From 87d5efbbd6b6df6111404f9c12ad1b9a957498c5 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Thu, 15 Apr 2010 17:38:43 -0400 Subject: [PATCH] ath9k_hw: Add abstraction to set/get link pointer Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_mac.c | 12 ++++++++++++ drivers/net/wireless/ath/ath9k/hw-ops.h | 11 +++++++++++ drivers/net/wireless/ath/ath9k/hw.h | 2 ++ drivers/net/wireless/ath/ath9k/mac.c | 13 +++++++++++++ drivers/net/wireless/ath/ath9k/xmit.c | 7 ++++--- 5 files changed, 42 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c index 20890060ee2c..f28adb23ac83 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c @@ -20,11 +20,23 @@ static void ar9003_hw_rx_enable(struct ath_hw *hw) REG_WRITE(hw, AR_CR, 0); } +static void ar9003_hw_set_desc_link(void *ds, u32 ds_link) +{ + ((struct ar9003_txc *) ds)->link = ds_link; +} + +static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link) +{ + *ds_link = &((struct ar9003_txc *) ds)->link; +} + void ar9003_hw_attach_mac_ops(struct ath_hw *hw) { struct ath_hw_ops *ops = ath9k_hw_ops(hw); ops->rx_enable = ar9003_hw_rx_enable; + ops->set_desc_link = ar9003_hw_set_desc_link; + ops->get_desc_link = ar9003_hw_get_desc_link; } void ath9k_hw_set_rx_bufsize(struct ath_hw *ah, u16 buf_size) diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h index 08a51a267681..a7701079a88a 100644 --- a/drivers/net/wireless/ath/ath9k/hw-ops.h +++ b/drivers/net/wireless/ath/ath9k/hw-ops.h @@ -33,6 +33,17 @@ static inline void ath9k_hw_rxena(struct ath_hw *ah) ath9k_hw_ops(ah)->rx_enable(ah); } +static inline void ath9k_hw_set_desc_link(struct ath_hw *ah, void *ds, + u32 link) +{ + ath9k_hw_ops(ah)->set_desc_link(ds, link); +} + +static inline void ath9k_hw_get_desc_link(struct ath_hw *ah, void *ds, + u32 **link) +{ + ath9k_hw_ops(ah)->get_desc_link(ds, link); +} /* Private hardware call ops */ /* PHY ops */ diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index ce9d12bd1759..c02f46e4a9b8 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -526,6 +526,8 @@ struct ath_hw_ops { int restore, int power_off); void (*rx_enable)(struct ath_hw *ah); + void (*set_desc_link)(void *ds, u32 link); + void (*get_desc_link)(void *ds, u32 **link); }; struct ath_hw { diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 0c9c378616c6..a8dab23622f1 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -21,12 +21,25 @@ static void ar9002_hw_rx_enable(struct ath_hw *ah) REG_WRITE(ah, AR_CR, AR_CR_RXE); } +static void ar9002_hw_set_desc_link(void *ds, u32 ds_link) +{ + ((struct ath_desc *) ds)->ds_link = ds_link; +} + +static void ar9002_hw_get_desc_link(void *ds, u32 **ds_link) +{ + *ds_link = &((struct ath_desc *)ds)->ds_link; +} + void ar9002_hw_attach_mac_ops(struct ath_hw *ah) { struct ath_hw_ops *ops = ath9k_hw_ops(ah); ops->rx_enable = ar9002_hw_rx_enable; + ops->set_desc_link = ar9002_hw_set_desc_link; + ops->get_desc_link = ar9002_hw_get_desc_link; } + static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah, struct ath9k_tx_queue_info *qi) { diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 7219e2927705..4f12de99492d 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -665,7 +665,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc, bpad = PADBYTES(al_delta) + (ndelim << 2); bf->bf_next = NULL; - bf->bf_desc->ds_link = 0; + ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, 0); /* link buffers of this frame to the aggregate */ ath_tx_addto_baw(sc, tid, bf); @@ -673,7 +673,8 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc, list_move_tail(&bf->list, bf_q); if (bf_prev) { bf_prev->bf_next = bf; - bf_prev->bf_desc->ds_link = bf->bf_daddr; + ath9k_hw_set_desc_link(sc->sc_ah, bf_prev->bf_desc, + bf->bf_daddr); } bf_prev = bf; @@ -1659,7 +1660,7 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, list_add_tail(&bf->list, &bf_head); ds = bf->bf_desc; - ds->ds_link = 0; + ath9k_hw_set_desc_link(ah, ds, 0); ath9k_hw_set11n_txdesc(ah, ds, bf->bf_frmlen, frm_type, MAX_RATE_POWER, bf->bf_keyix, bf->bf_keytype, bf->bf_flags); -- 2.30.2