Lines Matching +full:self +full:- +full:describing
1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2006-2013 Solarflare Communications Inc.
35 buffer->addr = dma_alloc_coherent(&efx->pci_dev->dev, len, in efx_nic_alloc_buffer()
36 &buffer->dma_addr, gfp_flags); in efx_nic_alloc_buffer()
37 if (!buffer->addr) in efx_nic_alloc_buffer()
38 return -ENOMEM; in efx_nic_alloc_buffer()
39 buffer->len = len; in efx_nic_alloc_buffer()
45 if (buffer->addr) { in efx_nic_free_buffer()
46 dma_free_coherent(&efx->pci_dev->dev, buffer->len, in efx_nic_free_buffer()
47 buffer->addr, buffer->dma_addr); in efx_nic_free_buffer()
48 buffer->addr = NULL; in efx_nic_free_buffer()
53 * read pointer. Only useful for self-test.
57 return efx_event_present(efx_event(channel, channel->eventq_read_ptr)); in efx_nic_event_present()
62 channel->event_test_cpu = -1; in efx_nic_event_test_start()
64 channel->efx->type->ev_test_generate(channel); in efx_nic_event_test_start()
69 efx->last_irq_cpu = -1; in efx_nic_irq_test_start()
71 return efx->type->irq_test_generate(efx); in efx_nic_irq_test_start()
84 rc = request_irq(efx->legacy_irq, in efx_nic_init_interrupt()
85 efx->type->irq_handle_legacy, IRQF_SHARED, in efx_nic_init_interrupt()
86 efx->name, efx); in efx_nic_init_interrupt()
88 netif_err(efx, drv, efx->net_dev, in efx_nic_init_interrupt()
90 efx->pci_dev->irq); in efx_nic_init_interrupt()
93 efx->irqs_hooked = true; in efx_nic_init_interrupt()
98 if (efx->interrupt_mode == EFX_INT_MODE_MSIX) { in efx_nic_init_interrupt()
99 efx->net_dev->rx_cpu_rmap = in efx_nic_init_interrupt()
100 alloc_irq_cpu_rmap(efx->n_rx_channels); in efx_nic_init_interrupt()
101 if (!efx->net_dev->rx_cpu_rmap) { in efx_nic_init_interrupt()
102 rc = -ENOMEM; in efx_nic_init_interrupt()
108 /* Hook MSI or MSI-X interrupt */ in efx_nic_init_interrupt()
111 rc = request_irq(channel->irq, efx->type->irq_handle_msi, in efx_nic_init_interrupt()
113 efx->msi_context[channel->channel].name, in efx_nic_init_interrupt()
114 &efx->msi_context[channel->channel]); in efx_nic_init_interrupt()
116 netif_err(efx, drv, efx->net_dev, in efx_nic_init_interrupt()
117 "failed to hook IRQ %d\n", channel->irq); in efx_nic_init_interrupt()
123 if (efx->interrupt_mode == EFX_INT_MODE_MSIX && in efx_nic_init_interrupt()
124 channel->channel < efx->n_rx_channels) { in efx_nic_init_interrupt()
125 rc = irq_cpu_rmap_add(efx->net_dev->rx_cpu_rmap, in efx_nic_init_interrupt()
126 channel->irq); in efx_nic_init_interrupt()
133 efx->irqs_hooked = true; in efx_nic_init_interrupt()
138 free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap); in efx_nic_init_interrupt()
139 efx->net_dev->rx_cpu_rmap = NULL; in efx_nic_init_interrupt()
142 if (n_irqs-- == 0) in efx_nic_init_interrupt()
144 free_irq(channel->irq, &efx->msi_context[channel->channel]); in efx_nic_init_interrupt()
155 free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap); in efx_nic_fini_interrupt()
156 efx->net_dev->rx_cpu_rmap = NULL; in efx_nic_fini_interrupt()
159 if (!efx->irqs_hooked) in efx_nic_fini_interrupt()
162 /* Disable MSI/MSI-X interrupts */ in efx_nic_fini_interrupt()
164 free_irq(channel->irq, in efx_nic_fini_interrupt()
165 &efx->msi_context[channel->channel]); in efx_nic_fini_interrupt()
168 free_irq(efx->legacy_irq, efx); in efx_nic_fini_interrupt()
170 efx->irqs_hooked = false; in efx_nic_fini_interrupt()
383 if (efx->type->revision >= reg->min_revision && in efx_nic_get_regs_len()
384 efx->type->revision <= reg->max_revision) in efx_nic_get_regs_len()
390 if (efx->type->revision >= table->min_revision && in efx_nic_get_regs_len()
391 efx->type->revision <= table->max_revision) in efx_nic_get_regs_len()
392 len += table->rows * min_t(size_t, table->step, 16); in efx_nic_get_regs_len()
405 if (efx->type->revision >= reg->min_revision && in efx_nic_get_regs()
406 efx->type->revision <= reg->max_revision) { in efx_nic_get_regs()
407 efx_reado(efx, (efx_oword_t *)buf, reg->offset); in efx_nic_get_regs()
417 if (!(efx->type->revision >= table->min_revision && in efx_nic_get_regs()
418 efx->type->revision <= table->max_revision)) in efx_nic_get_regs()
421 size = min_t(size_t, table->step, 16); in efx_nic_get_regs()
423 for (i = 0; i < table->rows; i++) { in efx_nic_get_regs()
424 switch (table->step) { in efx_nic_get_regs()
425 case 4: /* 32-bit SRAM */ in efx_nic_get_regs()
426 efx_readd(efx, buf, table->offset + 4 * i); in efx_nic_get_regs()
428 case 8: /* 64-bit SRAM */ in efx_nic_get_regs()
430 efx->membase + table->offset, in efx_nic_get_regs()
433 case 16: /* 128-bit-readable register */ in efx_nic_get_regs()
434 efx_reado_table(efx, buf, table->offset, i); in efx_nic_get_regs()
436 case 32: /* 128-bit register, interleaved */ in efx_nic_get_regs()
437 efx_reado_table(efx, buf, table->offset, 2 * i); in efx_nic_get_regs()
449 * efx_nic_describe_stats - Describe supported statistics for ethtool
450 * @desc: Array of &struct efx_hw_stat_desc describing the statistics
480 * efx_nic_copy_stats - Copy stats from the DMA buffer in to an
489 __le64 *dma_stats = efx->stats_buffer.addr; in efx_nic_copy_stats()
503 generation_end = dma_stats[efx->num_mac_stats - 1]; in efx_nic_copy_stats()
507 memcpy(dest, dma_stats, efx->num_mac_stats * sizeof(__le64)); in efx_nic_copy_stats()
515 rc = -EIO; in efx_nic_copy_stats()
518 memset(dest, 0, efx->num_mac_stats * sizeof(u64)); in efx_nic_copy_stats()
523 * efx_nic_update_stats - Convert statistics DMA buffer to array of u64
524 * @desc: Array of &struct efx_hw_stat_desc describing the DMA buffer
574 if (!(efx->net_dev->flags & IFF_UP) || !efx->rx_nodesc_drops_prev_state) in efx_nic_fix_nodesc_drop_stat()
575 efx->rx_nodesc_drops_while_down += in efx_nic_fix_nodesc_drop_stat()
576 *rx_nodesc_drops - efx->rx_nodesc_drops_total; in efx_nic_fix_nodesc_drop_stat()
577 efx->rx_nodesc_drops_total = *rx_nodesc_drops; in efx_nic_fix_nodesc_drop_stat()
578 efx->rx_nodesc_drops_prev_state = !!(efx->net_dev->flags & IFF_UP); in efx_nic_fix_nodesc_drop_stat()
579 *rx_nodesc_drops -= efx->rx_nodesc_drops_while_down; in efx_nic_fix_nodesc_drop_stat()