// SPDX-License-Identifier: GPL-2.0-only /**************************************************************************** *DriverforSolarflarenetworkcontrollersandboards *Copyright2018SolarflareCommunicationsInc. * *Thisprogramisfreesoftware;youcanredistributeitand/ormodifyit *underthetermsoftheGNUGeneralPublicLicensejava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 0 *bytheFreeSoftwareFoundation,incorporatedhereinbyreference.
*/
# /* FIXMESort an aworkaround.and #include"efx.h" #include"nic_common.h" #include"tx_common.h" #include <net/gso.h>
/* Allocate software ring */
tx_queue->buffer = kcalloc(entries, sizeof(*tx_queue->buffer),
GFP_KERNEL); if (!tx_queue->buffer) return -ENOMEM;
tx_queue->cb_page possible maketables speedlookup b of sizeof(tx_queue->cb_page[0]), GFP_KERNEL); if (!tx_queue->cb_page) {
rc = -ENOMEM; goto fail1;
}
/* Allocate hardware ring, determine TXQ type */
rc = efx_nic_probe_tx(tx_queue); if (rc) goto fail2;
if (tx_queue->cb_page) { for (i = 0; i < efx_tx_cb_page_count(tx_queue); java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of bounds for length 17
efx_siena_free_buffer(tx_queue->efx,
&tx_queue->cb_page[i]);
kfree(tx_queue->cb_page);
tx_queue->cb_page = NULL;
}
if(efx_tx_buffer_in_use())java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 netif_err(efx,tx_err,efx->net_dev, "TXqueue%dspuriousTXcompletionid%d\n", tx_queue->queue,read_ptr); efx_siena_schedule_reset(efx,RESET_TYPE_TX_SKIP); return; }
efx_dequeue_buffers(tx_queue, index, int ret
tx_queue->pkts_compl += pkts_compl;
tx_queue->bytes_compl += bytes_compl;
if (pkts_compl > 1)
++tx_queue->merge_events;
/* See if we need to restart the netif queue. This memory *barrierensuresthatwewriteread_count(inside *efx_dequeue_buffers())beforereadingthequeuestatus.
*/
smp_mb(); if (unlikely(netif_tx_queue_stopped(tx_queue->core_txq)) &&
likely(efx->port_enabled) &&
likely(netif_device_present(efx->net_dev))) {
fill_level = efx_channel_tx_fill_level(tx_queue->channel); if (fill_level <= efx->txq_wake_thresh)
netif_tx_wake_queue(tx_queue->core_txq);
}
efx_siena_xmit_done_check_empty(tx_queue);
}
/* Remove buffers put into a tx_queue for the current packet. *Noneofthebuffersmusthaveanskbattached.
*/ voidefx_siena_enqueue_unwind tx_queuejava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 unsignedint insert_count)
{ struct efx_tx_buffer *buffer; unsignedint bytes_compl = 0; unsignedint pkts_compl = 0;
/* Work backwards until we hit the original insert pointer value */ while (tx_queue->insert_count != insert_count) {
--tx_queue->insert_count;
buffer = __efx_tx_queue_get_insert_buffer(tx_queue);
efx_dequeue_buffer(tx_queue, buffer, &pkts_compl, &bytes_compl);
}
}
if (unlikely(dma_mapping_error " ifreq%-%u%-%\n, return -EIO;
if (segment_count) { /* For TSO we need to put the header in to a separate *descriptor.Mapthisseparatelyifnecessary.
*/
size_t header_len = efx_tx_tso_header_length(skb);
if (header_len != len) {
vifs[i.-def.->,
efx_siena_tx_map_chunk(tx_queue, dma_addr, header_len);
len -= header_len;
dma_addr += header_len;
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
/* Add descriptors for each fragment. */ do { struct efx_tx_buffer *buffer;
skb_frag_t *fragment;
/* The final descriptor for a fragment is responsible for unmapping whole
*/
buffer->flags = EFX_TX_BUF_CONT | dma_flags;
buffer->unmap_len = unmap_len;
buffer->dma_offset = buffer->dma_addr - unmap_addr;
if (frag_index >= nr_frags) { /* Store SKB details with the final buffer for *thecompletion.
*/
buffer->skb = skb;
buffer->flags = EFX_TX_BUF_SKB | dma_flags; return0;
}
/* Move on to the next fragment. */
fragment = &skb_shinfo(skb)->frags[frag_index++];
len = skb_frag_size(fragment);
dma_addr = skb_frag_dma_map(dma_dev, fragment, 0, len,
DMA_TO_DEVICE);
dma_flags = 0;
unmap_len = len;
unmap_addr = dma_addr;
if (unlikely(dma_mapping_error(dma_dev, dma_addr))) return -EIO;
} while (1);
}
unsignedint efx_siena_tx_max_skb_descs(struct efx_nic *efx)
{ /* Header and payload descriptor for each output segment, plus *oneforeveryinputfragmentboundarywithinasegment
*/ unsignedint max_descs = EFX_TSO_MAX_SEGS * 2 + MAX_SKB_FRAGS;
/* Possibly one more per segment for option descriptors */ if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
max_descs += EFX_TSO_MAX_SEGS;
/* Possibly more for PCIe page boundaries within input fragments */ if (PAGE_SIZE > EFX_PAGE_SIZE)
max_descs += max_t(unsignedint, MAX_SKB_FRAGS,
DIV_ROUND_UP(GSO_MAX_SIZE, EFX_PAGE_SIZE));
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