This driver uses a set of local macros to manipulate the RX and TX descriptors, which are all little-endian quantities. These macros are replaced by the bitfield macros le32p_replace_bits() and le32_get_bits(). In several places, the macros operated on an entire 32-bit word. In these cases, a direct read or replacement is used. Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> --- .../wireless/realtek/rtlwifi/rtl8192ce/trx.h | 146 ++++++++---------- 1 file changed, 62 insertions(+), 84 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.h b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.h index 37e40f44c347..f4dbeeda062f 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.h +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.h @@ -14,172 +14,150 @@ #define USB_HWDESC_HEADER_LEN 32 #define CRCLENGTH 4 -/* Define a macro that takes a le32 word, converts it to host ordering, - * right shifts by a specified count, creates a mask of the specified - * bit count, and extracts that number of bits. - */ - -#define SHIFT_AND_MASK_LE(__pdesc, __shift, __mask) \ - ((le32_to_cpu(*(((__le32 *)(__pdesc)))) >> (__shift)) & \ - BIT_LEN_MASK_32(__mask)) - -/* Define a macro that clears a bit field in an le32 word and - * sets the specified value into that bit field. The resulting - * value remains in le32 ordering; however, it is properly converted - * to host ordering for the clear and set operations before conversion - * back to le32. - */ - -#define SET_BITS_OFFSET_LE(__pdesc, __shift, __len, __val) \ - (*(__le32 *)(__pdesc) = \ - (cpu_to_le32((le32_to_cpu(*((__le32 *)(__pdesc))) & \ - (~(BIT_OFFSET_LEN_MASK_32((__shift), __len)))) | \ - (((u32)(__val) & BIT_LEN_MASK_32(__len)) << (__shift))))); - /* macros to read/write various fields in RX or TX descriptors */ #define SET_TX_DESC_PKT_SIZE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 0, 16, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, GENMASK(15, 0)) #define SET_TX_DESC_OFFSET(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 16, 8, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, GENMASK(23, 16)) #define SET_TX_DESC_BMC(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 24, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(24)) #define SET_TX_DESC_HTC(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 25, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(25)) #define SET_TX_DESC_LAST_SEG(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 26, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(26)) #define SET_TX_DESC_FIRST_SEG(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 27, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(27)) #define SET_TX_DESC_LINIP(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 28, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(28)) #define SET_TX_DESC_OWN(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 31, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(31)) #define GET_TX_DESC_OWN(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 31, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(31)) #define SET_TX_DESC_MACID(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 0, 5, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, GENMASK(4, 0)) #define SET_TX_DESC_AGG_BREAK(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 5, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, BIT(5)) #define SET_TX_DESC_RDG_ENABLE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 7, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, BIT(7)) #define SET_TX_DESC_QUEUE_SEL(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 8, 5, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, GENMASK(12, 8)) #define SET_TX_DESC_RATE_ID(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 16, 4, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, GENMASK(19, 16)) #define SET_TX_DESC_SEC_TYPE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+4, 22, 2, __val) + le32p_replace_bits((__le32 *)(__pdesc + 4), __val, GENMASK(23, 22)) #define SET_TX_DESC_MORE_FRAG(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+8, 17, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 8), __val, BIT(17)) #define SET_TX_DESC_AMPDU_DENSITY(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+8, 20, 3, __val) + le32p_replace_bits((__le32 *)(__pdesc + 8), __val, GENMASK(22, 20)) #define SET_TX_DESC_SEQ(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+12, 16, 12, __val) + le32p_replace_bits((__le32 *)(__pdesc + 12), __val, GENMASK(27, 16)) #define SET_TX_DESC_PKT_ID(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+12, 28, 4, __val) + le32p_replace_bits((__le32 *)(__pdesc + 12), __val, GENMASK(31, 28)) #define SET_TX_DESC_RTS_RATE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 0, 5, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, GENMASK(4, 0)) #define SET_TX_DESC_QOS(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 6, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(6)) #define SET_TX_DESC_HWSEQ_EN(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 7, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(7)) #define SET_TX_DESC_USE_RATE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 8, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(8)) #define SET_TX_DESC_DISABLE_FB(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 10, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(10)) #define SET_TX_DESC_CTS2SELF(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 11, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(11)) #define SET_TX_DESC_RTS_ENABLE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 12, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(12)) #define SET_TX_DESC_HW_RTS_ENABLE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 13, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(13)) #define SET_TX_DESC_TX_SUB_CARRIER(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 20, 2, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, GENMASK(21, 20)) #define SET_TX_DESC_DATA_BW(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 25, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(25)) #define SET_TX_DESC_RTS_SHORT(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 26, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(26)) #define SET_TX_DESC_RTS_BW(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 27, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, BIT(27)) #define SET_TX_DESC_RTS_SC(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 28, 2, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, GENMASK(29, 28)) #define SET_TX_DESC_RTS_STBC(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+16, 30, 2, __val) + le32p_replace_bits((__le32 *)(__pdesc + 16), __val, GENMASK(31, 30)) #define SET_TX_DESC_TX_RATE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+20, 0, 6, __val) + le32p_replace_bits((__le32 *)(__pdesc + 20), __val, GENMASK(5, 0)) #define SET_TX_DESC_DATA_SHORTGI(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+20, 6, 1, __val) + le32p_replace_bits((__le32 *)(__pdesc + 20), __val, BIT(6)) #define SET_TX_DESC_DATA_RATE_FB_LIMIT(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+20, 8, 5, __val) + le32p_replace_bits((__le32 *)(__pdesc + 20), __val, GENMASK(12, 8)) #define SET_TX_DESC_RTS_RATE_FB_LIMIT(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+20, 13, 4, __val) + le32p_replace_bits((__le32 *)(__pdesc + 20), __val, GENMASK(16, 13)) #define SET_TX_DESC_MAX_AGG_NUM(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+24, 11, 5, __val) + le32p_replace_bits((__le32 *)(__pdesc + 24), __val, GENMASK(15, 11)) #define SET_TX_DESC_TX_BUFFER_SIZE(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+28, 0, 16, __val) + le32p_replace_bits((__le32 *)(__pdesc + 28), __val, GENMASK(15, 0)) #define SET_TX_DESC_TX_BUFFER_ADDRESS(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+32, 0, 32, __val) + *(__le32 *)(__pdesc + 32) = cpu_to_le32(__val) #define GET_TX_DESC_TX_BUFFER_ADDRESS(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+32, 0, 32) + le32_to_cpu(*((__le32 *)(__pdesc + 32))) #define SET_TX_DESC_NEXT_DESC_ADDRESS(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+40, 0, 32, __val) + *(__le32 *)(__pdesc + 40) = cpu_to_le32(__val) #define GET_RX_DESC_PKT_LEN(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 0, 14) + le32_get_bits(*((__le32 *)__pdesc), GENMASK(13, 0)) #define GET_RX_DESC_CRC32(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 14, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(14)) #define GET_RX_DESC_ICV(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 15, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(15)) #define GET_RX_DESC_DRV_INFO_SIZE(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 16, 4) + le32_get_bits(*((__le32 *)__pdesc), GENMASK(19, 16)) #define GET_RX_DESC_SHIFT(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 24, 2) + le32_get_bits(*((__le32 *)__pdesc), GENMASK(25, 24)) #define GET_RX_DESC_PHYST(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 26, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(26)) #define GET_RX_DESC_SWDEC(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 27, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(27)) #define GET_RX_DESC_OWN(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc, 31, 1) + le32_get_bits(*((__le32 *)__pdesc), BIT(31)) #define SET_RX_DESC_PKT_LEN(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 0, 14, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, GENMASK(13, 0)) #define SET_RX_DESC_EOR(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 30, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(30)) #define SET_RX_DESC_OWN(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc, 31, 1, __val) + le32p_replace_bits((__le32 *)__pdesc, __val, BIT(31)) #define GET_RX_DESC_PAGGR(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+4, 14, 1) + le32_get_bits(*((__le32 *)(__pdesc + 4)), BIT(14)) #define GET_RX_DESC_FAGGR(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+4, 15, 1) + le32_get_bits(*((__le32 *)(__pdesc + 4)), BIT(15)) #define GET_RX_DESC_RXMCS(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+12, 0, 6) + le32_get_bits(*((__le32 *)(__pdesc + 12)), GENMASK(5, 0)) #define GET_RX_DESC_RXHT(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+12, 6, 1) + le32_get_bits(*((__le32 *)(__pdesc + 12)), BIT(6)) #define GET_RX_DESC_SPLCP(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+12, 8, 1) + le32_get_bits(*((__le32 *)(__pdesc + 12)), BIT(8)) #define GET_RX_DESC_BW(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+12, 9, 1) + le32_get_bits(*((__le32 *)(__pdesc + 12)), BIT(9)) #define GET_RX_DESC_TSFL(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+20, 0, 32) + le32_to_cpu(*((__le32 *)(__pdesc + 20))) #define GET_RX_DESC_BUFF_ADDR(__pdesc) \ - SHIFT_AND_MASK_LE(__pdesc+24, 0, 32) + le32_to_cpu(*((__le32 *)(__pdesc + 24))) #define SET_RX_DESC_BUFF_ADDR(__pdesc, __val) \ - SET_BITS_OFFSET_LE(__pdesc+24, 0, 32, __val) + *(__le32 *)(__pdesc + 24) = cpu_to_le32(__val) #define CLEAR_PCI_TX_DESC_CONTENT(__pdesc, _size) \ memset(__pdesc, 0, min_t(size_t, _size, TX_DESC_NEXT_DESC_OFFSET)) -- 2.22.0
