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| author | David Sterba <dsterba@suse.cz> | 2008-07-28 16:53:32 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 08:28:03 -0700 |
| commit | a01386924874c4d6d67f8a34e66f04452c2abb69 (patch) | |
| tree | c412347f001f7d84c23ffc8d88f14479d999dfd4 /drivers/char/pcmcia | |
| parent | 0f38c47a545d36da4038fec0708e6e3fbdb160b1 (diff) | |
| download | linux-a01386924874c4d6d67f8a34e66f04452c2abb69.tar.gz linux-a01386924874c4d6d67f8a34e66f04452c2abb69.tar.bz2 linux-a01386924874c4d6d67f8a34e66f04452c2abb69.zip | |
ipwireless: Preallocate received packet buffers with MRU size
ipwireless: Preallocate received packet buffers with MRU size
Packets are assembled from link size (~300 bytes) up to PPP MRU
(1500 by default). Try to preallocate full size rather than
repeatedly advance buffer size by 256 bytes.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/pcmcia')
| -rw-r--r-- | drivers/char/pcmcia/ipwireless/hardware.c | 3 | ||||
| -rw-r--r-- | drivers/char/pcmcia/ipwireless/network.c | 5 | ||||
| -rw-r--r-- | drivers/char/pcmcia/ipwireless/network.h | 1 |
3 files changed, 8 insertions, 1 deletions
diff --git a/drivers/char/pcmcia/ipwireless/hardware.c b/drivers/char/pcmcia/ipwireless/hardware.c index d1e69de19156..7d500f82195a 100644 --- a/drivers/char/pcmcia/ipwireless/hardware.c +++ b/drivers/char/pcmcia/ipwireless/hardware.c @@ -567,7 +567,8 @@ static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw, spin_unlock_irqrestore(&hw->lock, flags); list_del(&packet->queue); } else { - static int min_capacity = 256; + const int min_capacity = + ipwireless_ppp_mru(hw->network + 2); int new_capacity; spin_unlock_irqrestore(&hw->lock, flags); diff --git a/drivers/char/pcmcia/ipwireless/network.c b/drivers/char/pcmcia/ipwireless/network.c index 2b07af05106d..590762a7f217 100644 --- a/drivers/char/pcmcia/ipwireless/network.c +++ b/drivers/char/pcmcia/ipwireless/network.c @@ -499,3 +499,8 @@ int ipwireless_ppp_unit_number(struct ipw_network *network) return ret; } + +int ipwireless_ppp_mru(const struct ipw_network *network) +{ + return network->mru; +} diff --git a/drivers/char/pcmcia/ipwireless/network.h b/drivers/char/pcmcia/ipwireless/network.h index ccacd26fc7ef..561f765b3334 100644 --- a/drivers/char/pcmcia/ipwireless/network.h +++ b/drivers/char/pcmcia/ipwireless/network.h @@ -48,5 +48,6 @@ void ipwireless_ppp_open(struct ipw_network *net); void ipwireless_ppp_close(struct ipw_network *net); int ipwireless_ppp_channel_index(struct ipw_network *net); int ipwireless_ppp_unit_number(struct ipw_network *net); +int ipwireless_ppp_mru(const struct ipw_network *net); #endif |