diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet.c')
| -rw-r--r-- | drivers/staging/octeon/ethernet.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 973178a80c9..9f5b7419e77 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -104,6 +104,16 @@ MODULE_PARM_DESC(pow_send_list, "\n" "\t\"eth2,spi3,spi7\" would cause these three devices to transmit\n" "\tusing the pow_send_group."); +int max_rx_cpus = -1; +module_param(max_rx_cpus, int, 0444); +MODULE_PARM_DESC(max_rx_cpus, "\n" + "\t\tThe maximum number of CPUs to use for packet reception.\n" + "\t\tUse -1 to use all available CPUs."); + +int rx_napi_weight = 32; +module_param(rx_napi_weight, int, 0444); +MODULE_PARM_DESC(rx_napi_weight, "The NAPI WEIGHT parameter."); + /* * The offset from mac_addr_base that should be used for the next port * that is configured. By convention, if any mgmt ports exist on the @@ -149,6 +159,15 @@ static void cvm_do_timer(unsigned long arg) } else { port = 0; /* + * FPA 0 may have been drained, try to refill it if we + * need more than num_packet_buffers / 2, otherwise + * normal receive processing will refill it. If it + * were drained, no packets could be received so + * cvm_oct_napi_poll would never be invoked to do the + * refill. + */ + cvm_oct_rx_refill_pool(num_packet_buffers / 2); + /* * All ports have been polled. Start the next iteration through * the ports in one second. */ @@ -161,7 +180,6 @@ static void cvm_do_timer(unsigned long arg) */ static __init void cvm_oct_configure_common_hw(void) { - int r; /* Setup the FPA */ cvmx_fpa_enable(); cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, @@ -176,17 +194,6 @@ static __init void cvm_oct_configure_common_hw(void) cvmx_helper_setup_red(num_packet_buffers / 4, num_packet_buffers / 8); - /* Register an IRQ hander for to receive POW interrupts */ - r = request_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group, - cvm_oct_do_interrupt, IRQF_SHARED, "Ethernet", - cvm_oct_device); - -#if defined(CONFIG_SMP) && 0 - if (USE_MULTICORE_RECEIVE) { - irq_set_affinity(OCTEON_IRQ_WORKQ0 + pow_receive_group, - cpu_online_mask); - } -#endif } /** @@ -616,7 +623,6 @@ static int __init cvm_oct_init_module(void) cvm_oct_mac_addr_offset = 0; cvm_oct_proc_initialize(); - cvm_oct_rx_initialize(); cvm_oct_configure_common_hw(); cvmx_helper_initialize_packet_io_global(); @@ -781,25 +787,7 @@ static int __init cvm_oct_init_module(void) } } - if (INTERRUPT_LIMIT) { - /* - * Set the POW timer rate to give an interrupt at most - * INTERRUPT_LIMIT times per second. - */ - cvmx_write_csr(CVMX_POW_WQ_INT_PC, - octeon_bootinfo->eclock_hz / (INTERRUPT_LIMIT * - 16 * 256) << 8); - - /* - * Enable POW timer interrupt. It will count when - * there are packets available. - */ - cvmx_write_csr(CVMX_POW_WQ_INT_THRX(pow_receive_group), - 0x1ful << 24); - } else { - /* Enable POW interrupt when our port has at least one packet */ - cvmx_write_csr(CVMX_POW_WQ_INT_THRX(pow_receive_group), 0x1001); - } + cvm_oct_rx_initialize(); /* Enable the poll timer for checking RGMII status */ init_timer(&cvm_oct_poll_timer); |