ena: Move RSS logic into its own source files
Delegate RSS related functionality into separate .c/.h files in preparation for the full RSS support. While at it, reorder functions and remove prototypes for ones with internal linkage. Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc.
This commit is contained in:
parent
cb98c439d6
commit
986e7b9227
@ -63,9 +63,6 @@ __FBSDID("$FreeBSD$");
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#include <net/if_media.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_types.h>
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#include <net/if_vlan_var.h>
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#include <net/if_vlan_var.h>
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#ifdef RSS
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#include <net/rss_config.h>
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#endif
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#include <netinet/in_systm.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/in.h>
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@ -84,6 +81,7 @@ __FBSDID("$FreeBSD$");
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#include "ena_datapath.h"
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#include "ena_datapath.h"
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#include "ena.h"
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#include "ena.h"
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#include "ena_sysctl.h"
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#include "ena_sysctl.h"
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#include "ena_rss.h"
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#ifdef DEV_NETMAP
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#ifdef DEV_NETMAP
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#include "ena_netmap.h"
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#include "ena_netmap.h"
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@ -143,7 +141,6 @@ static void ena_free_io_irq(struct ena_adapter *);
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static void ena_free_irqs(struct ena_adapter*);
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static void ena_free_irqs(struct ena_adapter*);
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static void ena_disable_msix(struct ena_adapter *);
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static void ena_disable_msix(struct ena_adapter *);
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static void ena_unmask_all_io_irqs(struct ena_adapter *);
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static void ena_unmask_all_io_irqs(struct ena_adapter *);
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static int ena_rss_configure(struct ena_adapter *);
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static int ena_up_complete(struct ena_adapter *);
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static int ena_up_complete(struct ena_adapter *);
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static uint64_t ena_get_counter(if_t, ift_counter);
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static uint64_t ena_get_counter(if_t, ift_counter);
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static int ena_media_change(if_t);
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static int ena_media_change(if_t);
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@ -161,8 +158,6 @@ static int ena_set_queues_placement_policy(device_t, struct ena_com_dev *,
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static uint32_t ena_calc_max_io_queue_num(device_t, struct ena_com_dev *,
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static uint32_t ena_calc_max_io_queue_num(device_t, struct ena_com_dev *,
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struct ena_com_dev_get_features_ctx *);
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struct ena_com_dev_get_features_ctx *);
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static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *);
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static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *);
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static int ena_rss_init_default(struct ena_adapter *);
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static void ena_rss_init_default_deferred(void *);
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static void ena_config_host_info(struct ena_com_dev *, device_t);
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static void ena_config_host_info(struct ena_com_dev *, device_t);
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static int ena_attach(device_t);
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static int ena_attach(device_t);
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static int ena_detach(device_t);
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static int ena_detach(device_t);
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@ -265,27 +260,6 @@ ena_dma_alloc(device_t dmadev, bus_size_t size,
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return (error);
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return (error);
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}
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}
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/*
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* This function should generate unique key for the whole driver.
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* If the key was already genereated in the previous call (for example
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* for another adapter), then it should be returned instead.
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*/
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void
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ena_rss_key_fill(void *key, size_t size)
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{
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static bool key_generated;
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static uint8_t default_key[ENA_HASH_KEY_SIZE];
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KASSERT(size <= ENA_HASH_KEY_SIZE, ("Requested more bytes than ENA RSS key can hold"));
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if (!key_generated) {
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arc4random_buf(default_key, ENA_HASH_KEY_SIZE);
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key_generated = true;
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}
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memcpy(key, default_key, size);
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}
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static void
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static void
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ena_free_pci_resources(struct ena_adapter *adapter)
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ena_free_pci_resources(struct ena_adapter *adapter)
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{
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{
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@ -1922,43 +1896,6 @@ ena_unmask_all_io_irqs(struct ena_adapter *adapter)
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}
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}
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}
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}
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/* Configure the Rx forwarding */
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static int
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ena_rss_configure(struct ena_adapter *adapter)
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{
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struct ena_com_dev *ena_dev = adapter->ena_dev;
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int rc;
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/* In case the RSS table was destroyed */
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if (!ena_dev->rss.tbl_log_size) {
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rc = ena_rss_init_default(adapter);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(adapter->pdev, ERR,
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"WARNING: RSS was not properly re-initialized,"
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" it will affect bandwidth\n");
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ENA_FLAG_CLEAR_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
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return (rc);
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}
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}
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/* Set indirect table */
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rc = ena_com_indirect_table_set(ena_dev);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
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return (rc);
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/* Configure hash function (if supported) */
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rc = ena_com_set_hash_function(ena_dev);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
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return (rc);
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/* Configure hash inputs (if supported) */
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rc = ena_com_set_hash_ctrl(ena_dev);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
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return (rc);
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return (0);
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}
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static int
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static int
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ena_up_complete(struct ena_adapter *adapter)
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ena_up_complete(struct ena_adapter *adapter)
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{
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{
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@ -2730,90 +2667,6 @@ ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
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return (0);
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return (0);
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}
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}
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static int
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ena_rss_init_default(struct ena_adapter *adapter)
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{
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struct ena_com_dev *ena_dev = adapter->ena_dev;
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device_t dev = adapter->pdev;
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int qid, rc, i;
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rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
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if (unlikely(rc != 0)) {
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ena_log(dev, ERR, "Cannot init indirect table\n");
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return (rc);
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}
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for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
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qid = i % adapter->num_io_queues;
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rc = ena_com_indirect_table_fill_entry(ena_dev, i,
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ENA_IO_RXQ_IDX(qid));
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill indirect table\n");
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goto err_rss_destroy;
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}
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}
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#ifdef RSS
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uint8_t rss_algo = rss_gethashalgo();
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if (rss_algo == RSS_HASH_TOEPLITZ) {
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uint8_t hash_key[RSS_KEYSIZE];
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rss_getkey(hash_key);
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rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_TOEPLITZ,
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hash_key, RSS_KEYSIZE, 0xFFFFFFFF);
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} else
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#endif
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rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
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ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill hash function\n");
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goto err_rss_destroy;
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}
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rc = ena_com_set_default_hash_ctrl(ena_dev);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill hash control\n");
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goto err_rss_destroy;
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}
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return (0);
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err_rss_destroy:
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ena_com_rss_destroy(ena_dev);
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return (rc);
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}
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static void
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ena_rss_init_default_deferred(void *arg)
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{
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struct ena_adapter *adapter;
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devclass_t dc;
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int max;
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int rc;
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dc = devclass_find("ena");
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if (unlikely(dc == NULL)) {
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ena_log_raw(ERR, "SYSINIT: %s: No devclass ena\n", __func__);
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return;
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}
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max = devclass_get_maxunit(dc);
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while (max-- >= 0) {
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adapter = devclass_get_softc(dc, max);
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if (adapter != NULL) {
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rc = ena_rss_init_default(adapter);
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ENA_FLAG_SET_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
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if (unlikely(rc != 0)) {
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ena_log(adapter->pdev, WARN,
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"WARNING: RSS was not properly initialized,"
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" it will affect bandwidth\n");
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ENA_FLAG_CLEAR_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
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}
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}
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}
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}
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SYSINIT(ena_rss_init, SI_SUB_KICK_SCHEDULER, SI_ORDER_SECOND, ena_rss_init_default_deferred, NULL);
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static void
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static void
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ena_config_host_info(struct ena_com_dev *ena_dev, device_t dev)
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ena_config_host_info(struct ena_com_dev *ena_dev, device_t dev)
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{
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{
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@ -34,7 +34,6 @@
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#ifndef ENA_H
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#ifndef ENA_H
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#define ENA_H
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#define ENA_H
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#include <sys/types.h>
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#include "ena-com/ena_com.h"
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#include "ena-com/ena_com.h"
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#include "ena-com/ena_eth_com.h"
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#include "ena-com/ena_eth_com.h"
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182
sys/dev/ena/ena_rss.c
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182
sys/dev/ena/ena_rss.c
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@ -0,0 +1,182 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2015-2021 Amazon.com, Inc. or its affiliates.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_rss.h"
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#include "ena_rss.h"
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/*
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* This function should generate unique key for the whole driver.
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* If the key was already genereated in the previous call (for example
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* for another adapter), then it should be returned instead.
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*/
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void
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ena_rss_key_fill(void *key, size_t size)
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{
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static bool key_generated;
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static uint8_t default_key[ENA_HASH_KEY_SIZE];
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KASSERT(size <= ENA_HASH_KEY_SIZE, ("Requested more bytes than ENA RSS key can hold"));
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if (!key_generated) {
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arc4random_buf(default_key, ENA_HASH_KEY_SIZE);
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key_generated = true;
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}
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memcpy(key, default_key, size);
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}
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static int
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ena_rss_init_default(struct ena_adapter *adapter)
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{
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struct ena_com_dev *ena_dev = adapter->ena_dev;
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device_t dev = adapter->pdev;
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int qid, rc, i;
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rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
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if (unlikely(rc != 0)) {
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ena_log(dev, ERR, "Cannot init indirect table\n");
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return (rc);
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}
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for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
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qid = i % adapter->num_io_queues;
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rc = ena_com_indirect_table_fill_entry(ena_dev, i,
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ENA_IO_RXQ_IDX(qid));
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill indirect table\n");
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goto err_rss_destroy;
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}
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}
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#ifdef RSS
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uint8_t rss_algo = rss_gethashalgo();
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if (rss_algo == RSS_HASH_TOEPLITZ) {
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uint8_t hash_key[RSS_KEYSIZE];
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rss_getkey(hash_key);
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rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_TOEPLITZ,
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hash_key, RSS_KEYSIZE, 0xFFFFFFFF);
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} else
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#endif
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rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
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ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill hash function\n");
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goto err_rss_destroy;
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}
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rc = ena_com_set_default_hash_ctrl(ena_dev);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(dev, ERR, "Cannot fill hash control\n");
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goto err_rss_destroy;
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}
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return (0);
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err_rss_destroy:
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ena_com_rss_destroy(ena_dev);
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return (rc);
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}
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/* Configure the Rx forwarding */
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int
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ena_rss_configure(struct ena_adapter *adapter)
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{
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struct ena_com_dev *ena_dev = adapter->ena_dev;
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int rc;
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/* In case the RSS table was destroyed */
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if (!ena_dev->rss.tbl_log_size) {
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rc = ena_rss_init_default(adapter);
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if (unlikely((rc != 0) && (rc != EOPNOTSUPP))) {
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ena_log(adapter->pdev, ERR,
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"WARNING: RSS was not properly re-initialized,"
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" it will affect bandwidth\n");
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ENA_FLAG_CLEAR_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
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return (rc);
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}
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}
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/* Set indirect table */
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||||||
|
rc = ena_com_indirect_table_set(ena_dev);
|
||||||
|
if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
|
||||||
|
return (rc);
|
||||||
|
|
||||||
|
/* Configure hash function (if supported) */
|
||||||
|
rc = ena_com_set_hash_function(ena_dev);
|
||||||
|
if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
|
||||||
|
return (rc);
|
||||||
|
|
||||||
|
/* Configure hash inputs (if supported) */
|
||||||
|
rc = ena_com_set_hash_ctrl(ena_dev);
|
||||||
|
if (unlikely((rc != 0) && (rc != EOPNOTSUPP)))
|
||||||
|
return (rc);
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
ena_rss_init_default_deferred(void *arg)
|
||||||
|
{
|
||||||
|
struct ena_adapter *adapter;
|
||||||
|
devclass_t dc;
|
||||||
|
int max;
|
||||||
|
int rc;
|
||||||
|
|
||||||
|
dc = devclass_find("ena");
|
||||||
|
if (unlikely(dc == NULL)) {
|
||||||
|
ena_log_raw(ERR, "SYSINIT: %s: No devclass ena\n", __func__);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
max = devclass_get_maxunit(dc);
|
||||||
|
while (max-- >= 0) {
|
||||||
|
adapter = devclass_get_softc(dc, max);
|
||||||
|
if (adapter != NULL) {
|
||||||
|
rc = ena_rss_init_default(adapter);
|
||||||
|
ENA_FLAG_SET_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
|
||||||
|
if (unlikely(rc != 0)) {
|
||||||
|
ena_log(adapter->pdev, WARN,
|
||||||
|
"WARNING: RSS was not properly initialized,"
|
||||||
|
" it will affect bandwidth\n");
|
||||||
|
ENA_FLAG_CLEAR_ATOMIC(ENA_FLAG_RSS_ACTIVE, adapter);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
SYSINIT(ena_rss_init, SI_SUB_KICK_SCHEDULER, SI_ORDER_SECOND, ena_rss_init_default_deferred, NULL);
|
49
sys/dev/ena/ena_rss.h
Normal file
49
sys/dev/ena/ena_rss.h
Normal file
@ -0,0 +1,49 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause
|
||||||
|
*
|
||||||
|
* Copyright (c) 2015-2021 Amazon.com, Inc. or its affiliates.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
* $FreeBSD$
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef ENA_RSS_H
|
||||||
|
#define ENA_RSS_H
|
||||||
|
|
||||||
|
#include "opt_rss.h"
|
||||||
|
|
||||||
|
#include <sys/types.h>
|
||||||
|
|
||||||
|
#ifdef RSS
|
||||||
|
#include <net/rss_config.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "ena.h"
|
||||||
|
|
||||||
|
int ena_rss_configure(struct ena_adapter *);
|
||||||
|
|
||||||
|
#endif /* !(ENA_RSS_H) */
|
@ -35,7 +35,7 @@
|
|||||||
|
|
||||||
KMOD = if_ena
|
KMOD = if_ena
|
||||||
SRCS = ena_com.c ena_eth_com.c
|
SRCS = ena_com.c ena_eth_com.c
|
||||||
SRCS += ena.c ena_sysctl.c ena_datapath.c ena_netmap.c
|
SRCS += ena.c ena_sysctl.c ena_datapath.c ena_netmap.c ena_rss.c
|
||||||
SRCS += device_if.h bus_if.h pci_if.h
|
SRCS += device_if.h bus_if.h pci_if.h
|
||||||
SRCS += opt_rss.h
|
SRCS += opt_rss.h
|
||||||
CFLAGS += -I${SRCTOP}/sys/contrib
|
CFLAGS += -I${SRCTOP}/sys/contrib
|
||||||
|
Loading…
Reference in New Issue
Block a user