diff --git a/[refs] b/[refs] index 2031f5c657aa..62774d104d48 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: ed58dd41f3aeefc11a7f634db90687f92ea8632e +refs/heads/master: 1d60ab0574fae362b1cca0ef52181ef75fd46832 diff --git a/trunk/include/linux/netpoll.h b/trunk/include/linux/netpoll.h index e3d79593fb3a..a0525a1f4715 100644 --- a/trunk/include/linux/netpoll.h +++ b/trunk/include/linux/netpoll.h @@ -25,7 +25,6 @@ struct netpoll { struct netpoll_info { atomic_t refcnt; - int rx_flags; spinlock_t rx_lock; struct netpoll *rx_np; /* netpoll that registered an rx_hook */ struct sk_buff_head arp_tx; /* list of arp requests to reply to */ @@ -51,12 +50,12 @@ static inline int netpoll_rx(struct sk_buff *skb) unsigned long flags; int ret = 0; - if (!npinfo || (!npinfo->rx_np && !npinfo->rx_flags)) + if (!npinfo || !npinfo->rx_np) return 0; spin_lock_irqsave(&npinfo->rx_lock, flags); - /* check rx_flags again with the lock held */ - if (npinfo->rx_flags && __netpoll_rx(skb)) + /* check rx_np again with the lock held */ + if (npinfo->rx_np && __netpoll_rx(skb)) ret = 1; spin_unlock_irqrestore(&npinfo->rx_lock, flags); diff --git a/trunk/include/net/inet_sock.h b/trunk/include/net/inet_sock.h index 89cd011edb99..70013c5f4e59 100644 --- a/trunk/include/net/inet_sock.h +++ b/trunk/include/net/inet_sock.h @@ -175,8 +175,7 @@ extern void build_ehash_secret(void); static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport, const __be32 faddr, const __be16 fport) { - return jhash_3words((__force __u32) laddr, - (__force __u32) faddr, + return jhash_2words((__force __u32) laddr ^ (__force __u32) faddr, ((__u32) lport) << 16 | (__force __u32)fport, inet_ehash_secret); } diff --git a/trunk/net/core/netpoll.c b/trunk/net/core/netpoll.c index 4b7e756181c9..6faa128a4c8e 100644 --- a/trunk/net/core/netpoll.c +++ b/trunk/net/core/netpoll.c @@ -39,8 +39,6 @@ static struct sk_buff_head skb_pool; static atomic_t trapped; #define USEC_PER_POLL 50 -#define NETPOLL_RX_ENABLED 1 -#define NETPOLL_RX_DROP 2 #define MAX_SKB_SIZE \ (MAX_UDP_CHUNK + sizeof(struct udphdr) + \ @@ -128,13 +126,11 @@ static int poll_one_napi(struct netpoll_info *npinfo, if (!test_bit(NAPI_STATE_SCHED, &napi->state)) return budget; - npinfo->rx_flags |= NETPOLL_RX_DROP; atomic_inc(&trapped); work = napi->poll(napi, budget); atomic_dec(&trapped); - npinfo->rx_flags &= ~NETPOLL_RX_DROP; return budget - work; } @@ -476,7 +472,7 @@ int __netpoll_rx(struct sk_buff *skb) if (skb->dev->type != ARPHRD_ETHER) goto out; - /* check if netpoll clients need ARP */ + /* if receive ARP during middle of NAPI poll, then queue */ if (skb->protocol == htons(ETH_P_ARP) && atomic_read(&trapped)) { skb_queue_tail(&npi->arp_tx, skb); @@ -538,6 +534,9 @@ int __netpoll_rx(struct sk_buff *skb) return 1; out: + /* If packet received while already in poll then just + * silently drop. + */ if (atomic_read(&trapped)) { kfree_skb(skb); return 1; @@ -676,7 +675,6 @@ int netpoll_setup(struct netpoll *np) goto release; } - npinfo->rx_flags = 0; npinfo->rx_np = NULL; spin_lock_init(&npinfo->rx_lock); @@ -758,7 +756,6 @@ int netpoll_setup(struct netpoll *np) if (np->rx_hook) { spin_lock_irqsave(&npinfo->rx_lock, flags); - npinfo->rx_flags |= NETPOLL_RX_ENABLED; npinfo->rx_np = np; spin_unlock_irqrestore(&npinfo->rx_lock, flags); } @@ -800,7 +797,6 @@ void netpoll_cleanup(struct netpoll *np) if (npinfo->rx_np == np) { spin_lock_irqsave(&npinfo->rx_lock, flags); npinfo->rx_np = NULL; - npinfo->rx_flags &= ~NETPOLL_RX_ENABLED; spin_unlock_irqrestore(&npinfo->rx_lock, flags); } diff --git a/trunk/net/ipv4/Kconfig b/trunk/net/ipv4/Kconfig index 9c7e5ffb223d..19880b086e71 100644 --- a/trunk/net/ipv4/Kconfig +++ b/trunk/net/ipv4/Kconfig @@ -343,7 +343,7 @@ config INET_ESP tristate "IP: ESP transformation" select XFRM select CRYPTO - select CRYPTO_AUTHENC + select CRYPTO_AEAD select CRYPTO_HMAC select CRYPTO_MD5 select CRYPTO_CBC diff --git a/trunk/net/ipv6/Kconfig b/trunk/net/ipv6/Kconfig index 58219dfffef8..3ffb0323668c 100644 --- a/trunk/net/ipv6/Kconfig +++ b/trunk/net/ipv6/Kconfig @@ -85,7 +85,7 @@ config INET6_ESP depends on IPV6 select XFRM select CRYPTO - select CRYPTO_AUTHENC + select CRYPTO_AEAD select CRYPTO_HMAC select CRYPTO_MD5 select CRYPTO_CBC diff --git a/trunk/net/mac80211/rc80211_pid_algo.c b/trunk/net/mac80211/rc80211_pid_algo.c index c339571632b2..3b77410588e7 100644 --- a/trunk/net/mac80211/rc80211_pid_algo.c +++ b/trunk/net/mac80211/rc80211_pid_algo.c @@ -2,7 +2,7 @@ * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2005, Devicescape Software, Inc. * Copyright 2007, Mattias Nissler - * Copyright 2007, Stefano Brivio + * Copyright 2007-2008, Stefano Brivio * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -63,72 +63,66 @@ * RC_PID_ARITH_SHIFT. */ - -/* Shift the adjustment so that we won't switch to a lower rate if it exhibited - * a worse failed frames behaviour and we'll choose the highest rate whose - * failed frames behaviour is not worse than the one of the original rate - * target. While at it, check that the adjustment is within the ranges. Then, - * provide the new rate index. */ -static int rate_control_pid_shift_adjust(struct rc_pid_rateinfo *r, - int adj, int cur, int l) -{ - int i, j, k, tmp; - - j = r[cur].rev_index; - i = j + adj; - - if (i < 0) - return r[0].index; - if (i >= l - 1) - return r[l - 1].index; - - tmp = i; - - if (adj < 0) { - for (k = j; k >= i; k--) - if (r[k].diff <= r[j].diff) - tmp = k; - } else { - for (k = i + 1; k + i < l; k++) - if (r[k].diff <= r[i].diff) - tmp = k; - } - - return r[tmp].index; -} - +/* Adjust the rate while ensuring that we won't switch to a lower rate if it + * exhibited a worse failed frames behaviour and we'll choose the highest rate + * whose failed frames behaviour is not worse than the one of the original rate + * target. While at it, check that the new rate is valid. */ static void rate_control_pid_adjust_rate(struct ieee80211_local *local, struct sta_info *sta, int adj, struct rc_pid_rateinfo *rinfo) { struct ieee80211_sub_if_data *sdata; struct ieee80211_hw_mode *mode; - int newidx; - int maxrate; - int back = (adj > 0) ? 1 : -1; + int cur_sorted, new_sorted, probe, tmp, n_bitrates; + int cur = sta->txrate; sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); mode = local->oper_hw_mode; - maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1; + n_bitrates = mode->num_rates; - newidx = rate_control_pid_shift_adjust(rinfo, adj, sta->txrate, - mode->num_rates); + /* Map passed arguments to sorted values. */ + cur_sorted = rinfo[cur].rev_index; + new_sorted = cur_sorted + adj; - while (newidx != sta->txrate) { - if (rate_supported(sta, mode, newidx) && - (maxrate < 0 || newidx <= maxrate)) { - sta->txrate = newidx; - break; - } + /* Check limits. */ + if (new_sorted < 0) + new_sorted = rinfo[0].rev_index; + else if (new_sorted >= n_bitrates) + new_sorted = rinfo[n_bitrates - 1].rev_index; - newidx += back; + tmp = new_sorted; + + if (adj < 0) { + /* Ensure that the rate decrease isn't disadvantageous. */ + for (probe = cur_sorted; probe >= new_sorted; probe--) + if (rinfo[probe].diff <= rinfo[cur_sorted].diff && + rate_supported(sta, mode, rinfo[probe].index)) + tmp = probe; + } else { + /* Look for rate increase with zero (or below) cost. */ + for (probe = new_sorted + 1; probe < n_bitrates; probe++) + if (rinfo[probe].diff <= rinfo[new_sorted].diff && + rate_supported(sta, mode, rinfo[probe].index)) + tmp = probe; } + /* Fit the rate found to the nearest supported rate. */ + do { + if (rate_supported(sta, mode, rinfo[tmp].index)) { + sta->txrate = rinfo[tmp].index; + break; + } + if (adj < 0) + tmp--; + else + tmp++; + } while (tmp < n_bitrates && tmp >= 0); + #ifdef CONFIG_MAC80211_DEBUGFS rate_control_pid_event_rate_change( &((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events, - newidx, mode->rates[newidx].rate); + cur, mode->rates[cur].rate); #endif }