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author | Daniel Golle <daniel@makrotopia.org> | 2019-02-13 19:47:18 +0100 |
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committer | Daniel Golle <daniel@makrotopia.org> | 2019-02-19 09:05:34 +0100 |
commit | d4c999bb891725b71ae38416cc6d5cfa99938ae4 (patch) | |
tree | 092236b7f1a2b7c2de42af33619b290c3ea088ec /package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch | |
parent | 331963717bf4781ead1ff03b56de2802b9e05164 (diff) | |
download | upstream-d4c999bb891725b71ae38416cc6d5cfa99938ae4.tar.gz upstream-d4c999bb891725b71ae38416cc6d5cfa99938ae4.tar.bz2 upstream-d4c999bb891725b71ae38416cc6d5cfa99938ae4.zip |
mac80211: rt2x00: backport accepted and pending patches from upstream
backport from wireless-drivers-next, replacing some existing patches in
our tree (marked with '=' are those which were already present):
f483039cf51a rt2x00: use simple_read_from_buffer()
=5c656c71b1bf rt2800: move usb specific txdone/txstatus routines to rt2800lib
=0b0d556e0ebb rt2800mmio: use txdone/txstatus routines from lib
=5022efb50f62 rt2x00: do not check for txstatus timeout every time on tasklet
=adf26a356f13 rt2x00: use different txstatus timeouts when flushing
=0240564430c0 rt2800: flush and txstatus rework for rt2800mmio
6eba8fd22352 rt2x00: rt2400pci: mark expected switch fall-through
10bb92217747 rt2x00: rt2500pci: mark expected switch fall-through
916e6bbcfcff rt2x00: rt2800lib: mark expected switch fall-throughs
641dd8068ecb rt2x00: rt61pci: mark expected switch fall-through
750afb08ca71 cross-tree: phase out dma_zalloc_coherent()
=c2e28ef7711f rt2x00: reduce tx power to nominal level on RT6352
a4296994eb80 rt2x00: Work around a firmware bug with shared keys
2587791d5758 rt2x00: no need to check return value of debugfs_create functions
pending on linux-wireless:
rt2x00: remove unneeded check
rt2x00: remove confusing AGC register
rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band
rt2800: enable TX_PIN_CFG_RFRX_EN only for MT7620
rt2800: comment and simplify AGC init for RT6352
rt2x00: do not print error when queue is full
rt2800: partially restore old mmio txstatus behaviour
rt2800: new flush implementation for SoC devices
rt2800: move txstatus pending routine
rt2800mmio: fetch tx status changes
rt2800mmio: use timer and work for handling tx statuses timeouts
rt2x00: remove last_nostatus_check
rt2x00: remove not used entry field
rt2x00mmio: remove legacy comment
While at it also rename some existing patches now that there are
separate folders with patches for each driver to make things a bit
nicer to handle.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch')
-rw-r--r-- | package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch b/package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch new file mode 100644 index 0000000000..6214ad30db --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/021-rt2800-partially-restore-old-mmio-txstatus-behaviour.patch @@ -0,0 +1,125 @@ +From 91a5340db0526b7263bc8da14b120ea3129b5f28 Mon Sep 17 00:00:00 2001 +From: Stanislaw Gruszka <sgruszka@redhat.com> +Date: Sat, 9 Feb 2019 12:08:31 +0100 +Subject: [PATCH 21/28] rt2800: partially restore old mmio txstatus behaviour + +Do not disable txstatus interrupt and add quota of processed tx statuses in +one tasklet. Quota is needed to allow to fed device with new frames during +processing of tx statuses. + +Patch fixes about 15% performance degradation on some scenarios coused by +0b0d556e0ebb ("rt2800mmio: use txdone/txstatus routines from lib"). + +Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> +--- + .../net/wireless/ralink/rt2x00/rt2800lib.c | 4 +-- + .../net/wireless/ralink/rt2x00/rt2800lib.h | 2 +- + .../net/wireless/ralink/rt2x00/rt2800mmio.c | 30 +++++-------------- + .../net/wireless/ralink/rt2x00/rt2800usb.c | 2 +- + 4 files changed, 12 insertions(+), 26 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -1100,7 +1100,7 @@ void rt2800_txdone_entry(struct queue_en + } + EXPORT_SYMBOL_GPL(rt2800_txdone_entry); + +-void rt2800_txdone(struct rt2x00_dev *rt2x00dev) ++void rt2800_txdone(struct rt2x00_dev *rt2x00dev, unsigned int quota) + { + struct data_queue *queue; + struct queue_entry *entry; +@@ -1108,7 +1108,7 @@ void rt2800_txdone(struct rt2x00_dev *rt + u8 qid; + bool match; + +- while (kfifo_get(&rt2x00dev->txstatus_fifo, ®)) { ++ while (quota-- > 0 && kfifo_get(&rt2x00dev->txstatus_fifo, ®)) { + /* + * TX_STA_FIFO_PID_QUEUE is a 2-bit field, thus qid is + * guaranteed to be one of the TX QIDs . +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h +@@ -195,7 +195,7 @@ void rt2800_process_rxwi(struct queue_en + + void rt2800_txdone_entry(struct queue_entry *entry, u32 status, __le32 *txwi, + bool match); +-void rt2800_txdone(struct rt2x00_dev *rt2x00dev); ++void rt2800_txdone(struct rt2x00_dev *rt2x00dev, unsigned int quota); + void rt2800_txdone_nostatus(struct rt2x00_dev *rt2x00dev); + bool rt2800_txstatus_timeout(struct rt2x00_dev *rt2x00dev); + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c +@@ -255,20 +255,6 @@ void rt2800mmio_autowake_tasklet(unsigne + } + EXPORT_SYMBOL_GPL(rt2800mmio_autowake_tasklet); + +-static void rt2800mmio_txdone(struct rt2x00_dev *rt2x00dev) +-{ +- bool timeout = false; +- +- while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) || +- (timeout = rt2800_txstatus_timeout(rt2x00dev))) { +- +- rt2800_txdone(rt2x00dev); +- +- if (timeout) +- rt2800_txdone_nostatus(rt2x00dev); +- } +-} +- + static bool rt2800mmio_fetch_txstatus(struct rt2x00_dev *rt2x00dev) + { + u32 status; +@@ -305,14 +291,11 @@ void rt2800mmio_txstatus_tasklet(unsigne + { + struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data; + +- do { +- rt2800mmio_txdone(rt2x00dev); ++ rt2800_txdone(rt2x00dev, 16); + +- } while (rt2800mmio_fetch_txstatus(rt2x00dev)); ++ if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo)) ++ tasklet_schedule(&rt2x00dev->txstatus_tasklet); + +- if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) +- rt2800mmio_enable_interrupt(rt2x00dev, +- INT_SOURCE_CSR_TX_FIFO_STATUS); + } + EXPORT_SYMBOL_GPL(rt2800mmio_txstatus_tasklet); + +@@ -339,8 +322,10 @@ irqreturn_t rt2800mmio_interrupt(int irq + mask = ~reg; + + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) { ++ rt2x00_set_field32(&mask, INT_MASK_CSR_TX_FIFO_STATUS, 1); + rt2800mmio_fetch_txstatus(rt2x00dev); +- tasklet_schedule(&rt2x00dev->txstatus_tasklet); ++ if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo)) ++ tasklet_schedule(&rt2x00dev->txstatus_tasklet); + } + + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_PRE_TBTT)) +@@ -500,7 +485,8 @@ void rt2800mmio_flush_queue(struct data_ + */ + if (tx_queue) { + tasklet_disable(&rt2x00dev->txstatus_tasklet); +- rt2800mmio_txdone(rt2x00dev); ++ rt2800_txdone(rt2x00dev, UINT_MAX); ++ rt2800_txdone_nostatus(rt2x00dev); + tasklet_enable(&rt2x00dev->txstatus_tasklet); + } + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800usb.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800usb.c +@@ -480,7 +480,7 @@ static void rt2800usb_work_txdone(struct + while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) || + rt2800_txstatus_timeout(rt2x00dev)) { + +- rt2800_txdone(rt2x00dev); ++ rt2800_txdone(rt2x00dev, UINT_MAX); + + rt2800_txdone_nostatus(rt2x00dev); + |