Subject: [RFC] Merge tx/rx descriptor flags of rtl818x devices

Hi,

In rtl818x code tx/rx descriptor flags are common between all devices as far
as I could check (looking at r8180 specs I found on the web recently and on
vendor rtl8187b driver). Here is a proposal for merging them:
_________

rtl818x: merge tx/rx descriptor flags

Tx/Rx descriptor flags are common between rtl818x devices, only with
additions for newer chips, thus use same flags in the code.

Signed-off-by: Herton Ronaldo Krzesinski <[email protected]>
---
drivers/net/wireless/rtl8180.h | 31 -------------------------------
drivers/net/wireless/rtl8180_dev.c | 34 +++++++++++++++++-----------------
drivers/net/wireless/rtl8187.h | 6 ------
drivers/net/wireless/rtl8187_dev.c | 10 +++++-----
drivers/net/wireless/rtl818x.h | 35 +++++++++++++++++++++++++++++++++++
5 files changed, 57 insertions(+), 59 deletions(-)

diff --git a/drivers/net/wireless/rtl8180.h b/drivers/net/wireless/rtl8180.h
index 082a11f..8721282 100644
--- a/drivers/net/wireless/rtl8180.h
+++ b/drivers/net/wireless/rtl8180.h
@@ -24,20 +24,6 @@
#define ANAPARAM_PWR1_SHIFT 20
#define ANAPARAM_PWR1_MASK (0x7F << ANAPARAM_PWR1_SHIFT)

-enum rtl8180_tx_desc_flags {
- RTL8180_TX_DESC_FLAG_NO_ENC = (1 << 15),
- RTL8180_TX_DESC_FLAG_TX_OK = (1 << 15),
- RTL8180_TX_DESC_FLAG_SPLCP = (1 << 16),
- RTL8180_TX_DESC_FLAG_RX_UNDER = (1 << 16),
- RTL8180_TX_DESC_FLAG_MOREFRAG = (1 << 17),
- RTL8180_TX_DESC_FLAG_CTS = (1 << 18),
- RTL8180_TX_DESC_FLAG_RTS = (1 << 23),
- RTL8180_TX_DESC_FLAG_LS = (1 << 28),
- RTL8180_TX_DESC_FLAG_FS = (1 << 29),
- RTL8180_TX_DESC_FLAG_DMA = (1 << 30),
- RTL8180_TX_DESC_FLAG_OWN = (1 << 31)
-};
-
struct rtl8180_tx_desc {
__le32 flags;
__le16 rts_duration;
@@ -52,23 +38,6 @@ struct rtl8180_tx_desc {
u32 reserved[2];
} __attribute__ ((packed));

-enum rtl8180_rx_desc_flags {
- RTL8180_RX_DESC_FLAG_ICV_ERR = (1 << 12),
- RTL8180_RX_DESC_FLAG_CRC32_ERR = (1 << 13),
- RTL8180_RX_DESC_FLAG_PM = (1 << 14),
- RTL8180_RX_DESC_FLAG_RX_ERR = (1 << 15),
- RTL8180_RX_DESC_FLAG_BCAST = (1 << 16),
- RTL8180_RX_DESC_FLAG_PAM = (1 << 17),
- RTL8180_RX_DESC_FLAG_MCAST = (1 << 18),
- RTL8180_RX_DESC_FLAG_SPLCP = (1 << 25),
- RTL8180_RX_DESC_FLAG_FOF = (1 << 26),
- RTL8180_RX_DESC_FLAG_DMA_FAIL = (1 << 27),
- RTL8180_RX_DESC_FLAG_LS = (1 << 28),
- RTL8180_RX_DESC_FLAG_FS = (1 << 29),
- RTL8180_RX_DESC_FLAG_EOR = (1 << 30),
- RTL8180_RX_DESC_FLAG_OWN = (1 << 31)
-};
-
struct rtl8180_rx_desc {
__le32 flags;
__le32 flags2;
diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c
index b7172a1..861c76a 100644
--- a/drivers/net/wireless/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl8180_dev.c
@@ -110,12 +110,12 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
u32 flags = le32_to_cpu(entry->flags);

- if (flags & RTL8180_RX_DESC_FLAG_OWN)
+ if (flags & RTL818X_RX_DESC_FLAG_OWN)
return;

- if (unlikely(flags & (RTL8180_RX_DESC_FLAG_DMA_FAIL |
- RTL8180_RX_DESC_FLAG_FOF |
- RTL8180_RX_DESC_FLAG_RX_ERR)))
+ if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
+ RTL818X_RX_DESC_FLAG_FOF |
+ RTL818X_RX_DESC_FLAG_RX_ERR)))
goto done;
else {
u32 flags2 = le32_to_cpu(entry->flags2);
@@ -140,7 +140,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
rx_status.band = dev->conf.channel->band;
rx_status.mactime = le64_to_cpu(entry->tsft);
rx_status.flag |= RX_FLAG_TSFT;
- if (flags & RTL8180_RX_DESC_FLAG_CRC32_ERR)
+ if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;

ieee80211_rx_irqsafe(dev, skb, &rx_status);
@@ -154,10 +154,10 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)

done:
entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
- entry->flags = cpu_to_le32(RTL8180_RX_DESC_FLAG_OWN |
+ entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
MAX_RX_SIZE);
if (priv->rx_idx == 31)
- entry->flags |= cpu_to_le32(RTL8180_RX_DESC_FLAG_EOR);
+ entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
priv->rx_idx = (priv->rx_idx + 1) % 32;
}
}
@@ -173,7 +173,7 @@ static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
struct ieee80211_tx_info *info;
u32 flags = le32_to_cpu(entry->flags);

- if (flags & RTL8180_TX_DESC_FLAG_OWN)
+ if (flags & RTL818X_TX_DESC_FLAG_OWN)
return;

ring->idx = (ring->idx + 1) % ring->entries;
@@ -185,7 +185,7 @@ static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
memset(&info->status, 0, sizeof(info->status));

if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
- if (flags & RTL8180_TX_DESC_FLAG_TX_OK)
+ if (flags & RTL818X_TX_DESC_FLAG_TX_OK)
info->flags |= IEEE80211_TX_STAT_ACK;
else
info->status.excessive_retries = 1;
@@ -252,20 +252,20 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
mapping = pci_map_single(priv->pdev, skb->data,
skb->len, PCI_DMA_TODEVICE);

- tx_flags = RTL8180_TX_DESC_FLAG_OWN | RTL8180_TX_DESC_FLAG_FS |
- RTL8180_TX_DESC_FLAG_LS |
+ tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
+ RTL818X_TX_DESC_FLAG_LS |
(ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
skb->len;

if (priv->r8185)
- tx_flags |= RTL8180_TX_DESC_FLAG_DMA |
- RTL8180_TX_DESC_FLAG_NO_ENC;
+ tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
+ RTL818X_TX_DESC_FLAG_NO_ENC;

if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
- tx_flags |= RTL8180_TX_DESC_FLAG_RTS;
+ tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
- tx_flags |= RTL8180_TX_DESC_FLAG_CTS;
+ tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
}

@@ -446,10 +446,10 @@ static int rtl8180_init_rx_ring(struct ieee80211_hw *dev)
*mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
entry->rx_buf = cpu_to_le32(*mapping);
- entry->flags = cpu_to_le32(RTL8180_RX_DESC_FLAG_OWN |
+ entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
MAX_RX_SIZE);
}
- entry->flags |= cpu_to_le32(RTL8180_RX_DESC_FLAG_EOR);
+ entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
return 0;
}

diff --git a/drivers/net/wireless/rtl8187.h b/drivers/net/wireless/rtl8187.h
index 3afb49f..1f01eed 100644
--- a/drivers/net/wireless/rtl8187.h
+++ b/drivers/net/wireless/rtl8187.h
@@ -56,12 +56,6 @@ struct rtl8187b_rx_hdr {

/* {rtl8187,rtl8187b}_tx_info is in skb */

-/* Tx flags are common between rtl8187 and rtl8187b */
-#define RTL8187_TX_FLAG_NO_ENCRYPT (1 << 15)
-#define RTL8187_TX_FLAG_MORE_FRAG (1 << 17)
-#define RTL8187_TX_FLAG_CTS (1 << 18)
-#define RTL8187_TX_FLAG_RTS (1 << 23)
-
struct rtl8187_tx_hdr {
__le32 flags;
__le16 rts_duration;
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index 25d9a0e..217098b 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -183,18 +183,18 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
}

flags = skb->len;
- flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
+ flags |= RTL818X_TX_DESC_FLAG_NO_ENC;

flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
- flags |= RTL8187_TX_FLAG_MORE_FRAG;
+ flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
- flags |= RTL8187_TX_FLAG_RTS;
+ flags |= RTL818X_TX_DESC_FLAG_RTS;
flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
rts_dur = ieee80211_rts_duration(dev, priv->vif,
skb->len, info);
} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
- flags |= RTL8187_TX_FLAG_CTS;
+ flags |= RTL818X_TX_DESC_FLAG_CTS;
flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
}

@@ -322,7 +322,7 @@ static void rtl8187_rx_cb(struct urb *urb)
rx_status.freq = dev->conf.channel->center_freq;
rx_status.band = dev->conf.channel->band;
rx_status.flag |= RX_FLAG_TSFT;
- if (flags & (1 << 13))
+ if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
ieee80211_rx_irqsafe(dev, skb, &rx_status);

diff --git a/drivers/net/wireless/rtl818x.h b/drivers/net/wireless/rtl818x.h
index 00900fe..3538b15 100644
--- a/drivers/net/wireless/rtl818x.h
+++ b/drivers/net/wireless/rtl818x.h
@@ -193,4 +193,39 @@ struct rtl818x_rf_ops {
void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *);
};

+/* Tx/Rx flags are common between RTL818X chips */
+
+enum rtl818x_tx_desc_flags {
+ RTL818X_TX_DESC_FLAG_NO_ENC = (1 << 15),
+ RTL818X_TX_DESC_FLAG_TX_OK = (1 << 15),
+ RTL818X_TX_DESC_FLAG_SPLCP = (1 << 16),
+ RTL818X_TX_DESC_FLAG_RX_UNDER = (1 << 16),
+ RTL818X_TX_DESC_FLAG_MOREFRAG = (1 << 17),
+ RTL818X_TX_DESC_FLAG_CTS = (1 << 18),
+ RTL818X_TX_DESC_FLAG_RTS = (1 << 23),
+ RTL818X_TX_DESC_FLAG_LS = (1 << 28),
+ RTL818X_TX_DESC_FLAG_FS = (1 << 29),
+ RTL818X_TX_DESC_FLAG_DMA = (1 << 30),
+ RTL818X_TX_DESC_FLAG_OWN = (1 << 31)
+};
+
+enum rtl818x_rx_desc_flags {
+ RTL818X_RX_DESC_FLAG_ICV_ERR = (1 << 12),
+ RTL818X_RX_DESC_FLAG_CRC32_ERR = (1 << 13),
+ RTL818X_RX_DESC_FLAG_PM = (1 << 14),
+ RTL818X_RX_DESC_FLAG_RX_ERR = (1 << 15),
+ RTL818X_RX_DESC_FLAG_BCAST = (1 << 16),
+ RTL818X_RX_DESC_FLAG_PAM = (1 << 17),
+ RTL818X_RX_DESC_FLAG_MCAST = (1 << 18),
+ RTL818X_RX_DESC_FLAG_QOS = (1 << 19), /* RTL8187(B) only */
+ RTL818X_RX_DESC_FLAG_TRSW = (1 << 24), /* RTL8187(B) only */
+ RTL818X_RX_DESC_FLAG_SPLCP = (1 << 25),
+ RTL818X_RX_DESC_FLAG_FOF = (1 << 26),
+ RTL818X_RX_DESC_FLAG_DMA_FAIL = (1 << 27),
+ RTL818X_RX_DESC_FLAG_LS = (1 << 28),
+ RTL818X_RX_DESC_FLAG_FS = (1 << 29),
+ RTL818X_RX_DESC_FLAG_EOR = (1 << 30),
+ RTL818X_RX_DESC_FLAG_OWN = (1 << 31)
+};
+
#endif /* RTL818X_H */
--
1.5.6



--
[]'s
Herton


2008-07-16 06:05:10

by Michael Wu

[permalink] [raw]
Subject: Re: [RFC] Merge tx/rx descriptor flags of rtl818x devices

On Friday 11 July 2008 15:56:39 Herton Ronaldo Krzesinski wrote:
> In rtl818x code tx/rx descriptor flags are common between all devices as
> far as I could check (looking at r8180 specs I found on the web recently
> and on vendor rtl8187b driver). Here is a proposal for merging them:
Go ahead and s/[RFC]/[PATCH]/ if you've made sure the numbers are the same and
tested. This is a good idea.

-Michael Wu


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Subject: [PATCH] Merge tx/rx descriptor flags of rtl818x devices

Em Wednesday 16 July 2008 03:11:18 Michael Wu escreveu:
> On Friday 11 July 2008 15:56:39 Herton Ronaldo Krzesinski wrote:
> > In rtl818x code tx/rx descriptor flags are common between all devices as
> > far as I could check (looking at r8180 specs I found on the web recently
> > and on vendor rtl8187b driver). Here is a proposal for merging them:
> Go ahead and s/[RFC]/[PATCH]/ if you've made sure the numbers are the same and
> tested. This is a good idea.
>
> -Michael Wu
>

Ok, I'll repost the patch soon.

--
[]'s
Herton