diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-hw.h | 38 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 21 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000-hw.h | 29 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 52 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-fh.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-helpers.h | 102 |
6 files changed, 62 insertions, 185 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h index b66dd093084..f3f41a6a7c8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h @@ -111,7 +111,6 @@ #define PCI_CFG_CMD_REG_INT_DIS_MSK 0x04 #define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000) -#define TFD_QUEUE_SIZE_MAX (256) #define IWL_NUM_SCAN_RATES (2) @@ -815,8 +814,6 @@ enum { * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array * in DRAM containing 256 Transmit Frame Descriptors (TFDs). */ -#define IWL49_MAX_WIN_SIZE 64 -#define IWL49_QUEUE_SIZE 256 #define IWL49_NUM_FIFOS 7 #define IWL49_CMD_FIFO_NUM 4 #define IWL49_NUM_QUEUES 16 @@ -882,26 +879,7 @@ struct iwl_tfd { /** - * struct iwl4965_queue_byte_cnt_entry - * - * Byte Count Table Entry - * - * Bit fields: - * 15-12: reserved - * 11- 0: total to-be-transmitted byte count of frame (does not include command) - */ -struct iwl4965_queue_byte_cnt_entry { - __le16 val; - /* __le16 byte_cnt:12; */ -#define IWL_byte_cnt_POS 0 -#define IWL_byte_cnt_LEN 12 -#define IWL_byte_cnt_SYM val - /* __le16 rsvd:4; */ -} __attribute__ ((packed)); - - -/** - * struct iwl4965_sched_queue_byte_cnt_tbl + * struct iwl4965_schedq_bc_tbl * * Byte Count table * @@ -915,15 +893,12 @@ struct iwl4965_queue_byte_cnt_entry { * count table for the chosen Tx queue. If the TFD index is 0-63, the driver * must duplicate the byte count entry in corresponding index 256-319. * - * "dont_care" padding puts each byte count table on a 1024-byte boundary; + * padding puts each byte count table on a 1024-byte boundary; * 4965 assumes tables are separated by 1024 bytes. */ -struct iwl4965_sched_queue_byte_cnt_tbl { - struct iwl4965_queue_byte_cnt_entry tfd_offset[IWL49_QUEUE_SIZE + - IWL49_MAX_WIN_SIZE]; - u8 dont_care[1024 - - (IWL49_QUEUE_SIZE + IWL49_MAX_WIN_SIZE) * - sizeof(__le16)]; +struct iwl4965_schedq_bc_tbl { + __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; + u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)]; } __attribute__ ((packed)); @@ -951,8 +926,7 @@ struct iwl4965_sched_queue_byte_cnt_tbl { * 31- 0: Not used */ struct iwl4965_shared { - struct iwl4965_sched_queue_byte_cnt_tbl - queues_byte_cnt_tbls[IWL49_NUM_QUEUES]; + struct iwl4965_schedq_bc_tbl queues_bc_tbls[IWL49_NUM_QUEUES]; __le32 rb_closed; /* __le32 rb_closed_stts_rb_num:12; */ diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index aad32a3ffd1..1f22140bec1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -716,7 +716,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv) /* Tel 4965 where to find Tx byte count tables */ iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR, (priv->shared_phys + - offsetof(struct iwl4965_shared, queues_byte_cnt_tbls)) >> 10); + offsetof(struct iwl4965_shared, queues_bc_tbls)) >> 10); /* Disable chain mode for all queues */ iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0); @@ -1668,21 +1668,22 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq, u16 byte_cnt) { - int len; - int txq_id = txq->q.id; struct iwl4965_shared *shared_data = priv->shared_virt; + int txq_id = txq->q.id; + int write_ptr = txq->q.write_ptr; + int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; + __le16 bc_ent; - len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; + WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); + bc_ent = cpu_to_le16(len & 0xFFF); /* Set up byte count within first 256 entries */ - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[txq->q.write_ptr], byte_cnt, len); + shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent; /* If within first 64 entries, duplicate at end */ - if (txq->q.write_ptr < IWL49_MAX_WIN_SIZE) - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[IWL49_QUEUE_SIZE + txq->q.write_ptr], - byte_cnt, len); + if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) + shared_data->queues_bc_tbls[txq_id]. + tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; } /** diff --git a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h index fa0644321e4..49ede54bfad 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h @@ -76,30 +76,31 @@ /* EERPROM */ #define IWL_5000_EEPROM_IMG_SIZE 2048 - -#define IWL50_MAX_WIN_SIZE 64 -#define IWL50_QUEUE_SIZE 256 #define IWL50_CMD_FIFO_NUM 7 #define IWL50_NUM_QUEUES 20 #define IWL50_NUM_AMPDU_QUEUES 10 #define IWL50_FIRST_AMPDU_QUEUE 10 -#define IWL_sta_id_POS 12 -#define IWL_sta_id_LEN 4 -#define IWL_sta_id_SYM val - /* Fixed (non-configurable) rx data from phy */ -/* Base physical address of iwl5000_shared is provided to SCD_DRAM_BASE_ADDR - * and &iwl5000_shared.val0 is provided to FH_RSCSR_CHNL0_STTS_WPTR_REG */ -struct iwl5000_sched_queue_byte_cnt_tbl { - struct iwl4965_queue_byte_cnt_entry tfd_offset[IWL50_QUEUE_SIZE + - IWL50_MAX_WIN_SIZE]; +/** + * struct iwl5000_schedq_bc_tbl scheduler byte count table + * base physical address of iwl5000_shared + * is provided to SCD_DRAM_BASE_ADDR + * @tfd_offset 0-12 - tx command byte count + * 12-16 - station index + */ +struct iwl5000_schedq_bc_tbl { + __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; } __attribute__ ((packed)); +/** + * struct iwl5000_shared + * @rb_closed + * address is provided to FH_RSCSR_CHNL0_STTS_WPTR_REG + */ struct iwl5000_shared { - struct iwl5000_sched_queue_byte_cnt_tbl - queues_byte_cnt_tbls[IWL50_NUM_QUEUES]; + struct iwl5000_schedq_bc_tbl queues_bc_tbls[IWL50_NUM_QUEUES]; __le32 rb_closed; /* __le32 rb_closed_stts_rb_num:12; */ diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index b4b7e8b2a42..0c9281e9f2a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -723,7 +723,7 @@ static int iwl5000_alive_notify(struct iwl_priv *priv) iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR, (priv->shared_phys + - offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10); + offsetof(struct iwl5000_shared, queues_bc_tbls)) >> 10); iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, IWL50_SCD_QUEUECHAIN_SEL_ALL( priv->hw_params.max_txq_num)); @@ -891,15 +891,17 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, u16 byte_cnt) { struct iwl5000_shared *shared_data = priv->shared_virt; + int write_ptr = txq->q.write_ptr; int txq_id = txq->q.id; u8 sec_ctl = 0; - u8 sta = 0; - int len; + u8 sta_id = 0; + u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; + __le16 bc_ent; - len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; + WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); if (txq_id != IWL_CMD_QUEUE_NUM) { - sta = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; + sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl; switch (sec_ctl & TX_CMD_SEC_MSK) { @@ -915,40 +917,36 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, } } - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[txq->q.write_ptr], byte_cnt, len); + bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12)); - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[txq->q.write_ptr], sta_id, sta); + shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent; - if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], - byte_cnt, len); - IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], - sta_id, sta); - } + if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP) + shared_data->queues_bc_tbls[txq_id]. + tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; } static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - int txq_id = txq->q.id; struct iwl5000_shared *shared_data = priv->shared_virt; - u8 sta = 0; + int txq_id = txq->q.id; + int read_ptr = txq->q.read_ptr; + u8 sta_id = 0; + __le16 bc_ent; + + WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX); if (txq_id != IWL_CMD_QUEUE_NUM) - sta = txq->cmd[txq->q.read_ptr]->cmd.tx.sta_id; + sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; - shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr]. - val = cpu_to_le16(1 | (sta << 12)); + bc_ent = cpu_to_le16(1 | (sta_id << 12)); + shared_data->queues_bc_tbls[txq_id]. + tfd_offset[read_ptr] = bc_ent; - if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { - shared_data->queues_byte_cnt_tbls[txq_id]. - tfd_offset[IWL50_QUEUE_SIZE + txq->q.read_ptr]. - val = cpu_to_le16(1 | (sta << 12)); - } + if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP) + shared_data->queues_bc_tbls[txq_id]. + tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent; } static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h index 8c48d887021..f2688d55183 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/iwlwifi/iwl-fh.h @@ -393,4 +393,9 @@ /* TCSR: tx_config register values */ #define FH_RSCSR_FRAME_SIZE_MSK (0x00003FFF) /* bits 0-13 */ +#define TFD_QUEUE_SIZE_MAX (256) +#define TFD_QUEUE_SIZE_BC_DUP (64) +#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP) + + #endif /* !__iwl_fh_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h index 029d19c7075..4f0fa215d32 100644 --- a/drivers/net/wireless/iwlwifi/iwl-helpers.h +++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h @@ -32,108 +32,6 @@ #include <linux/ctype.h> -/* - * The structures defined by the hardware/uCode interface - * have bit-wise operations. For each bit-field there is - * a data symbol in the structure, the start bit position - * and the length of the bit-field. - * - * iwl_get_bits and iwl_set_bits will return or set the - * appropriate bits on a 32-bit value. - * - * IWL_GET_BITS and IWL_SET_BITS use symbol expansion to - * expand out to the appropriate call to iwl_get_bits - * and iwl_set_bits without having to reference all of the - * numerical constants and defines provided in the hardware - * definition - */ - -/** - * iwl_get_bits - Extract a hardware bit-field value - * @src: source hardware value (__le32) - * @pos: bit-position (0-based) of first bit of value - * @len: length of bit-field - * - * iwl_get_bits will return the bit-field in cpu endian ordering. - * - * NOTE: If used from IWL_GET_BITS then pos and len are compile-constants and - * will collapse to minimal code by the compiler. - */ -static inline u32 iwl_get_bits(__le32 src, u8 pos, u8 len) -{ - u32 tmp = le32_to_cpu(src); - - tmp >>= pos; - tmp &= (1UL << len) - 1; - return tmp; -} - -/** - * iwl_set_bits - Set a hardware bit-field value - * @dst: Address of __le32 hardware value - * @pos: bit-position (0-based) of first bit of value - * @len: length of bit-field - * @val: cpu endian value to encode into the bit-field - * - * iwl_set_bits will encode val into dst, masked to be len bits long at bit - * position pos. - * - * NOTE: If used IWL_SET_BITS pos and len will be compile-constants and - * will collapse to minimal code by the compiler. - */ -static inline void iwl_set_bits(__le32 *dst, u8 pos, u8 len, int val) -{ - u32 tmp = le32_to_cpu(*dst); - - tmp &= ~(((1UL << len) - 1) << pos); - tmp |= (val & ((1UL << len) - 1)) << pos; - *dst = cpu_to_le32(tmp); -} - -static inline void iwl_set_bits16(__le16 *dst, u8 pos, u8 len, int val) -{ - u16 tmp = le16_to_cpu(*dst); - - tmp &= ~((1UL << (pos + len)) - (1UL << pos)); - tmp |= (val & ((1UL << len) - 1)) << pos; - *dst = cpu_to_le16(tmp); -} - -/* - * The bit-field definitions in iwl-xxxx-hw.h are in the form of: - * - * struct example { - * __le32 val1; - * #define IWL_name_POS 8 - * #define IWL_name_LEN 4 - * #define IWL_name_SYM val1 - * }; - * - * The IWL_SET_BITS and IWL_GET_BITS macros are provided to allow the driver - * to call: - * - * struct example bar; - * u32 val = IWL_GET_BITS(bar, name); - * val = val * 2; - * IWL_SET_BITS(bar, name, val); - * - * All cpu / host ordering, masking, and shifts are performed by the macros - * and iwl_{get,set}_bits. - * - */ -#define IWL_SET_BITS(s, sym, v) \ - iwl_set_bits(&(s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \ - IWL_ ## sym ## _LEN, (v)) - -#define IWL_SET_BITS16(s, sym, v) \ - iwl_set_bits16(&(s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \ - IWL_ ## sym ## _LEN, (v)) - -#define IWL_GET_BITS(s, sym) \ - iwl_get_bits((s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \ - IWL_ ## sym ## _LEN) - - #define KELVIN_TO_CELSIUS(x) ((x)-273) #define CELSIUS_TO_KELVIN(x) ((x)+273) #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) |