[07/19] rt2x00: Optimize TX descriptor handling

Message ID	201103031942.36144.IvDoorn@gmail.com (mailing list archive)
State	Not Applicable, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p23Imj2t021009 for <patchwork-linux-wireless@patchwork.kernel.org>; Thu, 3 Mar 2011 18:49:21 GMT DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; b=XJeOEvavwYRgUjGQ6sfY4k+HDRzDWX/Bvh2CE7l9VuP/8T7J38gZjKqhwDPUvvFo96 mQnayUD/jDlxFxZfZawdIcT8hBlvdy582Lmsq16F/Yy807B/1ymhRdNPd5SacuGPl8xJ 5X5woZR5Ucuu0JWhK7e8V9rLDy0OxDTMVLfsk= From: Ivo van Doorn <ivdoorn@gmail.com> To: "John W. Linville" <linville@tuxdriver.com> Subject: [PATCH 07/19] rt2x00: Optimize TX descriptor handling Date: Thu, 3 Mar 2011 19:42:35 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.32.26-175.fc12.x86_64; KDE/4.4.5; x86_64; ; ) Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com References: <201103031938.56423.IvDoorn@gmail.com> <201103031941.04133.IvDoorn@gmail.com> <201103031942.02498.IvDoorn@gmail.com> In-Reply-To: <201103031942.02498.IvDoorn@gmail.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201103031942.36144.IvDoorn@gmail.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index d38acf4..60d7596 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -1131,19 +1131,21 @@ static void rt2400pci_write_tx_desc(struct queue_entry *entry, rt2x00_desc_write(txd, 2, word); rt2x00_desc_read(txd, 3, &word); - rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->signal); + rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal); rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_REGNUM, 5); rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_BUSY, 1); - rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->service); + rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service); rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_REGNUM, 6); rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_BUSY, 1); rt2x00_desc_write(txd, 3, word); rt2x00_desc_read(txd, 4, &word); - rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, txdesc->length_low); + rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, + txdesc->u.plcp.length_low); rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_REGNUM, 8); rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_BUSY, 1); - rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, txdesc->length_high); + rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, + txdesc->u.plcp.length_high); rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_REGNUM, 7); rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_BUSY, 1); rt2x00_desc_write(txd, 4, word); diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index b00e4d4..53ff64e 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1287,10 +1287,12 @@ static void rt2500pci_write_tx_desc(struct queue_entry *entry, rt2x00_desc_write(txd, 2, word); rt2x00_desc_read(txd, 3, &word); - rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->signal); - rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->service); - rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW, txdesc->length_low); - rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH, txdesc->length_high); + rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal); + rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service); + rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW, + txdesc->u.plcp.length_low); + rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH, + txdesc->u.plcp.length_high); rt2x00_desc_write(txd, 3, word); rt2x00_desc_read(txd, 10, &word); diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index b71df29..ed5bc9c 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1114,10 +1114,12 @@ static void rt2500usb_write_tx_desc(struct queue_entry *entry, rt2x00_desc_write(txd, 1, word); rt2x00_desc_read(txd, 2, &word); - rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal); - rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high); + rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->u.plcp.signal); + rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->u.plcp.service); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, + txdesc->u.plcp.length_low); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, + txdesc->u.plcp.length_high); rt2x00_desc_write(txd, 2, word); if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) { diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 66ff8d5..d789d5b 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -472,14 +472,15 @@ void rt2800_write_tx_data(struct queue_entry *entry, test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); rt2x00_set_field32(&word, TXWI_W0_AMPDU, test_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_MPDU_DENSITY, txdesc->mpdu_density); - rt2x00_set_field32(&word, TXWI_W0_TX_OP, txdesc->txop); - rt2x00_set_field32(&word, TXWI_W0_MCS, txdesc->mcs); + rt2x00_set_field32(&word, TXWI_W0_MPDU_DENSITY, + txdesc->u.ht.mpdu_density); + rt2x00_set_field32(&word, TXWI_W0_TX_OP, txdesc->u.ht.txop); + rt2x00_set_field32(&word, TXWI_W0_MCS, txdesc->u.ht.mcs); rt2x00_set_field32(&word, TXWI_W0_BW, test_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags)); rt2x00_set_field32(&word, TXWI_W0_SHORT_GI, test_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_STBC, txdesc->stbc); + rt2x00_set_field32(&word, TXWI_W0_STBC, txdesc->u.ht.stbc); rt2x00_set_field32(&word, TXWI_W0_PHYMODE, txdesc->rate_mode); rt2x00_desc_write(txwi, 0, word); @@ -488,7 +489,7 @@ void rt2800_write_tx_data(struct queue_entry *entry, test_bit(ENTRY_TXD_ACK, &txdesc->flags)); rt2x00_set_field32(&word, TXWI_W1_NSEQ, test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->ba_size); + rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->u.ht.ba_size); rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID, test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ? txdesc->key_idx : 0xff); diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 9dbb598..1b5753b 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -979,6 +979,7 @@ static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev) if (!modparam_nohwcrypt) __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags); __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags); + __set_bit(DRIVER_REQUIRE_HT_TX_DESC, &rt2x00dev->flags); /* * Set the rssi offset. diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 5d91561..f1a9214 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -565,6 +565,7 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev) __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags); __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags); __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags); + __set_bit(DRIVER_REQUIRE_HT_TX_DESC, &rt2x00dev->flags); /* * Set the rssi offset. diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index be4d4cd..e17e348 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -663,6 +663,7 @@ enum rt2x00_flags { DRIVER_REQUIRE_TXSTATUS_FIFO, DRIVER_REQUIRE_TASKLET_CONTEXT, DRIVER_REQUIRE_SW_SEQNO, + DRIVER_REQUIRE_HT_TX_DESC, /* * Driver features diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c index 03d9579..78a0e73 100644 --- a/drivers/net/wireless/rt2x00/rt2x00ht.c +++ b/drivers/net/wireless/rt2x00/rt2x00ht.c @@ -38,12 +38,12 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data; if (tx_info->control.sta) - txdesc->mpdu_density = + txdesc->u.ht.mpdu_density = tx_info->control.sta->ht_cap.ampdu_density; - txdesc->ba_size = 7; /* FIXME: What value is needed? */ + txdesc->u.ht.ba_size = 7; /* FIXME: What value is needed? */ - txdesc->stbc = + txdesc->u.ht.stbc = (tx_info->flags & IEEE80211_TX_CTL_STBC) >> IEEE80211_TX_CTL_STBC_SHIFT; /* @@ -51,22 +51,22 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, * mcs rate to be used */ if (txrate->flags & IEEE80211_TX_RC_MCS) { - txdesc->mcs = txrate->idx; + txdesc->u.ht.mcs = txrate->idx; /* * MIMO PS should be set to 1 for STA's using dynamic SM PS * when using more then one tx stream (>MCS7). */ - if (tx_info->control.sta && txdesc->mcs > 7 && + if (tx_info->control.sta && txdesc->u.ht.mcs > 7 && ((tx_info->control.sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> IEEE80211_HT_CAP_SM_PS_SHIFT) == WLAN_HT_CAP_SM_PS_DYNAMIC) __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags); } else { - txdesc->mcs = rt2x00_get_rate_mcs(hwrate->mcs); + txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs); if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) - txdesc->mcs |= 0x08; + txdesc->u.ht.mcs |= 0x08; } /* @@ -105,11 +105,11 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, * for frames not transmitted with TXOP_HTTXOP */ if (ieee80211_is_mgmt(hdr->frame_control)) - txdesc->txop = TXOP_BACKOFF; + txdesc->u.ht.txop = TXOP_BACKOFF; else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)) - txdesc->txop = TXOP_SIFS; + txdesc->u.ht.txop = TXOP_SIFS; else - txdesc->txop = TXOP_HTTXOP; + txdesc->u.ht.txop = TXOP_HTTXOP; } u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev, diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index eebb564..7816c1c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -270,12 +270,12 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, * PLCP setup * Length calculation depends on OFDM/CCK rate. */ - txdesc->signal = hwrate->plcp; - txdesc->service = 0x04; + txdesc->u.plcp.signal = hwrate->plcp; + txdesc->u.plcp.service = 0x04; if (hwrate->flags & DEV_RATE_OFDM) { - txdesc->length_high = (data_length >> 6) & 0x3f; - txdesc->length_low = data_length & 0x3f; + txdesc->u.plcp.length_high = (data_length >> 6) & 0x3f; + txdesc->u.plcp.length_low = data_length & 0x3f; } else { /* * Convert length to microseconds. @@ -290,18 +290,18 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, * Check if we need to set the Length Extension */ if (hwrate->bitrate == 110 && residual <= 30) - txdesc->service |= 0x80; + txdesc->u.plcp.service |= 0x80; } - txdesc->length_high = (duration >> 8) & 0xff; - txdesc->length_low = duration & 0xff; + txdesc->u.plcp.length_high = (duration >> 8) & 0xff; + txdesc->u.plcp.length_low = duration & 0xff; /* * When preamble is enabled we should set the * preamble bit for the signal. */ if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) - txdesc->signal |= 0x08; + txdesc->u.plcp.signal |= 0x08; } } @@ -397,9 +397,12 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, * Apply TX descriptor handling by components */ rt2x00crypto_create_tx_descriptor(entry, txdesc); - rt2x00ht_create_tx_descriptor(entry, txdesc, hwrate); rt2x00queue_create_tx_descriptor_seq(entry, txdesc); - rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate); + + if (test_bit(DRIVER_REQUIRE_HT_TX_DESC, &rt2x00dev->flags)) + rt2x00ht_create_tx_descriptor(entry, txdesc, hwrate); + else + rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate); } static int rt2x00queue_write_tx_data(struct queue_entry *entry, diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index fab8e26..3305520 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -305,20 +305,27 @@ struct txentry_desc { u16 length; u16 header_length; - u16 length_high; - u16 length_low; - u16 signal; - u16 service; - - u16 mcs; - u16 stbc; - u16 ba_size; + union { + struct { + u16 length_high; + u16 length_low; + u16 signal; + u16 service; + } plcp; + + struct { + u16 mcs; + u16 stbc; + u16 ba_size; + u16 mpdu_density; + short txop; + } ht; + } u; + u16 rate_mode; - u16 mpdu_density; short retry_limit; short ifs; - short txop; enum cipher cipher; u16 key_idx; diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 674239e..6b49c28 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -1898,10 +1898,12 @@ static void rt61pci_write_tx_desc(struct queue_entry *entry, rt2x00_desc_write(txd, 1, word); rt2x00_desc_read(txd, 2, &word); - rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal); - rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high); + rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->u.plcp.signal); + rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->u.plcp.service); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, + txdesc->u.plcp.length_low); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, + txdesc->u.plcp.length_high); rt2x00_desc_write(txd, 2, word); if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) { diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 61c964d..80d06d0 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -1499,10 +1499,12 @@ static void rt73usb_write_tx_desc(struct queue_entry *entry, rt2x00_desc_write(txd, 1, word); rt2x00_desc_read(txd, 2, &word); - rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal); - rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high); + rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->u.plcp.signal); + rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->u.plcp.service); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, + txdesc->u.plcp.length_low); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, + txdesc->u.plcp.length_high); rt2x00_desc_write(txd, 2, word); if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {

[07/19] rt2x00: Optimize TX descriptor handling

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Patch