Lines Matching +full:convert +full:- +full:rate

1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
10 /* Interrupt Throttling and Rate Limiting Goodies */
32 /* 0x40 is the enable bit for interrupt rate limiting, and must be set if
33  * the value of the rate limit is non-zero
40  * i40e_intrl_usec_to_reg - convert interrupt rate limit to register
41  * @intrl: interrupt rate limit to convert
43  * This function converts a decimal interrupt rate limit to the appropriate
44  * register format expected by the firmware when setting interrupt rate limit.
96 	(test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, (pf)->hw.caps) ? \
110  * i.e. RXBUFFER_256 --> 960 byte skb (size-1024 slab)
111  * i.e. RXBUFFER_512 --> 1216 byte skb (size-2048 slab)
139 	pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len;  in i40e_compute_pad()
153 	 * cache-line alignment.  in i40e_skb_pad()
161 	rx_buf_len -= NET_IP_ALIGN;  in i40e_skb_pad()
173  * i40e_test_staterr - tests bits in Rx descriptor status and error fields
185 	return !!(rx_desc->wb.qword1.status_error_len &  in i40e_test_staterr()
195 		if ((i) == (r)->count)		\
204 /* The size limit for a transmit buffer in a descriptor is (16K - 1).
209 #define I40E_MAX_DATA_PER_TXD		(16 * 1024 - 1)
211 	(I40E_MAX_DATA_PER_TXD & ~(I40E_MAX_READ_REQ_SIZE - 1))
214  * i40e_txd_use_count  - estimate the number of descriptors needed for Tx
219  * though each descriptor can take up to 16K - 1 bytes of aligned memory.
230  * accurate as we have 4K - 1 of wiggle room that we can fit into the last
406 	return !!(ring->flags & I40E_RXR_FLAGS_BUILD_SKB_ENABLED);  in ring_uses_build_skb()
411 	ring->flags |= I40E_RXR_FLAGS_BUILD_SKB_ENABLED;  in set_ring_build_skb_enabled()
416 	ring->flags &= ~I40E_RXR_FLAGS_BUILD_SKB_ENABLED;  in clear_ring_build_skb_enabled()
421 	return !!(ring->flags & I40E_TXR_FLAGS_XDP);  in ring_is_xdp()
426 	ring->flags |= I40E_TXR_FLAGS_XDP;  in set_ring_xdp()
447 	for (pos = (head).ring; pos != NULL; pos = pos->next)
452 	if (ring->rx_buf_len > (PAGE_SIZE / 2))  in i40e_rx_pg_order()
482  * i40e_get_head - Retrieve head from head writeback
486  * in head write-back location
490 	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;  in i40e_get_head()
496  * i40e_xmit_descriptor_count - calculate number of Tx descriptors needed
505 	const skb_frag_t *frag = &skb_shinfo(skb)->frags[0];  in i40e_xmit_descriptor_count()
506 	unsigned int nr_frags = skb_shinfo(skb)->nr_frags;  in i40e_xmit_descriptor_count()
512 		if (!nr_frags--)  in i40e_xmit_descriptor_count()
522  * i40e_maybe_stop_tx - 1st level check for Tx stop conditions
536  * i40e_chk_linearize - Check if there are more than 8 fragments per packet
540  * Note: Our HW can't scatter-gather more than 8 fragments to build
558  * txring_txq - Find the netdev Tx ring based on the i40e Tx ring
563 	return netdev_get_tx_queue(ring->netdev, ring->queue_index);  in txring_txq()