11d6cff4fSYuval Mintz /* QLogic qed NIC Driver 21d6cff4fSYuval Mintz * Copyright (c) 2015 QLogic Corporation 31d6cff4fSYuval Mintz * 41d6cff4fSYuval Mintz * This software is available under the terms of the GNU General Public License 51d6cff4fSYuval Mintz * (GPL) Version 2, available from the file COPYING in the main directory of 61d6cff4fSYuval Mintz * this source tree. 71d6cff4fSYuval Mintz */ 81d6cff4fSYuval Mintz 91d6cff4fSYuval Mintz #include <linux/types.h> 101d6cff4fSYuval Mintz #include <linux/dma-mapping.h> 111d6cff4fSYuval Mintz #include <linux/kernel.h> 121d6cff4fSYuval Mintz #include <linux/list.h> 131d6cff4fSYuval Mintz #include <linux/pci.h> 141d6cff4fSYuval Mintz #include <linux/slab.h> 151d6cff4fSYuval Mintz #include <linux/string.h> 161d6cff4fSYuval Mintz #include "qed.h" 171d6cff4fSYuval Mintz #include "qed_iscsi.h" 181d6cff4fSYuval Mintz #include "qed_ll2.h" 191d6cff4fSYuval Mintz #include "qed_ooo.h" 201d6cff4fSYuval Mintz 211d6cff4fSYuval Mintz static struct qed_ooo_archipelago 221d6cff4fSYuval Mintz *qed_ooo_seek_archipelago(struct qed_hwfn *p_hwfn, 231d6cff4fSYuval Mintz struct qed_ooo_info 241d6cff4fSYuval Mintz *p_ooo_info, 251d6cff4fSYuval Mintz u32 cid) 261d6cff4fSYuval Mintz { 271d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago = NULL; 281d6cff4fSYuval Mintz 291d6cff4fSYuval Mintz list_for_each_entry(p_archipelago, 301d6cff4fSYuval Mintz &p_ooo_info->archipelagos_list, list_entry) { 311d6cff4fSYuval Mintz if (p_archipelago->cid == cid) 321d6cff4fSYuval Mintz return p_archipelago; 331d6cff4fSYuval Mintz } 341d6cff4fSYuval Mintz 351d6cff4fSYuval Mintz return NULL; 361d6cff4fSYuval Mintz } 371d6cff4fSYuval Mintz 381d6cff4fSYuval Mintz static struct qed_ooo_isle *qed_ooo_seek_isle(struct qed_hwfn *p_hwfn, 391d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 401d6cff4fSYuval Mintz u32 cid, u8 isle) 411d6cff4fSYuval Mintz { 421d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago = NULL; 431d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle = NULL; 441d6cff4fSYuval Mintz u8 the_num_of_isle = 1; 451d6cff4fSYuval Mintz 461d6cff4fSYuval Mintz p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid); 471d6cff4fSYuval Mintz if (!p_archipelago) { 481d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 491d6cff4fSYuval Mintz "Connection %d is not found in OOO list\n", cid); 501d6cff4fSYuval Mintz return NULL; 511d6cff4fSYuval Mintz } 521d6cff4fSYuval Mintz 531d6cff4fSYuval Mintz list_for_each_entry(p_isle, &p_archipelago->isles_list, list_entry) { 541d6cff4fSYuval Mintz if (the_num_of_isle == isle) 551d6cff4fSYuval Mintz return p_isle; 561d6cff4fSYuval Mintz the_num_of_isle++; 571d6cff4fSYuval Mintz } 581d6cff4fSYuval Mintz 591d6cff4fSYuval Mintz return NULL; 601d6cff4fSYuval Mintz } 611d6cff4fSYuval Mintz 621d6cff4fSYuval Mintz void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn, 631d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 641d6cff4fSYuval Mintz struct ooo_opaque *p_cqe) 651d6cff4fSYuval Mintz { 661d6cff4fSYuval Mintz struct qed_ooo_history *p_history = &p_ooo_info->ooo_history; 671d6cff4fSYuval Mintz 681d6cff4fSYuval Mintz if (p_history->head_idx == p_history->num_of_cqes) 691d6cff4fSYuval Mintz p_history->head_idx = 0; 701d6cff4fSYuval Mintz p_history->p_cqes[p_history->head_idx] = *p_cqe; 711d6cff4fSYuval Mintz p_history->head_idx++; 721d6cff4fSYuval Mintz } 731d6cff4fSYuval Mintz 741d6cff4fSYuval Mintz struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn) 751d6cff4fSYuval Mintz { 761d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info; 771d6cff4fSYuval Mintz u16 max_num_archipelagos = 0; 781d6cff4fSYuval Mintz u16 max_num_isles = 0; 791d6cff4fSYuval Mintz u32 i; 801d6cff4fSYuval Mintz 811d6cff4fSYuval Mintz if (p_hwfn->hw_info.personality != QED_PCI_ISCSI) { 821d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 831d6cff4fSYuval Mintz "Failed to allocate qed_ooo_info: unknown personality\n"); 841d6cff4fSYuval Mintz return NULL; 851d6cff4fSYuval Mintz } 861d6cff4fSYuval Mintz 871d6cff4fSYuval Mintz max_num_archipelagos = p_hwfn->pf_params.iscsi_pf_params.num_cons; 881d6cff4fSYuval Mintz max_num_isles = QED_MAX_NUM_ISLES + max_num_archipelagos; 891d6cff4fSYuval Mintz 901d6cff4fSYuval Mintz if (!max_num_archipelagos) { 911d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 921d6cff4fSYuval Mintz "Failed to allocate qed_ooo_info: unknown amount of connections\n"); 931d6cff4fSYuval Mintz return NULL; 941d6cff4fSYuval Mintz } 951d6cff4fSYuval Mintz 961d6cff4fSYuval Mintz p_ooo_info = kzalloc(sizeof(*p_ooo_info), GFP_KERNEL); 971d6cff4fSYuval Mintz if (!p_ooo_info) 981d6cff4fSYuval Mintz return NULL; 991d6cff4fSYuval Mintz 1001d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->free_buffers_list); 1011d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->ready_buffers_list); 1021d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->free_isles_list); 1031d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->free_archipelagos_list); 1041d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->archipelagos_list); 1051d6cff4fSYuval Mintz 1061d6cff4fSYuval Mintz p_ooo_info->p_isles_mem = kcalloc(max_num_isles, 1071d6cff4fSYuval Mintz sizeof(struct qed_ooo_isle), 1081d6cff4fSYuval Mintz GFP_KERNEL); 1091d6cff4fSYuval Mintz if (!p_ooo_info->p_isles_mem) 1101d6cff4fSYuval Mintz goto no_isles_mem; 1111d6cff4fSYuval Mintz 1121d6cff4fSYuval Mintz for (i = 0; i < max_num_isles; i++) { 1131d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->p_isles_mem[i].buffers_list); 1141d6cff4fSYuval Mintz list_add_tail(&p_ooo_info->p_isles_mem[i].list_entry, 1151d6cff4fSYuval Mintz &p_ooo_info->free_isles_list); 1161d6cff4fSYuval Mintz } 1171d6cff4fSYuval Mintz 1181d6cff4fSYuval Mintz p_ooo_info->p_archipelagos_mem = 1191d6cff4fSYuval Mintz kcalloc(max_num_archipelagos, 1201d6cff4fSYuval Mintz sizeof(struct qed_ooo_archipelago), 1211d6cff4fSYuval Mintz GFP_KERNEL); 1221d6cff4fSYuval Mintz if (!p_ooo_info->p_archipelagos_mem) 1231d6cff4fSYuval Mintz goto no_archipelagos_mem; 1241d6cff4fSYuval Mintz 1251d6cff4fSYuval Mintz for (i = 0; i < max_num_archipelagos; i++) { 1261d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_ooo_info->p_archipelagos_mem[i].isles_list); 1271d6cff4fSYuval Mintz list_add_tail(&p_ooo_info->p_archipelagos_mem[i].list_entry, 1281d6cff4fSYuval Mintz &p_ooo_info->free_archipelagos_list); 1291d6cff4fSYuval Mintz } 1301d6cff4fSYuval Mintz 1311d6cff4fSYuval Mintz p_ooo_info->ooo_history.p_cqes = 1321d6cff4fSYuval Mintz kcalloc(QED_MAX_NUM_OOO_HISTORY_ENTRIES, 1331d6cff4fSYuval Mintz sizeof(struct ooo_opaque), 1341d6cff4fSYuval Mintz GFP_KERNEL); 1351d6cff4fSYuval Mintz if (!p_ooo_info->ooo_history.p_cqes) 1361d6cff4fSYuval Mintz goto no_history_mem; 1371d6cff4fSYuval Mintz 1381d6cff4fSYuval Mintz return p_ooo_info; 1391d6cff4fSYuval Mintz 1401d6cff4fSYuval Mintz no_history_mem: 1411d6cff4fSYuval Mintz kfree(p_ooo_info->p_archipelagos_mem); 1421d6cff4fSYuval Mintz no_archipelagos_mem: 1431d6cff4fSYuval Mintz kfree(p_ooo_info->p_isles_mem); 1441d6cff4fSYuval Mintz no_isles_mem: 1451d6cff4fSYuval Mintz kfree(p_ooo_info); 1461d6cff4fSYuval Mintz return NULL; 1471d6cff4fSYuval Mintz } 1481d6cff4fSYuval Mintz 1491d6cff4fSYuval Mintz void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn, 1501d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, u32 cid) 1511d6cff4fSYuval Mintz { 1521d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago; 1531d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer; 1541d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle; 1551d6cff4fSYuval Mintz bool b_found = false; 1561d6cff4fSYuval Mintz 1571d6cff4fSYuval Mintz if (list_empty(&p_ooo_info->archipelagos_list)) 1581d6cff4fSYuval Mintz return; 1591d6cff4fSYuval Mintz 1601d6cff4fSYuval Mintz list_for_each_entry(p_archipelago, 1611d6cff4fSYuval Mintz &p_ooo_info->archipelagos_list, list_entry) { 1621d6cff4fSYuval Mintz if (p_archipelago->cid == cid) { 1631d6cff4fSYuval Mintz list_del(&p_archipelago->list_entry); 1641d6cff4fSYuval Mintz b_found = true; 1651d6cff4fSYuval Mintz break; 1661d6cff4fSYuval Mintz } 1671d6cff4fSYuval Mintz } 1681d6cff4fSYuval Mintz 1691d6cff4fSYuval Mintz if (!b_found) 1701d6cff4fSYuval Mintz return; 1711d6cff4fSYuval Mintz 1721d6cff4fSYuval Mintz while (!list_empty(&p_archipelago->isles_list)) { 1731d6cff4fSYuval Mintz p_isle = list_first_entry(&p_archipelago->isles_list, 1741d6cff4fSYuval Mintz struct qed_ooo_isle, list_entry); 1751d6cff4fSYuval Mintz 1761d6cff4fSYuval Mintz list_del(&p_isle->list_entry); 1771d6cff4fSYuval Mintz 1781d6cff4fSYuval Mintz while (!list_empty(&p_isle->buffers_list)) { 1791d6cff4fSYuval Mintz p_buffer = list_first_entry(&p_isle->buffers_list, 1801d6cff4fSYuval Mintz struct qed_ooo_buffer, 1811d6cff4fSYuval Mintz list_entry); 1821d6cff4fSYuval Mintz 1831d6cff4fSYuval Mintz if (!p_buffer) 1841d6cff4fSYuval Mintz break; 1851d6cff4fSYuval Mintz 1861d6cff4fSYuval Mintz list_del(&p_buffer->list_entry); 1871d6cff4fSYuval Mintz list_add_tail(&p_buffer->list_entry, 1881d6cff4fSYuval Mintz &p_ooo_info->free_buffers_list); 1891d6cff4fSYuval Mintz } 1901d6cff4fSYuval Mintz list_add_tail(&p_isle->list_entry, 1911d6cff4fSYuval Mintz &p_ooo_info->free_isles_list); 1921d6cff4fSYuval Mintz } 1931d6cff4fSYuval Mintz 1941d6cff4fSYuval Mintz list_add_tail(&p_archipelago->list_entry, 1951d6cff4fSYuval Mintz &p_ooo_info->free_archipelagos_list); 1961d6cff4fSYuval Mintz } 1971d6cff4fSYuval Mintz 1981d6cff4fSYuval Mintz void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn, 1991d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info) 2001d6cff4fSYuval Mintz { 2011d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_arch; 2021d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer; 2031d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle; 2041d6cff4fSYuval Mintz 2051d6cff4fSYuval Mintz while (!list_empty(&p_ooo_info->archipelagos_list)) { 2061d6cff4fSYuval Mintz p_arch = list_first_entry(&p_ooo_info->archipelagos_list, 2071d6cff4fSYuval Mintz struct qed_ooo_archipelago, 2081d6cff4fSYuval Mintz list_entry); 2091d6cff4fSYuval Mintz 2101d6cff4fSYuval Mintz list_del(&p_arch->list_entry); 2111d6cff4fSYuval Mintz 2121d6cff4fSYuval Mintz while (!list_empty(&p_arch->isles_list)) { 2131d6cff4fSYuval Mintz p_isle = list_first_entry(&p_arch->isles_list, 2141d6cff4fSYuval Mintz struct qed_ooo_isle, 2151d6cff4fSYuval Mintz list_entry); 2161d6cff4fSYuval Mintz 2171d6cff4fSYuval Mintz list_del(&p_isle->list_entry); 2181d6cff4fSYuval Mintz 2191d6cff4fSYuval Mintz while (!list_empty(&p_isle->buffers_list)) { 2201d6cff4fSYuval Mintz p_buffer = 2211d6cff4fSYuval Mintz list_first_entry(&p_isle->buffers_list, 2221d6cff4fSYuval Mintz struct qed_ooo_buffer, 2231d6cff4fSYuval Mintz list_entry); 2241d6cff4fSYuval Mintz 2251d6cff4fSYuval Mintz if (!p_buffer) 2261d6cff4fSYuval Mintz break; 2271d6cff4fSYuval Mintz 2281d6cff4fSYuval Mintz list_del(&p_buffer->list_entry); 2291d6cff4fSYuval Mintz list_add_tail(&p_buffer->list_entry, 2301d6cff4fSYuval Mintz &p_ooo_info->free_buffers_list); 2311d6cff4fSYuval Mintz } 2321d6cff4fSYuval Mintz list_add_tail(&p_isle->list_entry, 2331d6cff4fSYuval Mintz &p_ooo_info->free_isles_list); 2341d6cff4fSYuval Mintz } 2351d6cff4fSYuval Mintz list_add_tail(&p_arch->list_entry, 2361d6cff4fSYuval Mintz &p_ooo_info->free_archipelagos_list); 2371d6cff4fSYuval Mintz } 2381d6cff4fSYuval Mintz if (!list_empty(&p_ooo_info->ready_buffers_list)) 2391d6cff4fSYuval Mintz list_splice_tail_init(&p_ooo_info->ready_buffers_list, 2401d6cff4fSYuval Mintz &p_ooo_info->free_buffers_list); 2411d6cff4fSYuval Mintz } 2421d6cff4fSYuval Mintz 2431d6cff4fSYuval Mintz void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info) 2441d6cff4fSYuval Mintz { 2451d6cff4fSYuval Mintz qed_ooo_release_all_isles(p_hwfn, p_ooo_info); 2461d6cff4fSYuval Mintz memset(p_ooo_info->ooo_history.p_cqes, 0, 2471d6cff4fSYuval Mintz p_ooo_info->ooo_history.num_of_cqes * 2481d6cff4fSYuval Mintz sizeof(struct ooo_opaque)); 2491d6cff4fSYuval Mintz p_ooo_info->ooo_history.head_idx = 0; 2501d6cff4fSYuval Mintz } 2511d6cff4fSYuval Mintz 2521d6cff4fSYuval Mintz void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info) 2531d6cff4fSYuval Mintz { 2541d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer; 2551d6cff4fSYuval Mintz 2561d6cff4fSYuval Mintz qed_ooo_release_all_isles(p_hwfn, p_ooo_info); 2571d6cff4fSYuval Mintz while (!list_empty(&p_ooo_info->free_buffers_list)) { 2581d6cff4fSYuval Mintz p_buffer = list_first_entry(&p_ooo_info->free_buffers_list, 2591d6cff4fSYuval Mintz struct qed_ooo_buffer, list_entry); 2601d6cff4fSYuval Mintz 2611d6cff4fSYuval Mintz if (!p_buffer) 2621d6cff4fSYuval Mintz break; 2631d6cff4fSYuval Mintz 2641d6cff4fSYuval Mintz list_del(&p_buffer->list_entry); 2651d6cff4fSYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 2661d6cff4fSYuval Mintz p_buffer->rx_buffer_size, 2671d6cff4fSYuval Mintz p_buffer->rx_buffer_virt_addr, 2681d6cff4fSYuval Mintz p_buffer->rx_buffer_phys_addr); 2691d6cff4fSYuval Mintz kfree(p_buffer); 2701d6cff4fSYuval Mintz } 2711d6cff4fSYuval Mintz 2721d6cff4fSYuval Mintz kfree(p_ooo_info->p_isles_mem); 2731d6cff4fSYuval Mintz kfree(p_ooo_info->p_archipelagos_mem); 2741d6cff4fSYuval Mintz kfree(p_ooo_info->ooo_history.p_cqes); 2751d6cff4fSYuval Mintz kfree(p_ooo_info); 2761d6cff4fSYuval Mintz } 2771d6cff4fSYuval Mintz 2781d6cff4fSYuval Mintz void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn, 2791d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 2801d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer) 2811d6cff4fSYuval Mintz { 2821d6cff4fSYuval Mintz list_add_tail(&p_buffer->list_entry, &p_ooo_info->free_buffers_list); 2831d6cff4fSYuval Mintz } 2841d6cff4fSYuval Mintz 2851d6cff4fSYuval Mintz struct qed_ooo_buffer *qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn, 2861d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info) 2871d6cff4fSYuval Mintz { 2881d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer = NULL; 2891d6cff4fSYuval Mintz 2901d6cff4fSYuval Mintz if (!list_empty(&p_ooo_info->free_buffers_list)) { 2911d6cff4fSYuval Mintz p_buffer = list_first_entry(&p_ooo_info->free_buffers_list, 2921d6cff4fSYuval Mintz struct qed_ooo_buffer, list_entry); 2931d6cff4fSYuval Mintz 2941d6cff4fSYuval Mintz list_del(&p_buffer->list_entry); 2951d6cff4fSYuval Mintz } 2961d6cff4fSYuval Mintz 2971d6cff4fSYuval Mintz return p_buffer; 2981d6cff4fSYuval Mintz } 2991d6cff4fSYuval Mintz 3001d6cff4fSYuval Mintz void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn, 3011d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 3021d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer, u8 on_tail) 3031d6cff4fSYuval Mintz { 3041d6cff4fSYuval Mintz if (on_tail) 3051d6cff4fSYuval Mintz list_add_tail(&p_buffer->list_entry, 3061d6cff4fSYuval Mintz &p_ooo_info->ready_buffers_list); 3071d6cff4fSYuval Mintz else 3081d6cff4fSYuval Mintz list_add(&p_buffer->list_entry, 3091d6cff4fSYuval Mintz &p_ooo_info->ready_buffers_list); 3101d6cff4fSYuval Mintz } 3111d6cff4fSYuval Mintz 3121d6cff4fSYuval Mintz struct qed_ooo_buffer *qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn, 3131d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info) 3141d6cff4fSYuval Mintz { 3151d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer = NULL; 3161d6cff4fSYuval Mintz 3171d6cff4fSYuval Mintz if (!list_empty(&p_ooo_info->ready_buffers_list)) { 3181d6cff4fSYuval Mintz p_buffer = list_first_entry(&p_ooo_info->ready_buffers_list, 3191d6cff4fSYuval Mintz struct qed_ooo_buffer, list_entry); 3201d6cff4fSYuval Mintz 3211d6cff4fSYuval Mintz list_del(&p_buffer->list_entry); 3221d6cff4fSYuval Mintz } 3231d6cff4fSYuval Mintz 3241d6cff4fSYuval Mintz return p_buffer; 3251d6cff4fSYuval Mintz } 3261d6cff4fSYuval Mintz 3271d6cff4fSYuval Mintz void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn, 3281d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 3291d6cff4fSYuval Mintz u32 cid, u8 drop_isle, u8 drop_size) 3301d6cff4fSYuval Mintz { 3311d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago = NULL; 3321d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle = NULL; 3331d6cff4fSYuval Mintz u8 isle_idx; 3341d6cff4fSYuval Mintz 3351d6cff4fSYuval Mintz p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid); 3361d6cff4fSYuval Mintz for (isle_idx = 0; isle_idx < drop_size; isle_idx++) { 3371d6cff4fSYuval Mintz p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, drop_isle); 3381d6cff4fSYuval Mintz if (!p_isle) { 3391d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 3401d6cff4fSYuval Mintz "Isle %d is not found(cid %d)\n", 3411d6cff4fSYuval Mintz drop_isle, cid); 3421d6cff4fSYuval Mintz return; 3431d6cff4fSYuval Mintz } 3441d6cff4fSYuval Mintz if (list_empty(&p_isle->buffers_list)) 3451d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 3461d6cff4fSYuval Mintz "Isle %d is empty(cid %d)\n", drop_isle, cid); 3471d6cff4fSYuval Mintz else 3481d6cff4fSYuval Mintz list_splice_tail_init(&p_isle->buffers_list, 3491d6cff4fSYuval Mintz &p_ooo_info->free_buffers_list); 3501d6cff4fSYuval Mintz 3511d6cff4fSYuval Mintz list_del(&p_isle->list_entry); 3521d6cff4fSYuval Mintz p_ooo_info->cur_isles_number--; 3531d6cff4fSYuval Mintz list_add(&p_isle->list_entry, &p_ooo_info->free_isles_list); 3541d6cff4fSYuval Mintz } 3551d6cff4fSYuval Mintz 3561d6cff4fSYuval Mintz if (list_empty(&p_archipelago->isles_list)) { 3571d6cff4fSYuval Mintz list_del(&p_archipelago->list_entry); 3581d6cff4fSYuval Mintz list_add(&p_archipelago->list_entry, 3591d6cff4fSYuval Mintz &p_ooo_info->free_archipelagos_list); 3601d6cff4fSYuval Mintz } 3611d6cff4fSYuval Mintz } 3621d6cff4fSYuval Mintz 3631d6cff4fSYuval Mintz void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn, 3641d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 3651d6cff4fSYuval Mintz u32 cid, u8 ooo_isle, 3661d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer) 3671d6cff4fSYuval Mintz { 3681d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago = NULL; 3691d6cff4fSYuval Mintz struct qed_ooo_isle *p_prev_isle = NULL; 3701d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle = NULL; 3711d6cff4fSYuval Mintz 3721d6cff4fSYuval Mintz if (ooo_isle > 1) { 3731d6cff4fSYuval Mintz p_prev_isle = qed_ooo_seek_isle(p_hwfn, 3741d6cff4fSYuval Mintz p_ooo_info, cid, ooo_isle - 1); 3751d6cff4fSYuval Mintz if (!p_prev_isle) { 3761d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 3771d6cff4fSYuval Mintz "Isle %d is not found(cid %d)\n", 3781d6cff4fSYuval Mintz ooo_isle - 1, cid); 3791d6cff4fSYuval Mintz return; 3801d6cff4fSYuval Mintz } 3811d6cff4fSYuval Mintz } 3821d6cff4fSYuval Mintz p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid); 3831d6cff4fSYuval Mintz if (!p_archipelago && (ooo_isle != 1)) { 3841d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 3851d6cff4fSYuval Mintz "Connection %d is not found in OOO list\n", cid); 3861d6cff4fSYuval Mintz return; 3871d6cff4fSYuval Mintz } 3881d6cff4fSYuval Mintz 3891d6cff4fSYuval Mintz if (!list_empty(&p_ooo_info->free_isles_list)) { 3901d6cff4fSYuval Mintz p_isle = list_first_entry(&p_ooo_info->free_isles_list, 3911d6cff4fSYuval Mintz struct qed_ooo_isle, list_entry); 3921d6cff4fSYuval Mintz 3931d6cff4fSYuval Mintz list_del(&p_isle->list_entry); 3941d6cff4fSYuval Mintz if (!list_empty(&p_isle->buffers_list)) { 3951d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, "Free isle is not empty\n"); 3961d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_isle->buffers_list); 3971d6cff4fSYuval Mintz } 3981d6cff4fSYuval Mintz } else { 3991d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, "No more free isles\n"); 4001d6cff4fSYuval Mintz return; 4011d6cff4fSYuval Mintz } 4021d6cff4fSYuval Mintz 4031d6cff4fSYuval Mintz if (!p_archipelago && 4041d6cff4fSYuval Mintz !list_empty(&p_ooo_info->free_archipelagos_list)) { 4051d6cff4fSYuval Mintz p_archipelago = 4061d6cff4fSYuval Mintz list_first_entry(&p_ooo_info->free_archipelagos_list, 4071d6cff4fSYuval Mintz struct qed_ooo_archipelago, list_entry); 4081d6cff4fSYuval Mintz 4091d6cff4fSYuval Mintz list_del(&p_archipelago->list_entry); 4101d6cff4fSYuval Mintz if (!list_empty(&p_archipelago->isles_list)) { 4111d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 4121d6cff4fSYuval Mintz "Free OOO connection is not empty\n"); 4131d6cff4fSYuval Mintz INIT_LIST_HEAD(&p_archipelago->isles_list); 4141d6cff4fSYuval Mintz } 4151d6cff4fSYuval Mintz p_archipelago->cid = cid; 4161d6cff4fSYuval Mintz list_add(&p_archipelago->list_entry, 4171d6cff4fSYuval Mintz &p_ooo_info->archipelagos_list); 4181d6cff4fSYuval Mintz } else if (!p_archipelago) { 4191d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, "No more free OOO connections\n"); 4201d6cff4fSYuval Mintz list_add(&p_isle->list_entry, 4211d6cff4fSYuval Mintz &p_ooo_info->free_isles_list); 4221d6cff4fSYuval Mintz list_add(&p_buffer->list_entry, 4231d6cff4fSYuval Mintz &p_ooo_info->free_buffers_list); 4241d6cff4fSYuval Mintz return; 4251d6cff4fSYuval Mintz } 4261d6cff4fSYuval Mintz 4271d6cff4fSYuval Mintz list_add(&p_buffer->list_entry, &p_isle->buffers_list); 4281d6cff4fSYuval Mintz p_ooo_info->cur_isles_number++; 4291d6cff4fSYuval Mintz p_ooo_info->gen_isles_number++; 4301d6cff4fSYuval Mintz 4311d6cff4fSYuval Mintz if (p_ooo_info->cur_isles_number > p_ooo_info->max_isles_number) 4321d6cff4fSYuval Mintz p_ooo_info->max_isles_number = p_ooo_info->cur_isles_number; 4331d6cff4fSYuval Mintz 4341d6cff4fSYuval Mintz if (!p_prev_isle) 4351d6cff4fSYuval Mintz list_add(&p_isle->list_entry, &p_archipelago->isles_list); 4361d6cff4fSYuval Mintz else 4371d6cff4fSYuval Mintz list_add(&p_isle->list_entry, &p_prev_isle->list_entry); 4381d6cff4fSYuval Mintz } 4391d6cff4fSYuval Mintz 4401d6cff4fSYuval Mintz void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn, 4411d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, 4421d6cff4fSYuval Mintz u32 cid, 4431d6cff4fSYuval Mintz u8 ooo_isle, 4441d6cff4fSYuval Mintz struct qed_ooo_buffer *p_buffer, u8 buffer_side) 4451d6cff4fSYuval Mintz { 4461d6cff4fSYuval Mintz struct qed_ooo_isle *p_isle = NULL; 4471d6cff4fSYuval Mintz 4481d6cff4fSYuval Mintz p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, ooo_isle); 4491d6cff4fSYuval Mintz if (!p_isle) { 4501d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 4511d6cff4fSYuval Mintz "Isle %d is not found(cid %d)\n", ooo_isle, cid); 4521d6cff4fSYuval Mintz return; 4531d6cff4fSYuval Mintz } 4541d6cff4fSYuval Mintz 4551d6cff4fSYuval Mintz if (buffer_side == QED_OOO_LEFT_BUF) 4561d6cff4fSYuval Mintz list_add(&p_buffer->list_entry, &p_isle->buffers_list); 4571d6cff4fSYuval Mintz else 4581d6cff4fSYuval Mintz list_add_tail(&p_buffer->list_entry, &p_isle->buffers_list); 4591d6cff4fSYuval Mintz } 4601d6cff4fSYuval Mintz 4611d6cff4fSYuval Mintz void qed_ooo_join_isles(struct qed_hwfn *p_hwfn, 4621d6cff4fSYuval Mintz struct qed_ooo_info *p_ooo_info, u32 cid, u8 left_isle) 4631d6cff4fSYuval Mintz { 4641d6cff4fSYuval Mintz struct qed_ooo_archipelago *p_archipelago = NULL; 4651d6cff4fSYuval Mintz struct qed_ooo_isle *p_right_isle = NULL; 4661d6cff4fSYuval Mintz struct qed_ooo_isle *p_left_isle = NULL; 4671d6cff4fSYuval Mintz 4681d6cff4fSYuval Mintz p_right_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, 4691d6cff4fSYuval Mintz left_isle + 1); 4701d6cff4fSYuval Mintz if (!p_right_isle) { 4711d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 4721d6cff4fSYuval Mintz "Right isle %d is not found(cid %d)\n", 4731d6cff4fSYuval Mintz left_isle + 1, cid); 4741d6cff4fSYuval Mintz return; 4751d6cff4fSYuval Mintz } 4761d6cff4fSYuval Mintz 4771d6cff4fSYuval Mintz p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid); 4781d6cff4fSYuval Mintz list_del(&p_right_isle->list_entry); 4791d6cff4fSYuval Mintz p_ooo_info->cur_isles_number--; 4801d6cff4fSYuval Mintz if (left_isle) { 4811d6cff4fSYuval Mintz p_left_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, 4821d6cff4fSYuval Mintz left_isle); 4831d6cff4fSYuval Mintz if (!p_left_isle) { 4841d6cff4fSYuval Mintz DP_NOTICE(p_hwfn, 4851d6cff4fSYuval Mintz "Left isle %d is not found(cid %d)\n", 4861d6cff4fSYuval Mintz left_isle, cid); 4871d6cff4fSYuval Mintz return; 4881d6cff4fSYuval Mintz } 4891d6cff4fSYuval Mintz list_splice_tail_init(&p_right_isle->buffers_list, 4901d6cff4fSYuval Mintz &p_left_isle->buffers_list); 4911d6cff4fSYuval Mintz } else { 4921d6cff4fSYuval Mintz list_splice_tail_init(&p_right_isle->buffers_list, 4931d6cff4fSYuval Mintz &p_ooo_info->ready_buffers_list); 4941d6cff4fSYuval Mintz if (list_empty(&p_archipelago->isles_list)) { 4951d6cff4fSYuval Mintz list_del(&p_archipelago->list_entry); 4961d6cff4fSYuval Mintz list_add(&p_archipelago->list_entry, 4971d6cff4fSYuval Mintz &p_ooo_info->free_archipelagos_list); 4981d6cff4fSYuval Mintz } 4991d6cff4fSYuval Mintz } 5001d6cff4fSYuval Mintz list_add_tail(&p_right_isle->list_entry, &p_ooo_info->free_isles_list); 5011d6cff4fSYuval Mintz } 502