244 static unsigned int gfar_usecs2ticks(struct gfar_private *priv,
249 /* The timer is different, depending on the interface speed */
250 switch (priv->phydev->speed) {
252 count = GFAR_GBIT_TIME;
255 count = GFAR_100_TIME;
259 count = GFAR_10_TIME;
263 /* Make sure we return a number greater than 0
265 return (usecs * 1000 + count - 1) / count;
268 /* Convert ethernet clock ticks to microseconds */
269 static unsigned int gfar_ticks2usecs(struct gfar_private *priv,
274 /* The timer is different, depending on the interface speed */
275 switch (priv->phydev->speed) {
277 count = GFAR_GBIT_TIME;
280 count = GFAR_100_TIME;
284 count = GFAR_10_TIME;
288 /* Make sure we return a number greater than 0 */
289 /* if ticks is > 0 */
290 return (ticks * count) / 1000;
293 /* Get the coalescing parameters, and put them in the cvals
295 static int gfar_gcoalesce(struct net_device *dev,
296 struct ethtool_coalesce *cvals)
298 struct gfar_private *priv = netdev_priv(dev);
299 struct gfar_priv_rx_q *rx_queue = NULL;
300 struct gfar_priv_tx_q *tx_queue = NULL;
301 unsigned long rxtime;
302 unsigned long rxcount;
303 unsigned long txtime;
304 unsigned long txcount;
306 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
309 if (NULL == priv->phydev)
312 rx_queue = priv->rx_queue[0];
313 tx_queue = priv->tx_queue[0];
315 rxtime = get_ictt_value(rx_queue->rxic);
316 rxcount = get_icft_value(rx_queue->rxic);
317 txtime = get_ictt_value(tx_queue->txic);
318 txcount = get_icft_value(tx_queue->txic);
319 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
320 cvals->rx_max_coalesced_frames = rxcount;
322 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
323 cvals->tx_max_coalesced_frames = txcount;
325 cvals->use_adaptive_rx_coalesce = 0;
326 cvals->use_adaptive_tx_coalesce = 0;
328 cvals->pkt_rate_low = 0;
329 cvals->rx_coalesce_usecs_low = 0;
330 cvals->rx_max_coalesced_frames_low = 0;
331 cvals->tx_coalesce_usecs_low = 0;
332 cvals->tx_max_coalesced_frames_low = 0;
334 /* When the packet rate is below pkt_rate_high but above
335 * pkt_rate_low (both measured in packets per second) the
336 * normal {rx,tx}_* coalescing parameters are used.
339 /* When the packet rate is (measured in packets per second)
340 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
343 cvals->pkt_rate_high = 0;
344 cvals->rx_coalesce_usecs_high = 0;
345 cvals->rx_max_coalesced_frames_high = 0;
346 cvals->tx_coalesce_usecs_high = 0;
347 cvals->tx_max_coalesced_frames_high = 0;
349 /* How often to do adaptive coalescing packet rate sampling,
350 * measured in seconds. Must not be zero.
352 cvals->rate_sample_interval = 0;
357 /* Change the coalescing values.
358 * Both cvals->*_usecs and cvals->*_frames have to be > 0
359 * in order for coalescing to be active
361 static int gfar_scoalesce(struct net_device *dev,
362 struct ethtool_coalesce *cvals)
364 struct gfar_private *priv = netdev_priv(dev);
367 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
370 if (NULL == priv->phydev)
373 /* Check the bounds of the values */
374 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
375 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
376 GFAR_MAX_COAL_USECS);
380 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
381 netdev_info(dev, "Coalescing is limited to %d frames\n",
382 GFAR_MAX_COAL_FRAMES);
386 /* Check the bounds of the values */
387 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
388 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
389 GFAR_MAX_COAL_USECS);
393 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
394 netdev_info(dev, "Coalescing is limited to %d frames\n",
395 GFAR_MAX_COAL_FRAMES);
399 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
402 /* Set up rx coalescing */
403 if ((cvals->rx_coalesce_usecs == 0) ||
404 (cvals->rx_max_coalesced_frames == 0)) {
405 for (i = 0; i < priv->num_rx_queues; i++)
406 priv->rx_queue[i]->rxcoalescing = 0;
408 for (i = 0; i < priv->num_rx_queues; i++)
409 priv->rx_queue[i]->rxcoalescing = 1;
412 for (i = 0; i < priv->num_rx_queues; i++) {
413 priv->rx_queue[i]->rxic = mk_ic_value(
414 cvals->rx_max_coalesced_frames,
415 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
418 /* Set up tx coalescing */
419 if ((cvals->tx_coalesce_usecs == 0) ||
420 (cvals->tx_max_coalesced_frames == 0)) {
421 for (i = 0; i < priv->num_tx_queues; i++)
422 priv->tx_queue[i]->txcoalescing = 0;
424 for (i = 0; i < priv->num_tx_queues; i++)
425 priv->tx_queue[i]->txcoalescing = 1;
428 for (i = 0; i < priv->num_tx_queues; i++) {
429 priv->tx_queue[i]->txic = mk_ic_value(
430 cvals->tx_max_coalesced_frames,
431 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
434 if (dev->flags & IFF_UP) {
436 err = startup_gfar(dev);
438 gfar_mac_reset(priv);
441 clear_bit_unlock(GFAR_RESETTING, &priv->state);
446 /* Fills in rvals with the current ring parameters. Currently,
447 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
448 * jumbo are ignored by the driver */
449 static void gfar_gringparam(struct net_device *dev,
450 struct ethtool_ringparam *rvals)
452 struct gfar_private *priv = netdev_priv(dev);
453 struct gfar_priv_tx_q *tx_queue = NULL;
454 struct gfar_priv_rx_q *rx_queue = NULL;
456 tx_queue = priv->tx_queue[0];
457 rx_queue = priv->rx_queue[0];
459 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
460 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
461 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
462 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
464 /* Values changeable by the user. The valid values are
465 * in the range 1 to the "*_max_pending" counterpart above.
467 rvals->rx_pending = rx_queue->rx_ring_size;
468 rvals->rx_mini_pending = rx_queue->rx_ring_size;
469 rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
470 rvals->tx_pending = tx_queue->tx_ring_size;
473 /* Change the current ring parameters, stopping the controller if
474 * necessary so that we don't mess things up while we're in motion.
476 static int gfar_sringparam(struct net_device *dev,
477 struct ethtool_ringparam *rvals)
479 struct gfar_private *priv = netdev_priv(dev);
482 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
485 if (!is_power_of_2(rvals->rx_pending)) {
486 netdev_err(dev, "Ring sizes must be a power of 2\n");
490 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
493 if (!is_power_of_2(rvals->tx_pending)) {
494 netdev_err(dev, "Ring sizes must be a power of 2\n");
498 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
501 if (dev->flags & IFF_UP)
504 /* Change the sizes */
505 for (i = 0; i < priv->num_rx_queues; i++)
506 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
508 for (i = 0; i < priv->num_tx_queues; i++)
509 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
511 /* Rebuild the rings with the new size */
512 if (dev->flags & IFF_UP)
513 err = startup_gfar(dev);
515 clear_bit_unlock(GFAR_RESETTING, &priv->state);
520 static void gfar_gpauseparam(struct net_device *dev,
521 struct ethtool_pauseparam *epause)
523 struct gfar_private *priv = netdev_priv(dev);
525 epause->autoneg = !!priv->pause_aneg_en;
526 epause->rx_pause = !!priv->rx_pause_en;
527 epause->tx_pause = !!priv->tx_pause_en;
530 static int gfar_spauseparam(struct net_device *dev,
531 struct ethtool_pauseparam *epause)
533 struct gfar_private *priv = netdev_priv(dev);
534 struct phy_device *phydev = priv->phydev;
535 struct gfar __iomem *regs = priv->gfargrp[0].regs;
541 if (!(phydev->supported & SUPPORTED_Pause) ||
542 (!(phydev->supported & SUPPORTED_Asym_Pause) &&
543 (epause->rx_pause != epause->tx_pause)))
546 priv->rx_pause_en = priv->tx_pause_en = 0;
547 if (epause->rx_pause) {
548 priv->rx_pause_en = 1;
550 if (epause->tx_pause) {
551 priv->tx_pause_en = 1;
552 /* FLOW_CTRL_RX & TX */
553 newadv = ADVERTISED_Pause;
554 } else /* FLOW_CTLR_RX */
555 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
556 } else if (epause->tx_pause) {
557 priv->tx_pause_en = 1;
559 newadv = ADVERTISED_Asym_Pause;
564 priv->pause_aneg_en = 1;
566 priv->pause_aneg_en = 0;
568 oldadv = phydev->advertising &
569 (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
570 if (oldadv != newadv) {
571 phydev->advertising &=
572 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
573 phydev->advertising |= newadv;
575 /* inform link partner of our
576 * new flow ctrl settings
578 return phy_start_aneg(phydev);
580 if (!epause->autoneg) {
582 tempval = gfar_read(®s->maccfg1);
583 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
585 priv->tx_actual_en = 0;
586 if (priv->tx_pause_en) {
587 priv->tx_actual_en = 1;
588 tempval |= MACCFG1_TX_FLOW;
591 if (priv->rx_pause_en)
592 tempval |= MACCFG1_RX_FLOW;
593 gfar_write(®s->maccfg1, tempval);
600 int gfar_set_features(struct net_device *dev, netdev_features_t features)
602 netdev_features_t changed = dev->features ^ features;
603 struct gfar_private *priv = netdev_priv(dev);
606 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
610 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
613 dev->features = features;
615 if (dev->flags & IFF_UP) {
616 /* Now we take down the rings to rebuild them */
618 err = startup_gfar(dev);
620 gfar_mac_reset(priv);
623 clear_bit_unlock(GFAR_RESETTING, &priv->state);
628 static uint32_t gfar_get_msglevel(struct net_device *dev)
630 struct gfar_private *priv = netdev_priv(dev);
632 return priv->msg_enable;
635 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
637 struct gfar_private *priv = netdev_priv(dev);
639 priv->msg_enable = data;
643 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
645 struct gfar_private *priv = netdev_priv(dev);
647 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
648 wol->supported = WAKE_MAGIC;
649 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
651 wol->supported = wol->wolopts = 0;
655 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
657 struct gfar_private *priv = netdev_priv(dev);
659 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
663 if (wol->wolopts & ~WAKE_MAGIC)
666 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
668 priv->wol_en = !!device_may_wakeup(&dev->dev);
674 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
676 u32 fcr = 0x0, fpr = FPR_FILER_MASK;
678 if (ethflow & RXH_L2DA) {
679 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
680 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
681 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
682 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
683 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
684 priv->cur_filer_idx = priv->cur_filer_idx - 1;
686 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
687 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
688 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
689 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
690 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
691 priv->cur_filer_idx = priv->cur_filer_idx - 1;
694 if (ethflow & RXH_VLAN) {
695 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
696 RQFCR_AND | RQFCR_HASHTBL_0;
697 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
698 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
699 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
700 priv->cur_filer_idx = priv->cur_filer_idx - 1;
703 if (ethflow & RXH_IP_SRC) {
704 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
705 RQFCR_AND | RQFCR_HASHTBL_0;
706 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
707 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
708 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
709 priv->cur_filer_idx = priv->cur_filer_idx - 1;
712 if (ethflow & (RXH_IP_DST)) {
713 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
714 RQFCR_AND | RQFCR_HASHTBL_0;
715 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
716 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
717 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
718 priv->cur_filer_idx = priv->cur_filer_idx - 1;
721 if (ethflow & RXH_L3_PROTO) {
722 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
723 RQFCR_AND | RQFCR_HASHTBL_0;
724 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
725 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
726 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
727 priv->cur_filer_idx = priv->cur_filer_idx - 1;
730 if (ethflow & RXH_L4_B_0_1) {
731 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
732 RQFCR_AND | RQFCR_HASHTBL_0;
733 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
734 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
735 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
736 priv->cur_filer_idx = priv->cur_filer_idx - 1;
739 if (ethflow & RXH_L4_B_2_3) {
740 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
741 RQFCR_AND | RQFCR_HASHTBL_0;
742 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
743 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
744 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
745 priv->cur_filer_idx = priv->cur_filer_idx - 1;
749 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
752 unsigned int last_rule_idx = priv->cur_filer_idx;
753 unsigned int cmp_rqfpr;
754 unsigned int *local_rqfpr;
755 unsigned int *local_rqfcr;
756 int i = 0x0, k = 0x0;
757 int j = MAX_FILER_IDX, l = 0x0;
760 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
762 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
764 if (!local_rqfpr || !local_rqfcr) {
771 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
774 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
777 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
780 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
783 netdev_err(priv->ndev,
784 "Right now this class is not supported\n");
789 for (i = 0; i < MAX_FILER_IDX + 1; i++) {
790 local_rqfpr[j] = priv->ftp_rqfpr[i];
791 local_rqfcr[j] = priv->ftp_rqfcr[i];
793 if ((priv->ftp_rqfcr[i] ==
794 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
795 (priv->ftp_rqfpr[i] == cmp_rqfpr))
799 if (i == MAX_FILER_IDX + 1) {
800 netdev_err(priv->ndev,
801 "No parse rule found, can't create hash rules\n");
806 /* If a match was found, then it begins the starting of a cluster rule
807 * if it was already programmed, we need to overwrite these rules
809 for (l = i+1; l < MAX_FILER_IDX; l++) {
810 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
811 !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
812 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
813 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
814 priv->ftp_rqfpr[l] = FPR_FILER_MASK;
815 gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
820 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
821 (priv->ftp_rqfcr[l] & RQFCR_AND))
824 local_rqfpr[j] = priv->ftp_rqfpr[l];
825 local_rqfcr[j] = priv->ftp_rqfcr[l];
830 priv->cur_filer_idx = l - 1;
834 ethflow_to_filer_rules(priv, ethflow);
836 /* Write back the popped out rules again */
837 for (k = j+1; k < MAX_FILER_IDX; k++) {
838 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
839 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
840 gfar_write_filer(priv, priv->cur_filer_idx,
841 local_rqfcr[k], local_rqfpr[k]);
842 if (!priv->cur_filer_idx)
844 priv->cur_filer_idx = priv->cur_filer_idx - 1;
853 static int gfar_set_hash_opts(struct gfar_private *priv,
854 struct ethtool_rxnfc *cmd)
856 /* write the filer rules here */
857 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
863 static int gfar_check_filer_hardware(struct gfar_private *priv)
865 struct gfar __iomem *regs = priv->gfargrp[0].regs;
868 /* Check if we are in FIFO mode */
869 i = gfar_read(®s->ecntrl);
871 if (i == ECNTRL_FIFM) {
872 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
873 i = gfar_read(®s->rctrl);
874 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
875 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
876 netdev_info(priv->ndev,
877 "Receive Queue Filtering enabled\n");
879 netdev_warn(priv->ndev,
880 "Receive Queue Filtering disabled\n");
884 /* Or in standard mode */
886 i = gfar_read(®s->rctrl);
887 i &= RCTRL_PRSDEP_MASK;
888 if (i == RCTRL_PRSDEP_MASK) {
889 netdev_info(priv->ndev,
890 "Receive Queue Filtering enabled\n");
892 netdev_warn(priv->ndev,
893 "Receive Queue Filtering disabled\n");
898 /* Sets the properties for arbitrary filer rule
899 * to the first 4 Layer 4 Bytes
901 gfar_write(®s->rbifx, 0xC0C1C2C3);
905 static int gfar_comp_asc(const void *a, const void *b)
907 return memcmp(a, b, 4);
910 static int gfar_comp_desc(const void *a, const void *b)
912 return -memcmp(a, b, 4);
915 static void gfar_swap(void *a, void *b, int size)
926 /* Write a mask to filer cache */
927 static void gfar_set_mask(u32 mask, struct filer_table *tab)
929 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
930 tab->fe[tab->index].prop = mask;
934 /* Sets parse bits (e.g. IP or TCP) */
935 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
937 gfar_set_mask(mask, tab);
938 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
940 tab->fe[tab->index].prop = value;
944 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
945 struct filer_table *tab)
947 gfar_set_mask(mask, tab);
948 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
949 tab->fe[tab->index].prop = value;
953 /* For setting a tuple of value and mask of type flag
955 * IP-Src = 10.0.0.0/255.0.0.0
956 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
958 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
959 * For a don't care mask it gives us a 0
961 * The check if don't care and the mask adjustment if mask=0 is done for VLAN
962 * and MAC stuff on an upper level (due to missing information on this level).
963 * For these guys we can discard them if they are value=0 and mask=0.
965 * Further the all masks are one-padded for better hardware efficiency.
967 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
968 struct filer_table *tab)
975 mask |= RQFCR_PID_PRI_MASK;
980 if (!~(mask | RQFCR_PID_L4P_MASK))
985 mask |= RQFCR_PID_L4P_MASK;
991 mask |= RQFCR_PID_VID_MASK;
997 if (!~(mask | RQFCR_PID_PORT_MASK))
1002 mask |= RQFCR_PID_PORT_MASK;
1009 if (!(value | mask))
1011 mask |= RQFCR_PID_MAC_MASK;
1013 /* for all real 32bit masks */
1021 gfar_set_general_attribute(value, mask, flag, tab);
1024 /* Translates value and mask for UDP, TCP or SCTP */
1025 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
1026 struct ethtool_tcpip4_spec *mask,
1027 struct filer_table *tab)
1029 gfar_set_attribute(be32_to_cpu(value->ip4src),
1030 be32_to_cpu(mask->ip4src),
1031 RQFCR_PID_SIA, tab);
1032 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1033 be32_to_cpu(mask->ip4dst),
1034 RQFCR_PID_DIA, tab);
1035 gfar_set_attribute(be16_to_cpu(value->pdst),
1036 be16_to_cpu(mask->pdst),
1037 RQFCR_PID_DPT, tab);
1038 gfar_set_attribute(be16_to_cpu(value->psrc),
1039 be16_to_cpu(mask->psrc),
1040 RQFCR_PID_SPT, tab);
1041 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1044 /* Translates value and mask for RAW-IP4 */
1045 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
1046 struct ethtool_usrip4_spec *mask,
1047 struct filer_table *tab)
1049 gfar_set_attribute(be32_to_cpu(value->ip4src),
1050 be32_to_cpu(mask->ip4src),
1051 RQFCR_PID_SIA, tab);
1052 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1053 be32_to_cpu(mask->ip4dst),
1054 RQFCR_PID_DIA, tab);
1055 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1056 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1057 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),
1058 be32_to_cpu(mask->l4_4_bytes),
1059 RQFCR_PID_ARB, tab);
1063 /* Translates value and mask for ETHER spec */
1064 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1065 struct filer_table *tab)
1067 u32 upper_temp_mask = 0;
1068 u32 lower_temp_mask = 0;
1070 /* Source address */
1071 if (!is_broadcast_ether_addr(mask->h_source)) {
1072 if (is_zero_ether_addr(mask->h_source)) {
1073 upper_temp_mask = 0xFFFFFFFF;
1074 lower_temp_mask = 0xFFFFFFFF;
1076 upper_temp_mask = mask->h_source[0] << 16 |
1077 mask->h_source[1] << 8 |
1079 lower_temp_mask = mask->h_source[3] << 16 |
1080 mask->h_source[4] << 8 |
1084 gfar_set_attribute(value->h_source[0] << 16 |
1085 value->h_source[1] << 8 |
1087 upper_temp_mask, RQFCR_PID_SAH, tab);
1088 /* And the same for the lower part */
1089 gfar_set_attribute(value->h_source[3] << 16 |
1090 value->h_source[4] << 8 |
1092 lower_temp_mask, RQFCR_PID_SAL, tab);
1094 /* Destination address */
1095 if (!is_broadcast_ether_addr(mask->h_dest)) {
1096 /* Special for destination is limited broadcast */
1097 if ((is_broadcast_ether_addr(value->h_dest) &&
1098 is_zero_ether_addr(mask->h_dest))) {
1099 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1101 if (is_zero_ether_addr(mask->h_dest)) {
1102 upper_temp_mask = 0xFFFFFFFF;
1103 lower_temp_mask = 0xFFFFFFFF;
1105 upper_temp_mask = mask->h_dest[0] << 16 |
1106 mask->h_dest[1] << 8 |
1108 lower_temp_mask = mask->h_dest[3] << 16 |
1109 mask->h_dest[4] << 8 |
1114 gfar_set_attribute(value->h_dest[0] << 16 |
1115 value->h_dest[1] << 8 |
1117 upper_temp_mask, RQFCR_PID_DAH, tab);
1118 /* And the same for the lower part */
1119 gfar_set_attribute(value->h_dest[3] << 16 |
1120 value->h_dest[4] << 8 |
1122 lower_temp_mask, RQFCR_PID_DAL, tab);
1126 gfar_set_attribute(be16_to_cpu(value->h_proto),
1127 be16_to_cpu(mask->h_proto),
1128 RQFCR_PID_ETY, tab);
1131 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)
1133 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;
1136 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)
1138 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;
1141 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)
1143 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;
1146 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)
1148 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;
1151 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)
1153 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1157 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)
1159 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1163 /* Convert a rule to binary filter format of gianfar */
1164 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1165 struct filer_table *tab)
1167 u32 vlan = 0, vlan_mask = 0;
1168 u32 id = 0, id_mask = 0;
1169 u32 cfi = 0, cfi_mask = 0;
1170 u32 prio = 0, prio_mask = 0;
1171 u32 old_index = tab->index;
1173 /* Check if vlan is wanted */
1174 if ((rule->flow_type & FLOW_EXT) &&
1175 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {
1176 if (!rule->m_ext.vlan_tci)
1177 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);
1180 vlan_mask = RQFPR_VLN;
1182 /* Separate the fields */
1183 id = vlan_tci_vid(rule);
1184 id_mask = vlan_tci_vidm(rule);
1185 cfi = vlan_tci_cfi(rule);
1186 cfi_mask = vlan_tci_cfim(rule);
1187 prio = vlan_tci_prio(rule);
1188 prio_mask = vlan_tci_priom(rule);
1190 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1192 vlan_mask |= RQFPR_CFI;
1193 } else if (cfi != VLAN_TAG_PRESENT &&
1194 cfi_mask == VLAN_TAG_PRESENT) {
1195 vlan_mask |= RQFPR_CFI;
1199 switch (rule->flow_type & ~FLOW_EXT) {
1201 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1202 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1203 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1204 &rule->m_u.tcp_ip4_spec, tab);
1207 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1208 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1209 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1210 &rule->m_u.udp_ip4_spec, tab);
1213 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1215 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1216 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1217 (struct ethtool_tcpip4_spec *)&rule->m_u,
1221 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1223 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1224 (struct ethtool_usrip4_spec *) &rule->m_u,
1229 gfar_set_parse_bits(vlan, vlan_mask, tab);
1230 gfar_set_ether((struct ethhdr *) &rule->h_u,
1231 (struct ethhdr *) &rule->m_u, tab);
1237 /* Set the vlan attributes in the end */
1239 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1240 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1243 /* If there has been nothing written till now, it must be a default */
1244 if (tab->index == old_index) {
1245 gfar_set_mask(0xFFFFFFFF, tab);
1246 tab->fe[tab->index].ctrl = 0x20;
1247 tab->fe[tab->index].prop = 0x0;
1251 /* Remove last AND */
1252 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1254 /* Specify which queue to use or to drop */
1255 if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1256 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1258 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1260 /* Only big enough entries can be clustered */
1261 if (tab->index > (old_index + 2)) {
1262 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1263 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1266 /* In rare cases the cache can be full while there is
1269 if (tab->index > MAX_FILER_CACHE_IDX - 1)
1275 /* Copy size filer entries */
1276 static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0],
1277 struct gfar_filer_entry src[0], s32 size)
1281 dst[size].ctrl = src[size].ctrl;
1282 dst[size].prop = src[size].prop;
1286 /* Delete the contents of the filer-table between start and end
1289 static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab)
1293 if (end > MAX_FILER_CACHE_IDX || end < begin)
1297 length = end - begin;
1300 while (end < tab->index) {
1301 tab->fe[begin].ctrl = tab->fe[end].ctrl;
1302 tab->fe[begin++].prop = tab->fe[end++].prop;
1305 /* Fill up with don't cares */
1306 while (begin < tab->index) {
1307 tab->fe[begin].ctrl = 0x60;
1308 tab->fe[begin].prop = 0xFFFFFFFF;
1312 tab->index -= length;
1316 /* Make space on the wanted location */
1317 static int gfar_expand_filer_entries(u32 begin, u32 length,
1318 struct filer_table *tab)
1320 if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX ||
1321 begin > MAX_FILER_CACHE_IDX)
1324 gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]),
1325 tab->index - length + 1);
1327 tab->index += length;
1331 static int gfar_get_next_cluster_start(int start, struct filer_table *tab)
1333 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1335 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1336 (RQFCR_AND | RQFCR_CLE))
1342 static int gfar_get_next_cluster_end(int start, struct filer_table *tab)
1344 for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1);
1346 if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) ==
1353 /* Uses hardwares clustering option to reduce
1354 * the number of filer table entries
1356 static void gfar_cluster_filer(struct filer_table *tab)
1358 s32 i = -1, j, iend, jend;
1360 while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) {
1362 while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) {
1363 /* The cluster entries self and the previous one
1364 * (a mask) must be identical!
1366 if (tab->fe[i].ctrl != tab->fe[j].ctrl)
1368 if (tab->fe[i].prop != tab->fe[j].prop)
1370 if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl)
1372 if (tab->fe[i - 1].prop != tab->fe[j - 1].prop)
1374 iend = gfar_get_next_cluster_end(i, tab);
1375 jend = gfar_get_next_cluster_end(j, tab);
1376 if (jend == -1 || iend == -1)
1379 /* First we make some free space, where our cluster
1380 * element should be. Then we copy it there and finally
1381 * delete in from its old location.
1383 if (gfar_expand_filer_entries(iend, (jend - j), tab) ==
1387 gfar_copy_filer_entries(&(tab->fe[iend + 1]),
1388 &(tab->fe[jend + 1]), jend - j);
1390 if (gfar_trim_filer_entries(jend - 1,
1395 /* Mask out cluster bit */
1396 tab->fe[iend].ctrl &= ~(RQFCR_CLE);
1401 /* Swaps the masked bits of a1<>a2 and b1<>b2 */
1402 static void gfar_swap_bits(struct gfar_filer_entry *a1,
1403 struct gfar_filer_entry *a2,
1404 struct gfar_filer_entry *b1,
1405 struct gfar_filer_entry *b2, u32 mask)
1408 temp[0] = a1->ctrl & mask;
1409 temp[1] = a2->ctrl & mask;
1410 temp[2] = b1->ctrl & mask;
1411 temp[3] = b2->ctrl & mask;
1418 a1->ctrl |= temp[1];
1419 a2->ctrl |= temp[0];
1420 b1->ctrl |= temp[3];
1421 b2->ctrl |= temp[2];
1424 /* Generate a list consisting of masks values with their start and
1425 * end of validity and block as indicator for parts belonging
1426 * together (glued by ANDs) in mask_table
1428 static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table,
1429 struct filer_table *tab)
1431 u32 i, and_index = 0, block_index = 1;
1433 for (i = 0; i < tab->index; i++) {
1435 /* LSByte of control = 0 sets a mask */
1436 if (!(tab->fe[i].ctrl & 0xF)) {
1437 mask_table[and_index].mask = tab->fe[i].prop;
1438 mask_table[and_index].start = i;
1439 mask_table[and_index].block = block_index;
1441 mask_table[and_index - 1].end = i - 1;
1444 /* cluster starts and ends will be separated because they should
1445 * hold their position
1447 if (tab->fe[i].ctrl & RQFCR_CLE)
1449 /* A not set AND indicates the end of a depended block */
1450 if (!(tab->fe[i].ctrl & RQFCR_AND))
1454 mask_table[and_index - 1].end = i - 1;
1459 /* Sorts the entries of mask_table by the values of the masks.
1460 * Important: The 0xFF80 flags of the first and last entry of a
1461 * block must hold their position (which queue, CLusterEnable, ReJEct,
1464 static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table,
1465 struct filer_table *temp_table, u32 and_index)
1467 /* Pointer to compare function (_asc or _desc) */
1468 int (*gfar_comp)(const void *, const void *);
1470 u32 i, size = 0, start = 0, prev = 1;
1471 u32 old_first, old_last, new_first, new_last;
1473 gfar_comp = &gfar_comp_desc;
1475 for (i = 0; i < and_index; i++) {
1476 if (prev != mask_table[i].block) {
1477 old_first = mask_table[start].start + 1;
1478 old_last = mask_table[i - 1].end;
1479 sort(mask_table + start, size,
1480 sizeof(struct gfar_mask_entry),
1481 gfar_comp, &gfar_swap);
1483 /* Toggle order for every block. This makes the
1484 * thing more efficient!
1486 if (gfar_comp == gfar_comp_desc)
1487 gfar_comp = &gfar_comp_asc;
1489 gfar_comp = &gfar_comp_desc;
1491 new_first = mask_table[start].start + 1;
1492 new_last = mask_table[i - 1].end;
1494 gfar_swap_bits(&temp_table->fe[new_first],
1495 &temp_table->fe[old_first],
1496 &temp_table->fe[new_last],
1497 &temp_table->fe[old_last],
1498 RQFCR_QUEUE | RQFCR_CLE |
1499 RQFCR_RJE | RQFCR_AND);
1505 prev = mask_table[i].block;
1509 /* Reduces the number of masks needed in the filer table to save entries
1510 * This is done by sorting the masks of a depended block. A depended block is
1511 * identified by gluing ANDs or CLE. The sorting order toggles after every
1512 * block. Of course entries in scope of a mask must change their location with
1515 static int gfar_optimize_filer_masks(struct filer_table *tab)
1517 struct filer_table *temp_table;
1518 struct gfar_mask_entry *mask_table;
1520 u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0;
1523 /* We need a copy of the filer table because
1524 * we want to change its order
1526 temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL);
1527 if (temp_table == NULL)
1530 mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1,
1531 sizeof(struct gfar_mask_entry), GFP_KERNEL);
1533 if (mask_table == NULL) {
1538 and_index = gfar_generate_mask_table(mask_table, tab);
1540 gfar_sort_mask_table(mask_table, temp_table, and_index);
1542 /* Now we can copy the data from our duplicated filer table to
1543 * the real one in the order the mask table says
1545 for (i = 0; i < and_index; i++) {
1546 size = mask_table[i].end - mask_table[i].start + 1;
1547 gfar_copy_filer_entries(&(tab->fe[j]),
1548 &(temp_table->fe[mask_table[i].start]), size);
1552 /* And finally we just have to check for duplicated masks and drop the
1555 for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1556 if (tab->fe[i].ctrl == 0x80) {
1557 previous_mask = i++;
1561 for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) {
1562 if (tab->fe[i].ctrl == 0x80) {
1563 if (tab->fe[i].prop == tab->fe[previous_mask].prop) {
1564 /* Two identical ones found!
1565 * So drop the second one!
1567 gfar_trim_filer_entries(i, i, tab);
1569 /* Not identical! */
1575 end: kfree(temp_table);
1579 /* Write the bit-pattern from software's buffer to hardware registers */
1580 static int gfar_write_filer_table(struct gfar_private *priv,
1581 struct filer_table *tab)
1584 if (tab->index > MAX_FILER_IDX - 1)
1587 /* Fill regular entries */
1588 for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].prop);
1590 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1591 /* Fill the rest with fall-troughs */
1592 for (; i < MAX_FILER_IDX - 1; i++)
1593 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1594 /* Last entry must be default accept
1595 * because that's what people expect
1597 gfar_write_filer(priv, i, 0x20, 0x0);
1602 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1603 struct gfar_private *priv)
1606 if (flow->flow_type & FLOW_EXT) {
1607 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1608 netdev_warn(priv->ndev,
1609 "User-specific data not supported!\n");
1610 if (~flow->m_ext.vlan_etype)
1611 netdev_warn(priv->ndev,
1612 "VLAN-etype not supported!\n");
1614 if (flow->flow_type == IP_USER_FLOW)
1615 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1616 netdev_warn(priv->ndev,
1617 "IP-Version differing from IPv4 not supported!\n");
1622 static int gfar_process_filer_changes(struct gfar_private *priv)
1624 struct ethtool_flow_spec_container *j;
1625 struct filer_table *tab;
1629 /* So index is set to zero, too! */
1630 tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1634 /* Now convert the existing filer data from flow_spec into
1635 * filer tables binary format
1637 list_for_each_entry(j, &priv->rx_list.list, list) {
1638 ret = gfar_convert_to_filer(&j->fs, tab);
1639 if (ret == -EBUSY) {
1640 netdev_err(priv->ndev,
1641 "Rule not added: No free space!\n");
1645 netdev_err(priv->ndev,
1646 "Rule not added: Unsupported Flow-type!\n");
1653 /* Optimizations to save entries */
1654 gfar_cluster_filer(tab);
1655 gfar_optimize_filer_masks(tab);
1657 pr_debug("\tSummary:\n"
1658 "\tData on hardware: %d\n"
1659 "\tCompression rate: %d%%\n",
1660 tab->index, 100 - (100 * tab->index) / i);
1662 /* Write everything to hardware */
1663 ret = gfar_write_filer_table(priv, tab);
1664 if (ret == -EBUSY) {
1665 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1674 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1678 for (i = 0; i < sizeof(flow->m_u); i++)
1679 flow->m_u.hdata[i] ^= 0xFF;
1681 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);
1682 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);
1683 flow->m_ext.data[0] ^= cpu_to_be32(~0);
1684 flow->m_ext.data[1] ^= cpu_to_be32(~0);
1687 static int gfar_add_cls(struct gfar_private *priv,
1688 struct ethtool_rx_flow_spec *flow)
1690 struct ethtool_flow_spec_container *temp, *comp;
1693 temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1696 memcpy(&temp->fs, flow, sizeof(temp->fs));
1698 gfar_invert_masks(&temp->fs);
1699 ret = gfar_check_capability(&temp->fs, priv);
1702 /* Link in the new element at the right @location */
1703 if (list_empty(&priv->rx_list.list)) {
1704 ret = gfar_check_filer_hardware(priv);
1707 list_add(&temp->list, &priv->rx_list.list);
1710 list_for_each_entry(comp, &priv->rx_list.list, list) {
1711 if (comp->fs.location > flow->location) {
1712 list_add_tail(&temp->list, &comp->list);
1715 if (comp->fs.location == flow->location) {
1716 netdev_err(priv->ndev,
1717 "Rule not added: ID %d not free!\n",
1723 list_add_tail(&temp->list, &priv->rx_list.list);
1727 ret = gfar_process_filer_changes(priv);
1730 priv->rx_list.count++;
1734 list_del(&temp->list);
1740 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1742 struct ethtool_flow_spec_container *comp;
1745 if (list_empty(&priv->rx_list.list))
1748 list_for_each_entry(comp, &priv->rx_list.list, list) {
1749 if (comp->fs.location == loc) {
1750 list_del(&comp->list);
1752 priv->rx_list.count--;
1753 gfar_process_filer_changes(priv);
1762 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1764 struct ethtool_flow_spec_container *comp;
1767 list_for_each_entry(comp, &priv->rx_list.list, list) {
1768 if (comp->fs.location == cmd->fs.location) {
1769 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1770 gfar_invert_masks(&cmd->fs);
1779 static int gfar_get_cls_all(struct gfar_private *priv,
1780 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1782 struct ethtool_flow_spec_container *comp;
1785 list_for_each_entry(comp, &priv->rx_list.list, list) {
1786 if (i == cmd->rule_cnt)
1788 rule_locs[i] = comp->fs.location;
1792 cmd->data = MAX_FILER_IDX;
1798 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1800 struct gfar_private *priv = netdev_priv(dev);
1803 if (test_bit(GFAR_RESETTING, &priv->state))
1806 mutex_lock(&priv->rx_queue_access);
1810 ret = gfar_set_hash_opts(priv, cmd);
1812 case ETHTOOL_SRXCLSRLINS:
1813 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1814 cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1815 cmd->fs.location >= MAX_FILER_IDX) {
1819 ret = gfar_add_cls(priv, &cmd->fs);
1821 case ETHTOOL_SRXCLSRLDEL:
1822 ret = gfar_del_cls(priv, cmd->fs.location);
1828 mutex_unlock(&priv->rx_queue_access);
1833 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1836 struct gfar_private *priv = netdev_priv(dev);
1840 case ETHTOOL_GRXRINGS:
1841 cmd->data = priv->num_rx_queues;
1843 case ETHTOOL_GRXCLSRLCNT:
1844 cmd->rule_cnt = priv->rx_list.count;
1846 case ETHTOOL_GRXCLSRULE:
1847 ret = gfar_get_cls(priv, cmd);
1849 case ETHTOOL_GRXCLSRLALL:
1850 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1860 int gfar_phc_index = -1;
1861 EXPORT_SYMBOL(gfar_phc_index);
1863 static int gfar_get_ts_info(struct net_device *dev,
1864 struct ethtool_ts_info *info)
1866 struct gfar_private *priv = netdev_priv(dev);
1868 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1869 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1870 SOF_TIMESTAMPING_SOFTWARE;
1871 info->phc_index = -1;
1874 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1875 SOF_TIMESTAMPING_RX_HARDWARE |
1876 SOF_TIMESTAMPING_RAW_HARDWARE;
1877 info->phc_index = gfar_phc_index;
1878 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1879 (1 << HWTSTAMP_TX_ON);
1880 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1881 (1 << HWTSTAMP_FILTER_ALL);
1885 const struct ethtool_ops gfar_ethtool_ops = {
1886 .get_settings = gfar_gsettings,
1887 .set_settings = gfar_ssettings,
1888 .get_drvinfo = gfar_gdrvinfo,
1889 .get_regs_len = gfar_reglen,
1890 .get_regs = gfar_get_regs,
1891 .get_link = ethtool_op_get_link,
1892 .get_coalesce = gfar_gcoalesce,
1893 .set_coalesce = gfar_scoalesce,
1894 .get_ringparam = gfar_gringparam,
1895 .set_ringparam = gfar_sringparam,
1896 .get_pauseparam = gfar_gpauseparam,
1897 .set_pauseparam = gfar_spauseparam,
1898 .get_strings = gfar_gstrings,
1899 .get_sset_count = gfar_sset_count,
1900 .get_ethtool_stats = gfar_fill_stats,
1901 .get_msglevel = gfar_get_msglevel,
1902 .set_msglevel = gfar_set_msglevel,
1904 .get_wol = gfar_get_wol,
1905 .set_wol = gfar_set_wol,
1907 .set_rxnfc = gfar_set_nfc,
1908 .get_rxnfc = gfar_get_nfc,
1909 .get_ts_info = gfar_get_ts_info,