X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fcnic.c;h=4b451a7c03e9191ea7e06ebb46245b87a35ce3ea;hb=61c7a080a5a061c976988fd4b844dfb468dda255;hp=6aecef930fa86adc55359e515279154b5f3dc81a;hpb=ddf79b20eefd27797ce461411679a48e998701ca;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 6aecef9..4b451a7 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -1,6 +1,6 @@ /* cnic.c: Broadcom CNIC core network driver. * - * Copyright (c) 2006-2009 Broadcom Corporation + * Copyright (c) 2006-2010 Broadcom Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -327,6 +327,12 @@ static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type, if (l5_cid >= MAX_CM_SK_TBL_SZ) break; + rcu_read_lock(); + if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) { + rc = -ENODEV; + rcu_read_unlock(); + break; + } csk = &cp->csk_tbl[l5_cid]; csk_hold(csk); if (cnic_in_use(csk)) { @@ -341,6 +347,7 @@ static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type, cnic_cm_set_pg(csk); } csk_put(csk); + rcu_read_unlock(); rc = 0; } } @@ -893,7 +900,8 @@ static int cnic_alloc_uio(struct cnic_dev *dev) { uinfo->mem[0].memtype = UIO_MEM_PHYS; if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) { - uinfo->mem[1].addr = (unsigned long) cp->status_blk & PAGE_MASK; + uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen & + PAGE_MASK; if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9; else @@ -1096,10 +1104,9 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev) if (ret) goto error; - cp->bnx2x_status_blk = cp->status_blk; cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk; - memset(cp->bnx2x_status_blk, 0, sizeof(struct host_status_block)); + memset(cp->status_blk.bnx2x, 0, sizeof(*cp->status_blk.bnx2x)); cp->l2_rx_ring_size = 15; @@ -2198,7 +2205,7 @@ static void cnic_service_bnx2_msix(unsigned long data) { struct cnic_dev *dev = (struct cnic_dev *) data; struct cnic_local *cp = dev->cnic_priv; - struct status_block_msix *status_blk = cp->bnx2_status_blk; + struct status_block_msix *status_blk = cp->status_blk.bnx2; u32 status_idx = status_blk->status_idx; u16 hw_prod, sw_prod; int kcqe_cnt; @@ -2244,7 +2251,7 @@ static irqreturn_t cnic_irq(int irq, void *dev_instance) if (cp->ack_int) cp->ack_int(dev); - prefetch(cp->status_blk); + prefetch(cp->status_blk.gen); prefetch(&cp->kcq[KCQ_PG(prod)][KCQ_IDX(prod)]); if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) @@ -2285,7 +2292,7 @@ static void cnic_service_bnx2x_bh(unsigned long data) struct cnic_local *cp = dev->cnic_priv; u16 hw_prod, sw_prod; struct cstorm_status_block_c *sblk = - &cp->bnx2x_status_blk->c_status_block; + &cp->status_blk.bnx2x->c_status_block; u32 status_idx = sblk->status_block_index; int kcqe_cnt; @@ -2327,13 +2334,13 @@ static int cnic_service_bnx2x(void *data, void *status_blk) struct cnic_local *cp = dev->cnic_priv; u16 prod = cp->kcq_prod_idx & MAX_KCQ_IDX; - prefetch(cp->status_blk); - prefetch(&cp->kcq[KCQ_PG(prod)][KCQ_IDX(prod)]); + if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) { + prefetch(cp->status_blk.bnx2x); + prefetch(&cp->kcq[KCQ_PG(prod)][KCQ_IDX(prod)]); - if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) tasklet_schedule(&cp->cnic_irq_task); - - cnic_chk_pkt_rings(cp); + cnic_chk_pkt_rings(cp); + } return 0; } @@ -2507,7 +2514,7 @@ static int cnic_cm_offload_pg(struct cnic_sock *csk) l4kwqe->sa5 = dev->mac_addr[5]; l4kwqe->etype = ETH_P_IP; - l4kwqe->ipid_count = DEF_IPID_COUNT; + l4kwqe->ipid_start = DEF_IPID_START; l4kwqe->host_opaque = csk->l5_cid; if (csk->vlan_id) { @@ -2853,8 +2860,8 @@ static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr) { struct cnic_dev *dev = csk->dev; struct cnic_local *cp = dev->cnic_priv; - int is_v6, err, rc = -ENETUNREACH; - struct dst_entry *dst; + int is_v6, rc = 0; + struct dst_entry *dst = NULL; struct net_device *realdev; u32 local_port; @@ -2870,39 +2877,31 @@ static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr) clear_bit(SK_F_IPV6, &csk->flags); if (is_v6) { -#if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE)) set_bit(SK_F_IPV6, &csk->flags); - err = cnic_get_v6_route(&saddr->remote.v6, &dst); - if (err) - return err; - - if (!dst || dst->error || !dst->dev) - goto err_out; + cnic_get_v6_route(&saddr->remote.v6, &dst); memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr, sizeof(struct in6_addr)); csk->dst_port = saddr->remote.v6.sin6_port; local_port = saddr->local.v6.sin6_port; -#else - return rc; -#endif } else { - err = cnic_get_v4_route(&saddr->remote.v4, &dst); - if (err) - return err; - - if (!dst || dst->error || !dst->dev) - goto err_out; + cnic_get_v4_route(&saddr->remote.v4, &dst); csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr; csk->dst_port = saddr->remote.v4.sin_port; local_port = saddr->local.v4.sin_port; } - csk->vlan_id = cnic_get_vlan(dst->dev, &realdev); - if (realdev != dev->netdev) - goto err_out; + csk->vlan_id = 0; + csk->mtu = dev->netdev->mtu; + if (dst && dst->dev) { + u16 vlan = cnic_get_vlan(dst->dev, &realdev); + if (realdev == dev->netdev) { + csk->vlan_id = vlan; + csk->mtu = dst_mtu(dst); + } + } if (local_port >= CNIC_LOCAL_PORT_MIN && local_port < CNIC_LOCAL_PORT_MAX) { @@ -2920,9 +2919,6 @@ static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr) } csk->src_port = local_port; - csk->mtu = dst_mtu(dst); - rc = 0; - err_out: dst_release(dst); return rc; @@ -3046,6 +3042,14 @@ static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe) clear_bit(SK_F_OFFLD_SCHED, &csk->flags); goto done; } + /* Possible PG kcqe status: SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */ + if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) { + clear_bit(SK_F_OFFLD_SCHED, &csk->flags); + cnic_cm_upcall(cp, csk, + L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE); + goto done; + } + csk->pg_cid = kcqe->pg_cid; set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags); cnic_cm_conn_req(csk); @@ -3083,6 +3087,13 @@ static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe) } switch (opcode) { + case L5CM_RAMROD_CMD_ID_TCP_CONNECT: + if (l4kcqe->status != 0) { + clear_bit(SK_F_OFFLD_SCHED, &csk->flags); + cnic_cm_upcall(cp, csk, + L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE); + } + break; case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE: if (l4kcqe->status == 0) set_bit(SK_F_OFFLD_COMPLETE, &csk->flags); @@ -3093,7 +3104,10 @@ static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe) break; case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED: - if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) + if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) { + cnic_cm_upcall(cp, csk, opcode); + break; + } else if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) csk->state = opcode; /* fall through */ case L4_KCQE_OPCODE_VALUE_CLOSE_COMP: @@ -3157,6 +3171,16 @@ static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode) if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) return 1; } + /* 57710+ only workaround to handle unsolicited RESET_COMP + * which will be treated like a RESET RCVD notification + * which triggers the clean up procedure + */ + else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP) { + if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) { + csk->state = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED; + return 1; + } + } return 0; } @@ -3166,10 +3190,8 @@ static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode) struct cnic_local *cp = dev->cnic_priv; clear_bit(SK_F_CONNECT_START, &csk->flags); - if (cnic_ready_to_close(csk, opcode)) { - cnic_close_conn(csk); - cnic_cm_upcall(cp, csk, opcode); - } + cnic_close_conn(csk); + cnic_cm_upcall(cp, csk, opcode); } static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev) @@ -3387,8 +3409,7 @@ static int cnic_init_bnx2_irq(struct cnic_dev *dev) CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220); CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220); - cp->bnx2_status_blk = cp->status_blk; - cp->last_status_idx = cp->bnx2_status_blk->status_idx; + cp->last_status_idx = cp->status_blk.bnx2->status_idx; tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix, (unsigned long) dev); err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, @@ -3397,7 +3418,7 @@ static int cnic_init_bnx2_irq(struct cnic_dev *dev) tasklet_disable(&cp->cnic_irq_task); return err; } - while (cp->bnx2_status_blk->status_completion_producer_index && + while (cp->status_blk.bnx2->status_completion_producer_index && i < 10) { CNIC_WR(dev, BNX2_HC_COALESCE_NOW, 1 << (11 + sblk_num)); @@ -3405,13 +3426,13 @@ static int cnic_init_bnx2_irq(struct cnic_dev *dev) i++; barrier(); } - if (cp->bnx2_status_blk->status_completion_producer_index) { + if (cp->status_blk.bnx2->status_completion_producer_index) { cnic_free_irq(dev); goto failed; } } else { - struct status_block *sblk = cp->status_blk; + struct status_block *sblk = cp->status_blk.gen; u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND); int i = 0; @@ -3468,7 +3489,7 @@ static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev) int i; struct tx_bd *txbd; dma_addr_t buf_map; - struct status_block *s_blk = cp->status_blk; + struct status_block *s_blk = cp->status_blk.gen; sb_id = cp->status_blk_num; tx_cid = 20; @@ -3476,7 +3497,7 @@ static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev) cnic_init_context(dev, tx_cid + 1); cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2; if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { - struct status_block_msix *sblk = cp->status_blk; + struct status_block_msix *sblk = cp->status_blk.bnx2; tx_cid = TX_TSS_CID + sb_id - 1; cnic_init_context(dev, tx_cid); @@ -3532,7 +3553,7 @@ static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev) u32 cid_addr, sb_id, val, coal_reg, coal_val; int i; struct rx_bd *rxbd; - struct status_block *s_blk = cp->status_blk; + struct status_block *s_blk = cp->status_blk.gen; sb_id = cp->status_blk_num; cnic_init_context(dev, 2); @@ -3540,7 +3561,7 @@ static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev) coal_reg = BNX2_HC_COMMAND; coal_val = CNIC_RD(dev, coal_reg); if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { - struct status_block_msix *sblk = cp->status_blk; + struct status_block_msix *sblk = cp->status_blk.bnx2; cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index; coal_reg = BNX2_HC_COALESCE_NOW; @@ -3639,7 +3660,7 @@ static int cnic_start_bnx2_hw(struct cnic_dev *dev) { struct cnic_local *cp = dev->cnic_priv; struct cnic_eth_dev *ethdev = cp->ethdev; - struct status_block *sblk = cp->status_blk; + struct status_block *sblk = cp->status_blk.gen; u32 val; int err; @@ -4228,7 +4249,7 @@ static int cnic_start_hw(struct cnic_dev *dev) cp->chip_id = ethdev->chip_id; pci_dev_get(dev->pcidev); cp->func = PCI_FUNC(dev->pcidev->devfn); - cp->status_blk = ethdev->irq_arr[0].status_blk; + cp->status_blk.gen = ethdev->irq_arr[0].status_blk; cp->status_blk_num = ethdev->irq_arr[0].status_blk_num; err = cp->alloc_resc(dev);