Drivers can usually handle fragmented packets
much easier when they get the entire list of
fragments at once. The only thing they need to
do is keep enough space on the queues for up
to ten fragments of a single MSDU.

This allows them to implement this with a new
operation tx_frags.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This just prepares for passing the entire fragment
list to the driver. No significant changes, but the
TX throughput is calculated slightly differently
now and we blink only once for each MSDU.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Instead of adjusting the fragment flags at
TX time, adjust them at fragmentation time.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We are currently linking the skbs by using skb->next
directly. This works, but the preferred way is to use
a struct sk_buff_head instead. That also prepares for
passing that to drivers directly.

While at it I noticed we calculate the duration for
fragments twice -- remove one of them.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

DFS events are reported as PHY errors and need to be processed
with a correct timestamp set before ath9k_skb_preprocess() is
called and the frame is possibly dropped.

This patch puts the rxs->mactime calculation before the skb
is preprocessed to prepare for DFS event reporting.
Signed-off-by: NZefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This grants drivers access to the DFS region that a
regulatory domain belongs to.
Signed-off-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The wireless-regdb now has support for mapping a country to
one DFS region. CRDA sends this to us now so process it
so we can provide that hint to drivers. This will later be
used by code for processing DFS in a way that meets the
criteria for the DFS region the country belongs to.
Signed-off-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch supports Marvell chipset 88W8797 (Avastar) with
SDIO interface.

The corresponding firmware image file is located at:
"mrvl/sd8797_uapsta.bin"
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NTristan Xu <xurf@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKiran Divekar <dkiran@marvell.com>
Signed-off-by: NFrank Huang <frankh@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Don't use the interruptible variant of mutex_lock(). It doesn't really
need to be interruptible. This avoids nasty error handling.
Signed-off-by: NMichael Buesch <m@bues.ch>
Acked-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Some drivers (e.g. ath9k) assume that it's safe to go into low-power mode
immediately after the idle state changes. To support that, mac80211 even
calls drv_flush() before that happens.
In some instances, mac80211 sent a packet right after recalculating the
idle state, this patch fixes that.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Convert various seemingly still compiled wireless drivers' .get_drvinfo
routines to use the preferred strlcpy() routine.
Signed-off-by: NRick Jones <rick.jones2@hp.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove unused function parameters in the following functions:
minstrel_calc_rate_ewma()
minstrel_ht_calc_tp()
minstrel_aggr_check()
minstrel_ht_set_rate()
Signed-off-by: NPatrick Kelle <patrick.kelle81@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We recently introduced a return here, but we need to call kfree
first.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

sk_buff structs should be freed using kfree_skb().

This was introduced recently in 02945821 "mac80211: Save probe
response data for bss".
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Finding the group index for a specific rate is done by looping through
all groups and returning if the correct one is found. This code is
called for each tx'ed frame and thus it makes sense to reduce its
runtime.

Do this by calculating the group index by this formula based on the SGI
and HT40 flags as well as the stream number:

idx = (HT40 * 2 * MINSTREL_MAX_STREAMS) +
      (SGI * MINSTREL_MAX_STREAMS) +
      (streams - 1)

Hence, the groups are ordered by th HT40 flag first, then by the SGI
flag and afterwards by the number of used streams.

This should reduce the runtime of minstrel_ht_get_group_idx
considerable.
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Acked-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The drivers are not required to fill in rate->count if rate->idx is set
to -1. Hence, we should first check rate->idx before accessing
rate->count.
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Acked-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The shared key authentication frame that needs to be
encrypted (the third one in the shared key handshake)
is directly encrypted in ieee80211_send_auth and the
IEEE80211_TX_INTFL_DONT_ENCRYPT is set. All others
are not encrypted, so the only way to get to this is
erroneously on no-monitor AP side.

Remove the special case for authentication frames to
fix the AP shared key side when operating without
cooked monitor interfaces -- with cooked monitor the
IEEE80211_TX_INTFL_DONT_ENCRYPT also gets set, so we
never get here -- an AP never encrypts auth frames.

Without this patch, an AP operating in WEP mode with
my no-monitor patches would erroneously encrypt all
authentication frames, instead of none.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add and use pr_fmt and pr_<level>
Remove useless double parentheses from macros.
Remove function names from format strings, add to pr_debug use.
Coalesce formats.
Remove uncompileable undeclared variable in a DMA_NONE use.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix indentation in nci.h file.
Signed-off-by: NIlan Elias <ilane@ti.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove all wlan weight macros and group it together for better
understanding & readability. It makes the code reusable for
AR9462 wlan weights.
Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes btcoex_enable from stomp type change and let
it be called from callee functions that makes the code can be
reusable for MCI changes.
Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Only setup structs related to debugfs_ops when CONFIG_IWLEGACY_DEBUGFS is set.
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

1) remove ret local var and return the result directly
2) remove il since it is not used
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

1) don't return rate from il4965_rs_update_rate_tbl
2) fix up il4965_rs_rate_scale_perform
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

remove the lq_sta local variable and return the
result directly in il4965_rs_alloc_sta
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

both sta and lq_sta are guaranteed to be not null in the calling
function so we don't need to check them here.
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

the null check on sta in il4965_rs_tx_status is not necessary
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

remove null check on vif in il4965_request_scan
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

This message should be a debug message and not an error.
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

This message should be a debug message and not a warning.
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Fix most checkpatch.pl ERRORs and some WARNINGs.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Process iwlegacy source files using:

indent -npro -l500 -nhnl
indent -npro -kr -i8 -ts8 -sob -l80 -nbbo -ss -ncs -cp1 -il0 -psl

Plus manual compilation fixes.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>