diff options
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c index 55c7f9985692..bd9e5a598657 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c @@ -682,6 +682,46 @@ static int hw_atl_b0_hw_ring_rx_fill(struct aq_hw_s *self, return aq_hw_err_from_flags(self); } +static int hw_atl_b0_hw_ring_hwts_rx_fill(struct aq_hw_s *self, + struct aq_ring_s *ring) +{ + unsigned int i; + + for (i = aq_ring_avail_dx(ring); i--; + ring->sw_tail = aq_ring_next_dx(ring, ring->sw_tail)) { + struct hw_atl_rxd_s *rxd = + (struct hw_atl_rxd_s *) + &ring->dx_ring[ring->sw_tail * HW_ATL_B0_RXD_SIZE]; + + rxd->buf_addr = ring->dx_ring_pa + ring->size * ring->dx_size; + rxd->hdr_addr = 0U; + } + /* Make sure descriptors are updated before bump tail*/ + wmb(); + + hw_atl_reg_rx_dma_desc_tail_ptr_set(self, ring->sw_tail, ring->idx); + + return aq_hw_err_from_flags(self); +} + +static int hw_atl_b0_hw_ring_hwts_rx_receive(struct aq_hw_s *self, + struct aq_ring_s *ring) +{ + while (ring->hw_head != ring->sw_tail) { + struct hw_atl_rxd_hwts_wb_s *hwts_wb = + (struct hw_atl_rxd_hwts_wb_s *) + (ring->dx_ring + (ring->hw_head * HW_ATL_B0_RXD_SIZE)); + + /* RxD is not done */ + if (!(hwts_wb->sec_lw0 & 0x1U)) + break; + + ring->hw_head = aq_ring_next_dx(ring, ring->hw_head); + } + + return aq_hw_err_from_flags(self); +} + static int hw_atl_b0_hw_ring_tx_head_update(struct aq_hw_s *self, struct aq_ring_s *ring) { @@ -1133,6 +1173,61 @@ static int hw_atl_b0_adj_clock_freq(struct aq_hw_s *self, s32 ppb) return self->aq_fw_ops->send_fw_request(self, &fwreq, size); } +static u16 hw_atl_b0_rx_extract_ts(struct aq_hw_s *self, u8 *p, + unsigned int len, u64 *timestamp) +{ + unsigned int offset = 14; + struct ethhdr *eth; + u64 sec; + u8 *ptr; + u32 ns; + + if (len <= offset || !timestamp) + return 0; + + /* The TIMESTAMP in the end of package has following format: + * (big-endian) + * struct { + * uint64_t sec; + * uint32_t ns; + * uint16_t stream_id; + * }; + */ + ptr = p + (len - offset); + memcpy(&sec, ptr, sizeof(sec)); + ptr += sizeof(sec); + memcpy(&ns, ptr, sizeof(ns)); + + sec = be64_to_cpu(sec) & 0xffffffffffffllu; + ns = be32_to_cpu(ns); + *timestamp = sec * NSEC_PER_SEC + ns + self->ptp_clk_offset; + + eth = (struct ethhdr *)p; + + return (eth->h_proto == htons(ETH_P_1588)) ? 12 : 14; +} + +static int hw_atl_b0_extract_hwts(struct aq_hw_s *self, u8 *p, unsigned int len, + u64 *timestamp) +{ + struct hw_atl_rxd_hwts_wb_s *hwts_wb = (struct hw_atl_rxd_hwts_wb_s *)p; + u64 tmp, sec, ns; + + sec = 0; + tmp = (hwts_wb->sec_lw0 >> 2) & 0x3ff; + sec += tmp; + tmp = (u64)((hwts_wb->sec_lw1 >> 16) & 0xffff) << 10; + sec += tmp; + tmp = (u64)(hwts_wb->sec_hw & 0xfff) << 26; + sec += tmp; + tmp = (u64)((hwts_wb->sec_hw >> 22) & 0x3ff) << 38; + sec += tmp; + ns = sec * NSEC_PER_SEC + hwts_wb->ns; + if (timestamp) + *timestamp = ns + self->ptp_clk_offset; + return 0; +} + static int hw_atl_b0_hw_fl3l4_clear(struct aq_hw_s *self, struct aq_rx_filter_l3l4 *data) { @@ -1309,11 +1404,16 @@ const struct aq_hw_ops hw_atl_ops_b0 = { .hw_tx_tc_mode_get = hw_atl_b0_tx_tc_mode_get, .hw_rx_tc_mode_get = hw_atl_b0_rx_tc_mode_get, + .hw_ring_hwts_rx_fill = hw_atl_b0_hw_ring_hwts_rx_fill, + .hw_ring_hwts_rx_receive = hw_atl_b0_hw_ring_hwts_rx_receive, + .hw_get_ptp_ts = hw_atl_b0_get_ptp_ts, .hw_adj_sys_clock = hw_atl_b0_adj_sys_clock, .hw_set_sys_clock = hw_atl_b0_set_sys_clock, .hw_adj_clock_freq = hw_atl_b0_adj_clock_freq, + .rx_extract_ts = hw_atl_b0_rx_extract_ts, + .extract_hwts = hw_atl_b0_extract_hwts, .hw_set_offload = hw_atl_b0_hw_offload_set, .hw_set_fc = hw_atl_b0_set_fc, }; |