Page MenuHomeFreeBSD
Differential D6211 Diff 15908 sys/dev/ixl/i40e_lan_hmc.c

Changeset View

Standalone View

View Options

sys/dev/ixl/i40e_lan_hmc.c

Show First 20 Lines • Show All 764 Lines • ▼ Show 20 Linesstatic void i40e_write_byte(u8 *hmc_bits,
u8 *from, *dest; u8 *from, *dest;
u16 shift_width; u16 shift_width;
/* copy from the next struct field */ /* copy from the next struct field */
from = src + ce_info->offset; from = src + ce_info->offset;
/* prepare the bits and mask */ /* prepare the bits and mask */
shift_width = ce_info->lsb % 8; shift_width = ce_info->lsb % 8;
mask = BIT(ce_info->width) - 1; mask = (u8)(BIT(ce_info->width) - 1);
src_byte = *from; src_byte = *from;
src_byte &= mask; src_byte &= mask;
/* shift to correct alignment */ /* shift to correct alignment */
mask <<= shift_width; mask <<= shift_width;
src_byte <<= shift_width; src_byte <<= shift_width;
▲ Show 20 Lines • Show All 168 Lines • ▼ Show 20 Linesstatic void i40e_read_byte(u8 *hmc_bits,
u8 *dest) u8 *dest)
{ {
u8 dest_byte, mask; u8 dest_byte, mask;
u8 *src, *target; u8 *src, *target;
u16 shift_width; u16 shift_width;
/* prepare the bits and mask */ /* prepare the bits and mask */
shift_width = ce_info->lsb % 8; shift_width = ce_info->lsb % 8;
mask = BIT(ce_info->width) - 1; mask = (u8)(BIT(ce_info->width) - 1);
/* shift to correct alignment */ /* shift to correct alignment */
mask <<= shift_width; mask <<= shift_width;
/* get the current bits from the src bit string */ /* get the current bits from the src bit string */
src = hmc_bits + (ce_info->lsb / 8); src = hmc_bits + (ce_info->lsb / 8);
i40e_memcpy(&dest_byte, src, sizeof(dest_byte), I40E_DMA_TO_NONDMA); i40e_memcpy(&dest_byte, src, sizeof(dest_byte), I40E_DMA_TO_NONDMA);
▲ Show 20 Lines • Show All 446 Lines • Show Last 20 Lines