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Diffstat (limited to 'net/mac80211/rc80211_minstrel.c')
-rw-r--r--net/mac80211/rc80211_minstrel.c152
1 files changed, 0 insertions, 152 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index eac61242238a..dead57ba9eac 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -572,138 +572,6 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
minstrel_update_rates(mp, mi);
}
-static void *
-minstrel_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
-{
- struct ieee80211_supported_band *sband;
- struct minstrel_sta_info *mi;
- struct minstrel_priv *mp = priv;
- struct ieee80211_hw *hw = mp->hw;
- int max_rates = 0;
- int i;
-
- mi = kzalloc(sizeof(struct minstrel_sta_info), gfp);
- if (!mi)
- return NULL;
-
- for (i = 0; i < NUM_NL80211_BANDS; i++) {
- sband = hw->wiphy->bands[i];
- if (sband && sband->n_bitrates > max_rates)
- max_rates = sband->n_bitrates;
- }
-
- mi->r = kcalloc(max_rates, sizeof(struct minstrel_rate), gfp);
- if (!mi->r)
- goto error;
-
- mi->sample_table = kmalloc_array(max_rates, SAMPLE_COLUMNS, gfp);
- if (!mi->sample_table)
- goto error1;
-
- mi->last_stats_update = jiffies;
- return mi;
-
-error1:
- kfree(mi->r);
-error:
- kfree(mi);
- return NULL;
-}
-
-static void
-minstrel_free_sta(void *priv, struct ieee80211_sta *sta, void *priv_sta)
-{
- struct minstrel_sta_info *mi = priv_sta;
-
- kfree(mi->sample_table);
- kfree(mi->r);
- kfree(mi);
-}
-
-static void
-minstrel_init_cck_rates(struct minstrel_priv *mp)
-{
- static const int bitrates[4] = { 10, 20, 55, 110 };
- struct ieee80211_supported_band *sband;
- u32 rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef);
- int i, j;
-
- sband = mp->hw->wiphy->bands[NL80211_BAND_2GHZ];
- if (!sband)
- return;
-
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *rate = &sband->bitrates[i];
-
- if (rate->flags & IEEE80211_RATE_ERP_G)
- continue;
-
- if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
- continue;
-
- for (j = 0; j < ARRAY_SIZE(bitrates); j++) {
- if (rate->bitrate != bitrates[j])
- continue;
-
- mp->cck_rates[j] = i;
- break;
- }
- }
-}
-
-static void *
-minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
-{
- struct minstrel_priv *mp;
-
- mp = kzalloc(sizeof(struct minstrel_priv), GFP_ATOMIC);
- if (!mp)
- return NULL;
-
- /* contention window settings
- * Just an approximation. Using the per-queue values would complicate
- * the calculations and is probably unnecessary */
- mp->cw_min = 15;
- mp->cw_max = 1023;
-
- /* number of packets (in %) to use for sampling other rates
- * sample less often for non-mrr packets, because the overhead
- * is much higher than with mrr */
- mp->lookaround_rate = 5;
- mp->lookaround_rate_mrr = 10;
-
- /* maximum time that the hw is allowed to stay in one MRR segment */
- mp->segment_size = 6000;
-
- if (hw->max_rate_tries > 0)
- mp->max_retry = hw->max_rate_tries;
- else
- /* safe default, does not necessarily have to match hw properties */
- mp->max_retry = 7;
-
- if (hw->max_rates >= 4)
- mp->has_mrr = true;
-
- mp->hw = hw;
- mp->update_interval = 100;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- mp->fixed_rate_idx = (u32) -1;
- debugfs_create_u32("fixed_rate_idx", 0666, debugfsdir,
- &mp->fixed_rate_idx);
-#endif
-
- minstrel_init_cck_rates(mp);
-
- return mp;
-}
-
-static void
-minstrel_free(void *priv)
-{
- kfree(priv);
-}
-
static u32 minstrel_get_expected_throughput(void *priv_sta)
{
struct minstrel_sta_info *mi = priv_sta;
@@ -722,28 +590,8 @@ static u32 minstrel_get_expected_throughput(void *priv_sta)
}
const struct rate_control_ops mac80211_minstrel = {
- .name = "minstrel",
.tx_status_ext = minstrel_tx_status,
.get_rate = minstrel_get_rate,
.rate_init = minstrel_rate_init,
- .alloc = minstrel_alloc,
- .free = minstrel_free,
- .alloc_sta = minstrel_alloc_sta,
- .free_sta = minstrel_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = minstrel_add_sta_debugfs,
-#endif
.get_expected_throughput = minstrel_get_expected_throughput,
};
-
-int __init
-rc80211_minstrel_init(void)
-{
- return ieee80211_rate_control_register(&mac80211_minstrel);
-}
-
-void
-rc80211_minstrel_exit(void)
-{
- ieee80211_rate_control_unregister(&mac80211_minstrel);
-}