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-rw-r--r--drivers/net/ethernet/qlogic/Kconfig3
-rw-r--r--drivers/net/ethernet/qlogic/qed/Makefile1
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed.h8
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_dev.c22
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_iscsi.c1277
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_iscsi.h52
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_ll2.c555
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_ll2.h9
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_ooo.c501
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_ooo.h176
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_reg_addr.h2
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_roce.c1
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_spq.c24
-rw-r--r--include/linux/qed/qed_if.h2
-rw-r--r--include/linux/qed/qed_iscsi_if.h229
15 files changed, 2833 insertions, 29 deletions
diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index 32f2a45f4ab2..3cfd10503446 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -110,4 +110,7 @@ config QEDE
config QED_RDMA
bool
+config QED_ISCSI
+ bool
+
endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 967acf322c09..729e43768e99 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -6,3 +6,4 @@ qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
+qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 244dd40ccac3..44c184ebe3b0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -35,6 +35,7 @@ extern const struct qed_common_ops qed_common_ops_pass;
#define QED_WFQ_UNIT 100
+#define ISCSI_BDQ_ID(_port_id) (_port_id)
#define QED_WID_SIZE (1024)
#define QED_PF_DEMS_SIZE (4)
@@ -382,7 +383,9 @@ struct qed_hwfn {
/* Protocol related */
bool using_ll2;
struct qed_ll2_info *p_ll2_info;
+ struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info *p_rdma_info;
+ struct qed_iscsi_info *p_iscsi_info;
struct qed_pf_params pf_params;
bool b_rdma_enabled_in_prs;
@@ -581,6 +584,8 @@ struct qed_dev {
/* Linux specific here */
struct qede_dev *edev;
struct pci_dev *pdev;
+ u32 flags;
+#define QED_FLAG_STORAGE_STARTED (BIT(0))
int msg_enable;
struct pci_params pci_params;
@@ -594,6 +599,7 @@ struct qed_dev {
union {
struct qed_common_cb_ops *common;
struct qed_eth_cb_ops *eth;
+ struct qed_iscsi_cb_ops *iscsi;
} protocol_ops;
void *ops_cookie;
@@ -603,7 +609,7 @@ struct qed_dev {
struct qed_cb_ll2_info *ll2;
u8 ll2_mac_address[ETH_ALEN];
#endif
-
+ DECLARE_HASHTABLE(connections, 10);
const struct firmware *firmware;
u32 rdma_max_sge;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 00b9a67ba359..3b2250021c5f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -29,8 +29,10 @@
#include "qed_hw.h"
#include "qed_init_ops.h"
#include "qed_int.h"
+#include "qed_iscsi.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
@@ -146,6 +148,10 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
+ qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
+ qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
+ }
qed_iov_free(p_hwfn);
qed_dmae_info_free(p_hwfn);
qed_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
@@ -402,6 +408,8 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
+ struct qed_iscsi_info *p_iscsi_info;
+ struct qed_ooo_info *p_ooo_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
#endif
@@ -507,6 +515,16 @@ int qed_resc_alloc(struct qed_dev *cdev)
p_hwfn->p_ll2_info = p_ll2_info;
}
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
+ p_iscsi_info = qed_iscsi_alloc(p_hwfn);
+ if (!p_iscsi_info)
+ goto alloc_no_mem;
+ p_hwfn->p_iscsi_info = p_iscsi_info;
+ p_ooo_info = qed_ooo_alloc(p_hwfn);
+ if (!p_ooo_info)
+ goto alloc_no_mem;
+ p_hwfn->p_ooo_info = p_ooo_info;
+ }
/* DMA info initialization */
rc = qed_dmae_info_alloc(p_hwfn);
@@ -560,6 +578,10 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
+ qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
+ qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
+ }
}
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
new file mode 100644
index 000000000000..00efb1c4c57e
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
@@ -0,0 +1,1277 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/param.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_iscsi_if.h>
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dev_api.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_int.h"
+#include "qed_iscsi.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+#include "qed_sriov.h"
+#include "qed_reg_addr.h"
+
+struct qed_iscsi_conn {
+ struct list_head list_entry;
+ bool free_on_delete;
+
+ u16 conn_id;
+ u32 icid;
+ u32 fw_cid;
+
+ u8 layer_code;
+ u8 offl_flags;
+ u8 connect_mode;
+ u32 initial_ack;
+ dma_addr_t sq_pbl_addr;
+ struct qed_chain r2tq;
+ struct qed_chain xhq;
+ struct qed_chain uhq;
+
+ struct tcp_upload_params *tcp_upload_params_virt_addr;
+ dma_addr_t tcp_upload_params_phys_addr;
+ struct scsi_terminate_extra_params *queue_cnts_virt_addr;
+ dma_addr_t queue_cnts_phys_addr;
+ dma_addr_t syn_phy_addr;
+
+ u16 syn_ip_payload_length;
+ u8 local_mac[6];
+ u8 remote_mac[6];
+ u16 vlan_id;
+ u8 tcp_flags;
+ u8 ip_version;
+ u32 remote_ip[4];
+ u32 local_ip[4];
+ u8 ka_max_probe_cnt;
+ u8 dup_ack_theshold;
+ u32 rcv_next;
+ u32 snd_una;
+ u32 snd_next;
+ u32 snd_max;
+ u32 snd_wnd;
+ u32 rcv_wnd;
+ u32 snd_wl1;
+ u32 cwnd;
+ u32 ss_thresh;
+ u16 srtt;
+ u16 rtt_var;
+ u32 ts_time;
+ u32 ts_recent;
+ u32 ts_recent_age;
+ u32 total_rt;
+ u32 ka_timeout_delta;
+ u32 rt_timeout_delta;
+ u8 dup_ack_cnt;
+ u8 snd_wnd_probe_cnt;
+ u8 ka_probe_cnt;
+ u8 rt_cnt;
+ u32 flow_label;
+ u32 ka_timeout;
+ u32 ka_interval;
+ u32 max_rt_time;
+ u32 initial_rcv_wnd;
+ u8 ttl;
+ u8 tos_or_tc;
+ u16 remote_port;
+ u16 local_port;
+ u16 mss;
+ u8 snd_wnd_scale;
+ u8 rcv_wnd_scale;
+ u32 ts_ticks_per_second;
+ u16 da_timeout_value;
+ u8 ack_frequency;
+
+ u8 update_flag;
+ u8 default_cq;
+ u32 max_seq_size;
+ u32 max_recv_pdu_length;
+ u32 max_send_pdu_length;
+ u32 first_seq_length;
+ u32 exp_stat_sn;
+ u32 stat_sn;
+ u16 physical_q0;
+ u16 physical_q1;
+ u8 abortive_dsconnect;
+};
+
+static int
+qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr,
+ void *event_context, iscsi_event_cb_t async_event_cb)
+{
+ struct iscsi_init_ramrod_params *p_ramrod = NULL;
+ struct scsi_init_func_queues *p_queue = NULL;
+ struct qed_iscsi_pf_params *p_params = NULL;
+ struct iscsi_spe_func_init *p_init = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+ u32 dval;
+ u16 val;
+ u8 i;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_INIT_FUNC,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_init;
+ p_init = &p_ramrod->iscsi_init_spe;
+ p_params = &p_hwfn->pf_params.iscsi_pf_params;
+ p_queue = &p_init->q_params;
+
+ SET_FIELD(p_init->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE);
+ p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC;
+
+ val = p_params->half_way_close_timeout;
+ p_init->half_way_close_timeout = cpu_to_le16(val);
+ p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring;
+ p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring;
+ p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring;
+ p_init->func_params.log_page_size = p_params->log_page_size;
+ val = p_params->num_tasks;
+ p_init->func_params.num_tasks = cpu_to_le16(val);
+ p_init->debug_mode.flags = p_params->debug_mode;
+
+ DMA_REGPAIR_LE(p_queue->glbl_q_params_addr,
+ p_params->glbl_q_params_addr);
+
+ val = p_params->cq_num_entries;
+ p_queue->cq_num_entries = cpu_to_le16(val);
+ val = p_params->cmdq_num_entries;
+ p_queue->cmdq_num_entries = cpu_to_le16(val);
+ p_queue->num_queues = p_params->num_queues;
+ dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
+ p_queue->queue_relative_offset = (u8)dval;
+ p_queue->cq_sb_pi = p_params->gl_rq_pi;
+ p_queue->cmdq_sb_pi = p_params->gl_cmd_pi;
+
+ for (i = 0; i < p_params->num_queues; i++) {
+ val = p_hwfn->sbs_info[i]->igu_sb_id;
+ p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val);
+ }
+
+ p_queue->bdq_resource_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ],
+ p_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
+ p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] =
+ p_params->bdq_pbl_num_entries[BDQ_ID_RQ];
+ val = p_params->bdq_xoff_threshold[BDQ_ID_RQ];
+ p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val);
+ val = p_params->bdq_xon_threshold[BDQ_ID_RQ];
+ p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val);
+
+ DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA],
+ p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
+ p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
+ p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
+ val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
+ p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val);
+ val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
+ p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val);
+ val = p_params->rq_buffer_size;
+ p_queue->rq_buffer_size = cpu_to_le16(val);
+ if (p_params->is_target) {
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
+ } else {
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ }
+ p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer);
+ val = p_params->tx_sws_timer;
+ p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val);
+ p_ramrod->tcp_init.maxfinrt = p_params->max_fin_rt;
+
+ p_hwfn->p_iscsi_info->event_context = event_context;
+ p_hwfn->p_iscsi_info->event_cb = async_event_cb;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_conn_offload *p_ramrod = NULL;
+ struct tcp_offload_params_opt2 *p_tcp2 = NULL;
+ struct tcp_offload_params *p_tcp = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ union qed_qm_pq_params pq_params;
+ u16 pq0_id = 0, pq1_id = 0;
+ dma_addr_t r2tq_pbl_addr;
+ dma_addr_t xhq_pbl_addr;
+ dma_addr_t uhq_pbl_addr;
+ int rc = 0;
+ u32 dval;
+ u16 wval;
+ u8 i;
+ u16 *p;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_offload;
+
+ /* Transmission PQ is the first of the PF */
+ memset(&pq_params, 0, sizeof(pq_params));
+ pq0_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params);
+ p_conn->physical_q0 = cpu_to_le16(pq0_id);
+ p_ramrod->iscsi.physical_q0 = cpu_to_le16(pq0_id);
+
+ /* iSCSI Pure-ACK PQ */
+ pq_params.iscsi.q_idx = 1;
+ pq1_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params);
+ p_conn->physical_q1 = cpu_to_le16(pq1_id);
+ p_ramrod->iscsi.physical_q1 = cpu_to_le16(pq1_id);
+
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN;
+ SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE,
+ p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+
+ DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr);
+
+ r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr);
+
+ xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr);
+
+ uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr);
+
+ p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack);
+ p_ramrod->iscsi.flags = p_conn->offl_flags;
+ p_ramrod->iscsi.default_cq = p_conn->default_cq;
+ p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn);
+
+ if (!GET_FIELD(p_ramrod->iscsi.flags,
+ ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) {
+ p_tcp = &p_ramrod->tcp;
+
+ p = (u16 *)p_conn->local_mac;
+ p_tcp->local_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p = (u16 *)p_conn->remote_mac;
+ p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id);
+
+ p_tcp->flags = p_conn->tcp_flags;
+ p_tcp->ip_version = p_conn->ip_version;
+ for (i = 0; i < 4; i++) {
+ dval = p_conn->remote_ip[i];
+ p_tcp->remote_ip[i] = cpu_to_le32(dval);
+ dval = p_conn->local_ip[i];
+ p_tcp->local_ip[i] = cpu_to_le32(dval);
+ }
+ p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt;
+ p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold;
+
+ p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next);
+ p_tcp->snd_una = cpu_to_le32(p_conn->snd_una);
+ p_tcp->snd_next = cpu_to_le32(p_conn->snd_next);
+ p_tcp->snd_max = cpu_to_le32(p_conn->snd_max);
+ p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd);
+ p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd);
+ p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1);
+ p_tcp->cwnd = cpu_to_le32(p_conn->cwnd);
+ p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh);
+ p_tcp->srtt = cpu_to_le16(p_conn->srtt);
+ p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var);
+ p_tcp->ts_time = cpu_to_le32(p_conn->ts_time);
+ p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent);
+ p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age);
+ p_tcp->total_rt = cpu_to_le32(p_conn->total_rt);
+ dval = p_conn->ka_timeout_delta;
+ p_tcp->ka_timeout_delta = cpu_to_le32(dval);
+ dval = p_conn->rt_timeout_delta;
+ p_tcp->rt_timeout_delta = cpu_to_le32(dval);
+ p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt;
+ p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt;
+ p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt;
+ p_tcp->rt_cnt = p_conn->rt_cnt;
+ p_tcp->flow_label = cpu_to_le32(p_conn->flow_label);
+ p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout);
+ p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval);
+ p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time);
+ dval = p_conn->initial_rcv_wnd;
+ p_tcp->initial_rcv_wnd = cpu_to_le32(dval);
+ p_tcp->ttl = p_conn->ttl;
+ p_tcp->tos_or_tc = p_conn->tos_or_tc;
+ p_tcp->remote_port = cpu_to_le16(p_conn->remote_port);
+ p_tcp->local_port = cpu_to_le16(p_conn->local_port);
+ p_tcp->mss = cpu_to_le16(p_conn->mss);
+ p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale;
+ p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale;
+ dval = p_conn->ts_ticks_per_second;
+ p_tcp->ts_ticks_per_second = cpu_to_le32(dval);
+ wval = p_conn->da_timeout_value;
+ p_tcp->da_timeout_value = cpu_to_le16(wval);
+ p_tcp->ack_frequency = p_conn->ack_frequency;
+ p_tcp->connect_mode = p_conn->connect_mode;
+ } else {
+ p_tcp2 =
+ &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp;
+
+ p = (u16 *)p_conn->local_mac;
+ p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p = (u16 *)p_conn->remote_mac;
+ p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id);
+ p_tcp2->flags = p_conn->tcp_flags;
+
+ p_tcp2->ip_version = p_conn->ip_version;
+ for (i = 0; i < 4; i++) {
+ dval = p_conn->remote_ip[i];
+ p_tcp2->remote_ip[i] = cpu_to_le32(dval);
+ dval = p_conn->local_ip[i];
+ p_tcp2->local_ip[i] = cpu_to_le32(dval);
+ }
+
+ p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label);
+ p_tcp2->ttl = p_conn->ttl;
+ p_tcp2->tos_or_tc = p_conn->tos_or_tc;
+ p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port);
+ p_tcp2->local_port = cpu_to_le16(p_conn->local_port);
+ p_tcp2->mss = cpu_to_le16(p_conn->mss);
+ p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale;
+ p_tcp2->connect_mode = p_conn->connect_mode;
+ wval = p_conn->syn_ip_payload_length;
+ p_tcp2->syn_ip_payload_length = cpu_to_le16(wval);
+ p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr);
+ p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr);
+ }
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_conn_update_ramrod_params *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+ u32 dval;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_update;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN;
+ SET_FIELD(p_ramrod->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+ p_ramrod->flags = p_conn->update_flag;
+ p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size);
+ dval = p_conn->max_recv_pdu_length;
+ p_ramrod->max_recv_pdu_length = cpu_to_le32(dval);
+ dval = p_conn->max_send_pdu_length;
+ p_ramrod->max_send_pdu_length = cpu_to_le32(dval);
+ dval = p_conn->first_seq_length;
+ p_ramrod->first_seq_length = cpu_to_le32(dval);
+ p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_conn_termination *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_TERMINATION_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_terminate;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN;
+ SET_FIELD(p_ramrod->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+ p_ramrod->abortive = p_conn->abortive_dsconnect;
+
+ DMA_REGPAIR_LE(p_ramrod->query_params_addr,
+ p_conn->tcp_upload_params_phys_addr);
+ DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_slow_path_hdr *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_CLEAR_SQ,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_empty;
+ p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ;
+ SET_FIELD(p_ramrod->flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_func_dstry *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_DESTROY_FUNC,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_destroy;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ return (u8 __iomem *)p_hwfn->doorbells +
+ qed_db_addr(cid, DQ_DEMS_LEGACY);
+}
+
+static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id,
+ bdq_id);
+}
+
+static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id,
+ bdq_id);
+}
+
+static int qed_iscsi_setup_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn)
+{
+ if (!p_conn->queue_cnts_virt_addr)
+ goto nomem;
+ memset(p_conn->queue_cnts_virt_addr, 0,
+ sizeof(*p_conn->queue_cnts_virt_addr));
+
+ if (!p_conn->tcp_upload_params_virt_addr)
+ goto nomem;
+ memset(p_conn->tcp_upload_params_virt_addr, 0,
+ sizeof(*p_conn->tcp_upload_params_virt_addr));
+
+ if (!p_conn->r2tq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->r2tq);
+
+ if (!p_conn->uhq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->uhq);
+
+ if (!p_conn->xhq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->xhq);
+
+ return 0;
+nomem:
+ return -ENOMEM;
+}
+
+static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn **p_out_conn)
+{
+ u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0;
+ struct scsi_terminate_extra_params *p_q_cnts = NULL;
+ struct qed_iscsi_pf_params *p_params = NULL;
+ struct tcp_upload_params *p_tcp = NULL;
+ struct qed_iscsi_conn *p_conn = NULL;
+ int rc = 0;
+
+ /* Try finding a free connection that can be used */
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ if (!list_empty(&p_hwfn->p_iscsi_info->free_list))
+ p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list,
+ struct qed_iscsi_conn, list_entry);
+ if (p_conn) {
+ list_del(&p_conn->list_entry);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ *p_out_conn = p_conn;
+ return 0;
+ }
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+
+ /* Need to allocate a new connection */
+ p_params = &p_hwfn->pf_params.iscsi_pf_params;
+
+ p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
+ if (!p_conn)
+ return -ENOMEM;
+
+ p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_q_cnts),
+ &p_conn->queue_cnts_phys_addr,
+ GFP_KERNEL);
+ if (!p_q_cnts)
+ goto nomem_queue_cnts_param;
+ p_conn->queue_cnts_virt_addr = p_q_cnts;
+
+ p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_tcp),
+ &p_conn->tcp_upload_params_phys_addr,
+ GFP_KERNEL);
+ if (!p_tcp)
+ goto nomem_upload_param;
+ p_conn->tcp_upload_params_virt_addr = p_tcp;
+
+ r2tq_num_elements = p_params->num_r2tq_pages_in_ring *
+ QED_CHAIN_PAGE_SIZE / 0x80;
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ r2tq_num_elements, 0x80, &p_conn->r2tq);
+ if (rc)
+ goto nomem_r2tq;
+
+ uhq_num_elements = p_params->num_uhq_pages_in_ring *
+ QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe);
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ uhq_num_elements,
+ sizeof(struct iscsi_uhqe), &p_conn->uhq);
+ if (rc)
+ goto nomem_uhq;
+
+ xhq_num_elements = uhq_num_elements;
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ xhq_num_elements,
+ sizeof(struct iscsi_xhqe), &p_conn->xhq);
+ if (rc)
+ goto nomem;
+
+ p_conn->free_on_delete = true;
+ *p_out_conn = p_conn;
+ return 0;
+
+nomem:
+ qed_chain_free(p_hwfn->cdev, &p_conn->uhq);
+nomem_uhq:
+ qed_chain_free(p_hwfn->cdev, &p_conn->r2tq);
+nomem_r2tq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct tcp_upload_params),
+ p_conn->tcp_upload_params_virt_addr,
+ p_conn->tcp_upload_params_phys_addr);
+nomem_upload_param:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct scsi_terminate_extra_params),
+ p_conn->queue_cnts_virt_addr,
+ p_conn->queue_cnts_phys_addr);
+nomem_queue_cnts_param:
+ kfree(p_conn);
+
+ return -ENOMEM;
+}
+
+static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_in_conn,
+ struct qed_iscsi_conn **p_out_conn)
+{
+ struct qed_iscsi_conn *p_conn = NULL;
+ int rc = 0;
+ u32 icid;
+
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ if (rc)
+ return rc;
+
+ /* Use input connection or allocate a new one */
+ if (p_in_conn)
+ p_conn = p_in_conn;
+ else
+ rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn);
+
+ if (!rc)
+ rc = qed_iscsi_setup_connection(p_hwfn, p_conn);
+
+ if (rc) {
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ qed_cxt_release_cid(p_hwfn, icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ return rc;
+ }
+
+ p_conn->icid = icid;
+ p_conn->conn_id = (u16)icid;
+ p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
+
+ *p_out_conn = p_conn;
+
+ return rc;
+}
+
+static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn)
+{
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list);
+ qed_cxt_release_cid(p_hwfn, p_conn->icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+}
+
+struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_iscsi_info *p_iscsi_info;
+
+ p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL);
+ if (!p_iscsi_info)
+ return NULL;
+
+ INIT_LIST_HEAD(&p_iscsi_info->free_list);
+ return p_iscsi_info;
+}
+
+void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info)
+{
+ spin_lock_init(&p_iscsi_info->lock);
+}
+
+void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info)
+{
+ kfree(p_iscsi_info);
+}
+
+static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct tstorm_iscsi_stats_drv tstats;
+ u32 tstats_addr;
+
+ memset(&tstats, 0, sizeof(tstats));
+ tstats_addr = BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
+
+ p_stats->iscsi_rx_bytes_cnt =
+ HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt);
+ p_stats->iscsi_rx_packet_cnt =
+ HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt);
+ p_stats->iscsi_cmdq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt);
+ p_stats->iscsi_rq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_rq_threshold_cnt);
+ p_stats->iscsi_immq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_immq_threshold_cnt);
+}
+
+static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct mstorm_iscsi_stats_drv mstats;
+ u32 mstats_addr;
+
+ memset(&mstats, 0, sizeof(mstats));
+ mstats_addr = BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats));
+
+ p_stats->iscsi_rx_dropped_pdus_task_not_valid =
+ HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid);
+}
+
+static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct ustorm_iscsi_stats_drv ustats;
+ u32 ustats_addr;
+
+ memset(&ustats, 0, sizeof(ustats));
+ ustats_addr = BAR0_MAP_REG_USDM_RAM +
+ USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats));
+
+ p_stats->iscsi_rx_data_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt);
+ p_stats->iscsi_rx_r2t_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt);
+ p_stats->iscsi_rx_total_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt);
+}
+
+static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct xstorm_iscsi_stats_drv xstats;
+ u32 xstats_addr;
+
+ memset(&xstats, 0, sizeof(xstats));
+ xstats_addr = BAR0_MAP_REG_XSDM_RAM +
+ XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats));
+
+ p_stats->iscsi_tx_go_to_slow_start_event_cnt =
+ HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt);
+ p_stats->iscsi_tx_fast_retransmit_event_cnt =
+ HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt);
+}
+
+static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct ystorm_iscsi_stats_drv ystats;
+ u32 ystats_addr;
+
+ memset(&ystats, 0, sizeof(ystats));
+ ystats_addr = BAR0_MAP_REG_YSDM_RAM +
+ YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats));
+
+ p_stats->iscsi_tx_data_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt);
+ p_stats->iscsi_tx_r2t_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt);
+ p_stats->iscsi_tx_total_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt);
+}
+
+static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct pstorm_iscsi_stats_drv pstats;
+ u32 pstats_addr;
+
+ memset(&pstats, 0, sizeof(pstats));
+ pstats_addr = BAR0_MAP_REG_PSDM_RAM +
+ PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
+
+ p_stats->iscsi_tx_bytes_cnt =
+ HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt);
+ p_stats->iscsi_tx_packet_cnt =
+ HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt);
+}
+
+static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_stats *stats)
+{
+ struct qed_ptt *p_ptt;
+
+ memset(stats, 0, sizeof(*stats));
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt) {
+ DP_ERR(p_hwfn, "Failed to acquire ptt\n");
+ return -EAGAIN;
+ }
+
+ _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats);
+
+ _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return 0;
+}
+
+struct qed_hash_iscsi_con {
+ struct hlist_node node;
+ struct qed_iscsi_conn *con;
+};
+
+static int qed_fill_iscsi_dev_info(struct qed_dev *cdev,
+ struct qed_dev_iscsi_info *info)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+
+ int rc;
+
+ memset(info, 0, sizeof(*info));
+ rc = qed_fill_dev_info(cdev, &info->common);
+
+ info->primary_dbq_rq_addr =
+ qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
+ info->secondary_bdq_rq_addr =
+ qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
+
+ return rc;
+}
+
+static void qed_register_iscsi_ops(struct qed_dev *cdev,
+ struct qed_iscsi_cb_ops *ops, void *cookie)
+{
+ cdev->protocol_ops.iscsi = ops;
+ cdev->ops_cookie = cookie;
+}
+
+static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev,
+ u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con = NULL;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
+ return NULL;
+
+ hash_for_each_possible(cdev->connections, hash_con, node, handle) {
+ if (hash_con->con->icid == handle)
+ break;
+ }
+
+ if (!hash_con || (hash_con->con->icid != handle))
+ return NULL;
+
+ return hash_con;
+}
+
+static int qed_iscsi_stop(struct qed_dev *cdev)
+{
+ int rc;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
+ DP_NOTICE(cdev, "iscsi already stopped\n");
+ return 0;
+ }
+
+ if (!hash_empty(cdev->connections)) {
+ DP_NOTICE(cdev,
+ "Can't stop iscsi - not all connections were returned\n");
+ return -EINVAL;
+ }
+
+ /* Stop the iscsi */
+ rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
+
+ return rc;
+}
+
+static int qed_iscsi_start(struct qed_dev *cdev,
+ struct qed_iscsi_tid *tasks,
+ void *event_context,
+ iscsi_event_cb_t async_event_cb)
+{
+ int rc;
+ struct qed_tid_mem *tid_info;
+
+ if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
+ DP_NOTICE(cdev, "iscsi already started;\n");
+ return 0;
+ }
+
+ rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL, event_context,
+ async_event_cb);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to start iscsi\n");
+ return rc;
+ }
+
+ cdev->flags |= QED_FLAG_STORAGE_STARTED;
+ hash_init(cdev->connections);
+
+ if (!tasks)
+ return 0;
+
+ tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL);
+
+ if (!tid_info) {
+ qed_iscsi_stop(cdev);
+ return -ENOMEM;
+ }
+
+ rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev),
+ tid_info);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to gather task information\n");
+ qed_iscsi_stop(cdev);
+ kfree(tid_info);
+ return rc;
+ }
+
+ /* Fill task information */
+ tasks->size = tid_info->tid_size;
+ tasks->num_tids_per_block = tid_info->num_tids_per_block;
+ memcpy(tasks->blocks, tid_info->blocks,
+ MAX_TID_BLOCKS_ISCSI * sizeof(u8 *));
+
+ kfree(tid_info);
+
+ return 0;
+}
+
+static int qed_iscsi_acquire_conn(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ int rc;
+
+ /* Allocate a hashed connection */
+ hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC);
+ if (!hash_con)
+ return -ENOMEM;
+
+ /* Acquire the connection */
+ rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
+ &hash_con->con);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to acquire Connection\n");
+ kfree(hash_con);
+ return rc;
+ }
+
+ /* Added the connection to hash table */
+ *handle = hash_con->con->icid;
+ *fw_cid = hash_con->con->fw_cid;
+ hash_add(cdev->connections, &hash_con->node, *handle);
+
+ if (p_doorbell)
+ *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev),
+ *handle);
+
+ return 0;
+}
+
+static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hlist_del(&hash_con->node);
+ qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
+ kfree(hash_con);
+
+ return 0;
+}
+
+static int qed_iscsi_offload_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_offload *conn_info)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ struct qed_iscsi_conn *con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+
+ ether_addr_copy(con->local_mac, conn_info->src.mac);
+ ether_addr_copy(con->remote_mac, conn_info->dst.mac);
+ memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip));
+ memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip));
+ con->local_port = conn_info->src.port;
+ con->remote_port = conn_info->dst.port;
+
+ con->layer_code = conn_info->layer_code;
+ con->sq_pbl_addr = conn_info->sq_pbl_addr;
+ con->initial_ack = conn_info->initial_ack;
+ con->vlan_id = conn_info->vlan_id;
+ con->tcp_flags = conn_info->tcp_flags;
+ con->ip_version = conn_info->ip_version;
+ con->default_cq = conn_info->default_cq;
+ con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt;
+ con->dup_ack_theshold = conn_info->dup_ack_theshold;
+ con->rcv_next = conn_info->rcv_next;
+ con->snd_una = conn_info->snd_una;
+ con->snd_next = conn_info->snd_next;
+ con->snd_max = conn_info->snd_max;
+ con->snd_wnd = conn_info->snd_wnd;
+ con->rcv_wnd = conn_info->rcv_wnd;
+ con->snd_wl1 = conn_info->snd_wl1;
+ con->cwnd = conn_info->cwnd;
+ con->ss_thresh = conn_info->ss_thresh;
+ con->srtt = conn_info->srtt;
+ con->rtt_var = conn_info->rtt_var;
+ con->ts_time = conn_info->ts_time;
+ con->ts_recent = conn_info->ts_recent;
+ con->ts_recent_age = conn_info->ts_recent_age;
+ con->total_rt = conn_info->total_rt;
+ con->ka_timeout_delta = conn_info->ka_timeout_delta;
+ con->rt_timeout_delta = conn_info->rt_timeout_delta;
+ con->dup_ack_cnt = conn_info->dup_ack_cnt;
+ con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt;
+ con->ka_probe_cnt = conn_info->ka_probe_cnt;
+ con->rt_cnt = conn_info->rt_cnt;
+ con->flow_label = conn_info->flow_label;
+ con->ka_timeout = conn_info->ka_timeout;
+ con->ka_interval = conn_info->ka_interval;
+ con->max_rt_time = conn_info->max_rt_time;
+ con->initial_rcv_wnd = conn_info->initial_rcv_wnd;
+ con->ttl = conn_info->ttl;
+ con->tos_or_tc = conn_info->tos_or_tc;
+ con->remote_port = conn_info->remote_port;
+ con->local_port = conn_info->local_port;
+ con->mss = conn_info->mss;
+ con->snd_wnd_scale = conn_info->snd_wnd_scale;
+ con->rcv_wnd_scale = conn_info->rcv_wnd_scale;
+ con->ts_ticks_per_second = conn_info->ts_ticks_per_second;
+ con->da_timeout_value = conn_info->da_timeout_value;
+ con->ack_frequency = conn_info->ack_frequency;
+
+ /* Set default values on other connection fields */
+ con->offl_flags = 0x1;
+
+ return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_update_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_update *conn_info)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ struct qed_iscsi_conn *con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+ con->update_flag = conn_info->update_flag;
+ con->max_seq_size = conn_info->max_seq_size;
+ con->max_recv_pdu_length = conn_info->max_recv_pdu_length;
+ con->max_send_pdu_length = conn_info->max_send_pdu_length;
+ con->first_seq_length = conn_info->first_seq_length;
+ con->exp_stat_sn = conn_info->exp_stat_sn;
+
+ return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev),
+ hash_con->con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_destroy_conn(struct qed_dev *cdev,
+ u32 handle, u8 abrt_conn)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hash_con->con->abortive_dsconnect = abrt_conn;
+
+ return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev),
+ hash_con->con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats)
+{
+ return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats);
+}
+
+static const struct qed_iscsi_ops qed_iscsi_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .ll2 = &qed_ll2_ops_pass,
+ .fill_dev_info = &qed_fill_iscsi_dev_info,
+ .register_ops = &qed_register_iscsi_ops,
+ .start = &qed_iscsi_start,
+ .stop = &qed_iscsi_stop,
+ .acquire_conn = &qed_iscsi_acquire_conn,
+ .release_conn = &qed_iscsi_release_conn,
+ .offload_conn = &qed_iscsi_offload_conn,
+ .update_conn = &qed_iscsi_update_conn,
+ .destroy_conn = &qed_iscsi_destroy_conn,
+ .clear_sq = &qed_iscsi_clear_conn_sq,
+ .get_stats = &qed_iscsi_stats,
+};
+
+const struct qed_iscsi_ops *qed_get_iscsi_ops()
+{
+ return &qed_iscsi_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_iscsi_ops);
+
+void qed_put_iscsi_ops(void)
+{
+}
+EXPORT_SYMBOL(qed_put_iscsi_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.h b/drivers/net/ethernet/qlogic/qed/qed_iscsi.h
new file mode 100644
index 000000000000..67c25f3db4d5
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.h
@@ -0,0 +1,52 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_ISCSI_H
+#define _QED_ISCSI_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/tcp_common.h>
+#include <linux/qed/qed_iscsi_if.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+
+struct qed_iscsi_info {
+ spinlock_t lock; /* Connection resources. */
+ struct list_head free_list;
+ u16 max_num_outstanding_tasks;
+ void *event_context;
+ iscsi_event_cb_t event_cb;
+};
+
+#ifdef CONFIG_QED_LL2
+extern const struct qed_ll2_ops qed_ll2_ops_pass;
+#endif
+
+#if IS_ENABLED(CONFIG_QED_ISCSI)
+struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info);
+
+void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info);
+#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
+static inline struct qed_iscsi_info *qed_iscsi_alloc(
+ struct qed_hwfn *p_hwfn) { return NULL; }
+static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info) {}
+static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info) {}
+#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index f95385cbbd40..de4e2a240d88 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -36,6 +36,7 @@
#include "qed_int.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_roce.h"
@@ -296,25 +297,34 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
list_del(&p_pkt->list_entry);
b_last_packet = list_empty(&p_tx->active_descq);
list_add_tail(&p_pkt->list_entry, &p_tx->free_descq);
- p_tx->cur_completing_packet = *p_pkt;
- p_tx->cur_completing_bd_idx = 1;
- b_last_frag = p_tx->cur_completing_bd_idx == p_pkt->bd_used;
- tx_frag = p_pkt->bds_set[0].tx_frag;
- if (p_ll2_conn->gsi_enable)
- qed_ll2b_release_tx_gsi_packet(p_hwfn,
- p_ll2_conn->my_id,
- p_pkt->cookie,
- tx_frag,
- b_last_frag,
- b_last_packet);
- else
- qed_ll2b_complete_tx_packet(p_hwfn,
- p_ll2_conn->my_id,
- p_pkt->cookie,
- tx_frag,
- b_last_frag,
- b_last_packet);
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO) {
+ struct qed_ooo_buffer *p_buffer;
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer);
+ } else {
+ p_tx->cur_completing_packet = *p_pkt;
+ p_tx->cur_completing_bd_idx = 1;
+ b_last_frag =
+ p_tx->cur_completing_bd_idx == p_pkt->bd_used;
+ tx_frag = p_pkt->bds_set[0].tx_frag;
+ if (p_ll2_conn->gsi_enable)
+ qed_ll2b_release_tx_gsi_packet(p_hwfn,
+ p_ll2_conn->
+ my_id,
+ p_pkt->cookie,
+ tx_frag,
+ b_last_frag,
+ b_last_packet);
+ else
+ qed_ll2b_complete_tx_packet(p_hwfn,
+ p_ll2_conn->my_id,
+ p_pkt->cookie,
+ tx_frag,
+ b_last_frag,
+ b_last_packet);
+ }
}
}
@@ -540,12 +550,457 @@ static void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
list_move_tail(&p_pkt->list_entry, &p_rx->free_descq);
- rx_buf_addr = p_pkt->rx_buf_addr;
- cookie = p_pkt->cookie;
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO) {
+ struct qed_ooo_buffer *p_buffer;
+
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer);
+ } else {
+ rx_buf_addr = p_pkt->rx_buf_addr;
+ cookie = p_pkt->cookie;
+
+ b_last = list_empty(&p_rx->active_descq);
+ }
+ }
+}
+
+#if IS_ENABLED(CONFIG_QED_ISCSI)
+static u8 qed_ll2_convert_rx_parse_to_tx_flags(u16 parse_flags)
+{
+ u8 bd_flags = 0;
+
+ if (GET_FIELD(parse_flags, PARSING_AND_ERR_FLAGS_TAG8021QEXIST))
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_VLAN_INSERTION, 1);
+
+ return bd_flags;
+}
+
+static int qed_ll2_lb_rxq_handler(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
+ u16 packet_length = 0, parse_flags = 0, vlan = 0;
+ struct qed_ll2_rx_packet *p_pkt = NULL;
+ u32 num_ooo_add_to_peninsula = 0, cid;
+ union core_rx_cqe_union *cqe = NULL;
+ u16 cq_new_idx = 0, cq_old_idx = 0;
+ struct qed_ooo_buffer *p_buffer;
+ struct ooo_opaque *iscsi_ooo;
+ u8 placement_offset = 0;
+ u8 cqe_type;
+
+ cq_new_idx = le16_to_cpu(*p_rx->p_fw_cons);
+ cq_old_idx = qed_chain_get_cons_idx(&p_rx->rcq_chain);
+ if (cq_new_idx == cq_old_idx)
+ return 0;
+
+ while (cq_new_idx != cq_old_idx) {
+ struct core_rx_fast_path_cqe *p_cqe_fp;
+
+ cqe = qed_chain_consume(&p_rx->rcq_chain);
+ cq_old_idx = qed_chain_get_cons_idx(&p_rx->rcq_chain);
+ cqe_type = cqe->rx_cqe_sp.type;
+
+ if (cqe_type != CORE_RX_CQE_TYPE_REGULAR) {
+ DP_NOTICE(p_hwfn,
+ "Got a non-regular LB LL2 completion [type 0x%02x]\n",
+ cqe_type);
+ return -EINVAL;
+ }
+ p_cqe_fp = &cqe->rx_cqe_fp;
+
+ placement_offset = p_cqe_fp->placement_offset;
+ parse_flags = le16_to_cpu(p_cqe_fp->parse_flags.flags);
+ packet_length = le16_to_cpu(p_cqe_fp->packet_length);
+ vlan = le16_to_cpu(p_cqe_fp->vlan);
+ iscsi_ooo = (struct ooo_opaque *)&p_cqe_fp->opaque_data;
+ qed_ooo_save_history_entry(p_hwfn, p_hwfn->p_ooo_info,
+ iscsi_ooo);
+ cid = le32_to_cpu(iscsi_ooo->cid);
+
+ /* Process delete isle first */
+ if (iscsi_ooo->drop_size)
+ qed_ooo_delete_isles(p_hwfn, p_hwfn->p_ooo_info, cid,
+ iscsi_ooo->drop_isle,
+ iscsi_ooo->drop_size);
+
+ if (iscsi_ooo->ooo_opcode == TCP_EVENT_NOP)
+ continue;
+
+ /* Now process create/add/join isles */
+ if (list_empty(&p_rx->active_descq)) {
+ DP_NOTICE(p_hwfn,
+ "LL2 OOO RX chain has no submitted buffers\n"
+ );
+ return -EIO;
+ }
+
+ p_pkt = list_first_entry(&p_rx->active_descq,
+ struct qed_ll2_rx_packet, list_entry);
+
+ if ((iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_NEW_ISLE) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_RIGHT) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_LEFT) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_PEN) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_JOIN)) {
+ if (!p_pkt) {
+ DP_NOTICE(p_hwfn,
+ "LL2 OOO RX packet is not valid\n");
+ return -EIO;
+ }
+ list_del(&p_pkt->list_entry);
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ p_buffer->packet_length = packet_length;
+ p_buffer->parse_flags = parse_flags;
+ p_buffer->vlan = vlan;
+ p_buffer->placement_offset = placement_offset;
+ qed_chain_consume(&p_rx->rxq_chain);
+ list_add_tail(&p_pkt->list_entry, &p_rx->free_descq);
+
+ switch (iscsi_ooo->ooo_opcode) {
+ case TCP_EVENT_ADD_NEW_ISLE:
+ qed_ooo_add_new_isle(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer);
+ break;
+ case TCP_EVENT_ADD_ISLE_RIGHT:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer,
+ QED_OOO_RIGHT_BUF);
+ break;
+ case TCP_EVENT_ADD_ISLE_LEFT:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer,
+ QED_OOO_LEFT_BUF);
+ break;
+ case TCP_EVENT_JOIN:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle +
+ 1,
+ p_buffer,
+ QED_OOO_LEFT_BUF);
+ qed_ooo_join_isles(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid, iscsi_ooo->ooo_isle);
+ break;
+ case TCP_EVENT_ADD_PEN:
+ num_ooo_add_to_peninsula++;
+ qed_ooo_put_ready_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ p_buffer, true);
+ break;
+ }
+ } else {
+ DP_NOTICE(p_hwfn,
+ "Unexpected event (%d) TX OOO completion\n",
+ iscsi_ooo->ooo_opcode);
+ }
+ }
+
+ return 0;
+}
+
+static void
+qed_ooo_submit_tx_buffers(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+ int rc;
+ u16 l4_hdr_offset_w;
+ dma_addr_t first_frag;
+ u16 parse_flags;
+ u8 bd_flags;
+
+ /* Submit Tx buffers here */
+ while ((p_buffer = qed_ooo_get_ready_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ l4_hdr_offset_w = 0;
+ bd_flags = 0;
+
+ first_frag = p_buffer->rx_buffer_phys_addr +
+ p_buffer->placement_offset;
+ parse_flags = p_buffer->parse_flags;
+ bd_flags = qed_ll2_convert_rx_parse_to_tx_flags(parse_flags);
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_FORCE_VLAN_MODE, 1);
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_L4_PROTOCOL, 1);
+
+ rc = qed_ll2_prepare_tx_packet(p_hwfn, p_ll2_conn->my_id, 1,
+ p_buffer->vlan, bd_flags,
+ l4_hdr_offset_w,
+ p_ll2_conn->tx_dest, 0,
+ first_frag,
+ p_buffer->packet_length,
+ p_buffer, true);
+ if (rc) {
+ qed_ooo_put_ready_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer, false);
+ break;
+ }
+ }
+}
+
+static void
+qed_ooo_submit_rx_buffers(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+ int rc;
+
+ while ((p_buffer = qed_ooo_get_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ rc = qed_ll2_post_rx_buffer(p_hwfn,
+ p_ll2_conn->my_id,
+ p_buffer->rx_buffer_phys_addr,
+ 0, p_buffer, true);
+ if (rc) {
+ qed_ooo_put_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info, p_buffer);
+ break;
+ }
+ }
+}
+
+static int qed_ll2_lb_rxq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
+{
+ struct qed_ll2_info *p_ll2_conn = (struct qed_ll2_info *)p_cookie;
+ int rc;
+
+ rc = qed_ll2_lb_rxq_handler(p_hwfn, p_ll2_conn);
+ if (rc)
+ return rc;
+
+ qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
+ qed_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
+
+ return 0;
+}
+
+static int qed_ll2_lb_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
+{
+ struct qed_ll2_info *p_ll2_conn = (struct qed_ll2_info *)p_cookie;
+ struct qed_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
+ struct qed_ll2_tx_packet *p_pkt = NULL;
+ struct qed_ooo_buffer *p_buffer;
+ bool b_dont_submit_rx = false;
+ u16 new_idx = 0, num_bds = 0;
+ int rc;
+
+ new_idx = le16_to_cpu(*p_tx->p_fw_cons);
+ num_bds = ((s16)new_idx - (s16)p_tx->bds_idx);
+
+ if (!num_bds)
+ return 0;
+
+ while (num_bds) {
+ if (list_empty(&p_tx->active_descq))
+ return -EINVAL;
+
+ p_pkt = list_first_entry(&p_tx->active_descq,
+ struct qed_ll2_tx_packet, list_entry);
+ if (!p_pkt)
+ return -EINVAL;
+
+ if (p_pkt->bd_used != 1) {
+ DP_NOTICE(p_hwfn,
+ "Unexpectedly many BDs(%d) in TX OOO completion\n",
+ p_pkt->bd_used);
+ return -EINVAL;
+ }
+
+ list_del(&p_pkt->list_entry);
+
+ num_bds--;
+ p_tx->bds_idx++;
+ qed_chain_consume(&p_tx->txq_chain);
+
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ list_add_tail(&p_pkt->list_entry, &p_tx->free_descq);
+
+ if (b_dont_submit_rx) {
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer);
+ continue;
+ }
+
+ rc = qed_ll2_post_rx_buffer(p_hwfn, p_ll2_conn->my_id,
+ p_buffer->rx_buffer_phys_addr, 0,
+ p_buffer, true);
+ if (rc != 0) {
+ qed_ooo_put_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info, p_buffer);
+ b_dont_submit_rx = true;
+ }
+ }
+
+ qed_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
+
+ return 0;
+}
+
+static int
+qed_ll2_acquire_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_info,
+ u16 rx_num_ooo_buffers, u16 mtu)
+{
+ struct qed_ooo_buffer *p_buf = NULL;
+ void *p_virt;
+ u16 buf_idx;
+ int rc = 0;
+
+ if (p_ll2_info->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return rc;
+
+ if (!rx_num_ooo_buffers)
+ return -EINVAL;
+
+ for (buf_idx = 0; buf_idx < rx_num_ooo_buffers; buf_idx++) {
+ p_buf = kzalloc(sizeof(*p_buf), GFP_KERNEL);
+ if (!p_buf) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ p_buf->rx_buffer_size = mtu + 26 + ETH_CACHE_LINE_SIZE;
+ p_buf->rx_buffer_size = (p_buf->rx_buffer_size +
+ ETH_CACHE_LINE_SIZE - 1) &
+ ~(ETH_CACHE_LINE_SIZE - 1);
+ p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buf->rx_buffer_size,
+ &p_buf->rx_buffer_phys_addr,
+ GFP_KERNEL);
+ if (!p_virt) {
+ kfree(p_buf);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ p_buf->rx_buffer_virt_addr = p_virt;
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info, p_buf);
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_LL2,
+ "Allocated [%04x] LL2 OOO buffers [each of size 0x%08x]\n",
+ rx_num_ooo_buffers, p_buf->rx_buffer_size);
+
+out:
+ return rc;
+}
+
+static void
+qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ if (p_ll2_conn->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return;
+
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
+}
+
+static void qed_ll2_release_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+
+ if (p_ll2_conn->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return;
+
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ while ((p_buffer = qed_ooo_get_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buffer->rx_buffer_size,
+ p_buffer->rx_buffer_virt_addr,
+ p_buffer->rx_buffer_phys_addr);
+ kfree(p_buffer);
+ }
+}
+
+static void qed_ll2_stop_ooo(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ u8 *handle = &hwfn->pf_params.iscsi_pf_params.ll2_ooo_queue_id;
+
+ DP_VERBOSE(cdev, QED_MSG_STORAGE, "Stopping LL2 OOO queue [%02x]\n",
+ *handle);
+
+ qed_ll2_terminate_connection(hwfn, *handle);
+ qed_ll2_release_connection(hwfn, *handle);
+ *handle = QED_LL2_UNUSED_HANDLE;
+}
+
+static int qed_ll2_start_ooo(struct qed_dev *cdev,
+ struct qed_ll2_params *params)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ u8 *handle = &hwfn->pf_params.iscsi_pf_params.ll2_ooo_queue_id;
+ struct qed_ll2_info *ll2_info;
+ int rc;
+
+ ll2_info = kzalloc(sizeof(*ll2_info), GFP_KERNEL);
+ if (!ll2_info)
+ return -ENOMEM;
+ ll2_info->conn_type = QED_LL2_TYPE_ISCSI_OOO;
+ ll2_info->mtu = params->mtu;
+ ll2_info->rx_drop_ttl0_flg = params->drop_ttl0_packets;
+ ll2_info->rx_vlan_removal_en = params->rx_vlan_stripping;
+ ll2_info->tx_tc = OOO_LB_TC;
+ ll2_info->tx_dest = CORE_TX_DEST_LB;
+
+ rc = qed_ll2_acquire_connection(hwfn, ll2_info,
+ QED_LL2_RX_SIZE, QED_LL2_TX_SIZE,
+ handle);
+ kfree(ll2_info);
+ if (rc) {
+ DP_INFO(cdev, "Failed to acquire LL2 OOO connection\n");
+ goto out;
+ }
- b_last = list_empty(&p_rx->active_descq);
+ rc = qed_ll2_establish_connection(hwfn, *handle);
+ if (rc) {
+ DP_INFO(cdev, "Failed to establist LL2 OOO connection\n");
+ goto fail;
}
+
+ return 0;
+
+fail:
+ qed_ll2_release_connection(hwfn, *handle);
+out:
+ *handle = QED_LL2_UNUSED_HANDLE;
+ return rc;
}
+#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
+static int qed_ll2_lb_rxq_completion(struct qed_hwfn *p_hwfn,
+ void *p_cookie) { return -EINVAL; }
+static int qed_ll2_lb_txq_completion(struct qed_hwfn *p_hwfn,
+ void *p_cookie) { return -EINVAL; }
+static inline int
+qed_ll2_acquire_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_info,
+ u16 rx_num_ooo_buffers, u16 mtu) { return 0; }
+static inline void
+qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn) { return; }
+static inline void
+qed_ll2_release_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn) { return; }
+static inline void qed_ll2_stop_ooo(struct qed_dev *cdev) { return; }
+static inline int qed_ll2_start_ooo(struct qed_dev *cdev,
+ struct qed_ll2_params *params)
+ { return -EINVAL; }
+#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
struct qed_ll2_info *p_ll2_conn,
@@ -588,7 +1043,8 @@ static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->drop_ttl0_flg = p_ll2_conn->rx_drop_ttl0_flg;
p_ramrod->inner_vlan_removal_en = p_ll2_conn->rx_vlan_removal_en;
p_ramrod->queue_id = p_ll2_conn->queue_id;
- p_ramrod->main_func_queue = 1;
+ p_ramrod->main_func_queue = (conn_type == QED_LL2_TYPE_ISCSI_OOO) ? 0
+ : 1;
if ((IS_MF_DEFAULT(p_hwfn) || IS_MF_SI(p_hwfn)) &&
p_ramrod->main_func_queue && (conn_type != QED_LL2_TYPE_ROCE)) {
@@ -619,6 +1075,11 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
if (!QED_LL2_TX_REGISTERED(p_ll2_conn))
return 0;
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO)
+ p_ll2_conn->tx_stats_en = 0;
+ else
+ p_ll2_conn->tx_stats_en = 1;
+
/* Get SPQ entry */
memset(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
@@ -636,7 +1097,6 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->sb_id = cpu_to_le16(qed_int_get_sp_sb_id(p_hwfn));
p_ramrod->sb_index = p_tx->tx_sb_index;
p_ramrod->mtu = cpu_to_le16(p_ll2_conn->mtu);
- p_ll2_conn->tx_stats_en = 1;
p_ramrod->stats_en = p_ll2_conn->tx_stats_en;
p_ramrod->stats_id = p_ll2_conn->tx_stats_id;
@@ -860,9 +1320,19 @@ int qed_ll2_acquire_connection(struct qed_hwfn *p_hwfn,
if (rc)
goto q_allocate_fail;
+ rc = qed_ll2_acquire_connection_ooo(p_hwfn, p_ll2_info,
+ rx_num_desc * 2, p_params->mtu);
+ if (rc)
+ goto q_allocate_fail;
+
/* Register callbacks for the Rx/Tx queues */
- comp_rx_cb = qed_ll2_rxq_completion;
- comp_tx_cb = qed_ll2_txq_completion;
+ if (p_params->conn_type == QED_LL2_TYPE_ISCSI_OOO) {
+ comp_rx_cb = qed_ll2_lb_rxq_completion;
+ comp_tx_cb = qed_ll2_lb_txq_completion;
+ } else {
+ comp_rx_cb = qed_ll2_rxq_completion;
+ comp_tx_cb = qed_ll2_txq_completion;
+ }
if (rx_num_desc) {
qed_int_register_cb(p_hwfn, comp_rx_cb,
@@ -975,6 +1445,8 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
if (p_hwfn->hw_info.personality != QED_PCI_ETH_ROCE)
qed_wr(p_hwfn, p_hwfn->p_main_ptt, PRS_REG_USE_LIGHT_L2, 1);
+ qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
+
return rc;
}
@@ -1213,6 +1685,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_tx_dest e_tx_dest,
enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw)
@@ -1222,6 +1695,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
enum core_roce_flavor_type roce_flavor;
struct qed_ll2_tx_queue *p_tx;
struct qed_chain *p_tx_chain;
+ enum core_tx_dest tx_dest;
unsigned long flags;
int rc = 0;
@@ -1252,6 +1726,8 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
goto out;
}
+ tx_dest = e_tx_dest == QED_LL2_TX_DEST_NW ? CORE_TX_DEST_NW :
+ CORE_TX_DEST_LB;
if (qed_roce_flavor == QED_LL2_ROCE) {
roce_flavor = CORE_ROCE;
} else if (qed_roce_flavor == QED_LL2_RROCE) {
@@ -1266,7 +1742,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
num_of_bds, first_frag,
first_frag_len, cookie, notify_fw);
qed_ll2_prepare_tx_packet_set_bd(p_hwfn, p_ll2_conn, p_curp,
- num_of_bds, CORE_TX_DEST_NW,
+ num_of_bds, tx_dest,
vlan, bd_flags, l4_hdr_offset_w,
roce_flavor,
first_frag, first_frag_len);
@@ -1341,6 +1817,9 @@ int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_ll2_rxq_flush(p_hwfn, connection_handle);
}
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO)
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+
return rc;
}
@@ -1371,6 +1850,8 @@ void qed_ll2_release_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_cxt_release_cid(p_hwfn, p_ll2_conn->cid);
+ qed_ll2_release_connection_ooo(p_hwfn, p_ll2_conn);
+
mutex_lock(&p_ll2_conn->mutex);
p_ll2_conn->b_active = false;
mutex_unlock(&p_ll2_conn->mutex);
@@ -1517,6 +1998,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
enum qed_ll2_conn_type conn_type;
struct qed_ptt *p_ptt;
int rc, i;
+ u8 gsi_enable = 1;
/* Initialize LL2 locks & lists */
INIT_LIST_HEAD(&cdev->ll2->list);
@@ -1548,6 +2030,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
+ gsi_enable = 0;
break;
case QED_PCI_ETH_ROCE:
conn_type = QED_LL2_TYPE_ROCE;
@@ -1564,7 +2047,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
ll2_info.rx_vlan_removal_en = params->rx_vlan_stripping;
ll2_info.tx_tc = 0;
ll2_info.tx_dest = CORE_TX_DEST_NW;
- ll2_info.gsi_enable = 1;
+ ll2_info.gsi_enable = gsi_enable;
rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &ll2_info,
QED_LL2_RX_SIZE, QED_LL2_TX_SIZE,
@@ -1611,6 +2094,17 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
goto release_terminate;
}
+ if (cdev->hwfns[0].hw_info.personality == QED_PCI_ISCSI &&
+ cdev->hwfns[0].pf_params.iscsi_pf_params.ooo_enable) {
+ DP_VERBOSE(cdev, QED_MSG_STORAGE, "Starting OOO LL2 queue\n");
+ rc = qed_ll2_start_ooo(cdev, params);
+ if (rc) {
+ DP_INFO(cdev,
+ "Failed to initialize the OOO LL2 queue\n");
+ goto release_terminate;
+ }
+ }
+
p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
if (!p_ptt) {
DP_INFO(cdev, "Failed to acquire PTT\n");
@@ -1660,6 +2154,10 @@ static int qed_ll2_stop(struct qed_dev *cdev)
qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
eth_zero_addr(cdev->ll2_mac_address);
+ if (cdev->hwfns[0].hw_info.personality == QED_PCI_ISCSI &&
+ cdev->hwfns[0].pf_params.iscsi_pf_params.ooo_enable)
+ qed_ll2_stop_ooo(cdev);
+
rc = qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev),
cdev->ll2->handle);
if (rc)
@@ -1714,7 +2212,8 @@ static int qed_ll2_start_xmit(struct qed_dev *cdev, struct sk_buff *skb)
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev),
cdev->ll2->handle,
1 + skb_shinfo(skb)->nr_frags,
- vlan, flags, 0, 0 /* RoCE FLAVOR */,
+ vlan, flags, 0, QED_LL2_TX_DEST_NW,
+ 0 /* RoCE FLAVOR */,
mapping, skb->len, skb, 1);
if (rc)
goto err;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index 4e3d62a16cab..6625a3ae5a33 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -41,6 +41,12 @@ enum qed_ll2_conn_type {
MAX_QED_LL2_RX_CONN_TYPE
};
+enum qed_ll2_tx_dest {
+ QED_LL2_TX_DEST_NW, /* Light L2 TX Destination to the Network */
+ QED_LL2_TX_DEST_LB, /* Light L2 TX Destination to the Loopback */
+ QED_LL2_TX_DEST_MAX
+};
+
struct qed_ll2_rx_packet {
struct list_head list_entry;
struct core_rx_bd_with_buff_len *rxq_bd;
@@ -192,6 +198,8 @@ int qed_ll2_post_rx_buffer(struct qed_hwfn *p_hwfn,
* @param l4_hdr_offset_w L4 Header Offset from start of packet
* (in words). This is needed if both l4_csum
* and ipv6_ext are set
+ * @param e_tx_dest indicates if the packet is to be transmitted via
+ * loopback or to the network
* @param first_frag
* @param first_frag_len
* @param cookie
@@ -206,6 +214,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_tx_dest e_tx_dest,
enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ooo.c b/drivers/net/ethernet/qlogic/qed/qed_ooo.c
new file mode 100644
index 000000000000..155abcb507fd
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_ooo.c
@@ -0,0 +1,501 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include "qed.h"
+#include "qed_iscsi.h"
+#include "qed_ll2.h"
+#include "qed_ooo.h"
+
+static struct qed_ooo_archipelago
+*qed_ooo_seek_archipelago(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info
+ *p_ooo_info,
+ u32 cid)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+
+ list_for_each_entry(p_archipelago,
+ &p_ooo_info->archipelagos_list, list_entry) {
+ if (p_archipelago->cid == cid)
+ return p_archipelago;
+ }
+
+ return NULL;
+}
+
+static struct qed_ooo_isle *qed_ooo_seek_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 isle)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+ u8 the_num_of_isle = 1;
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ if (!p_archipelago) {
+ DP_NOTICE(p_hwfn,
+ "Connection %d is not found in OOO list\n", cid);
+ return NULL;
+ }
+
+ list_for_each_entry(p_isle, &p_archipelago->isles_list, list_entry) {
+ if (the_num_of_isle == isle)
+ return p_isle;
+ the_num_of_isle++;
+ }
+
+ return NULL;
+}
+
+void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe)
+{
+ struct qed_ooo_history *p_history = &p_ooo_info->ooo_history;
+
+ if (p_history->head_idx == p_history->num_of_cqes)
+ p_history->head_idx = 0;
+ p_history->p_cqes[p_history->head_idx] = *p_cqe;
+ p_history->head_idx++;
+}
+
+struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_ooo_info *p_ooo_info;
+ u16 max_num_archipelagos = 0;
+ u16 max_num_isles = 0;
+ u32 i;
+
+ if (p_hwfn->hw_info.personality != QED_PCI_ISCSI) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate qed_ooo_info: unknown personality\n");
+ return NULL;
+ }
+
+ max_num_archipelagos = p_hwfn->pf_params.iscsi_pf_params.num_cons;
+ max_num_isles = QED_MAX_NUM_ISLES + max_num_archipelagos;
+
+ if (!max_num_archipelagos) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate qed_ooo_info: unknown amount of connections\n");
+ return NULL;
+ }
+
+ p_ooo_info = kzalloc(sizeof(*p_ooo_info), GFP_KERNEL);
+ if (!p_ooo_info)
+ return NULL;
+
+ INIT_LIST_HEAD(&p_ooo_info->free_buffers_list);
+ INIT_LIST_HEAD(&p_ooo_info->ready_buffers_list);
+ INIT_LIST_HEAD(&p_ooo_info->free_isles_list);
+ INIT_LIST_HEAD(&p_ooo_info->free_archipelagos_list);
+ INIT_LIST_HEAD(&p_ooo_info->archipelagos_list);
+
+ p_ooo_info->p_isles_mem = kcalloc(max_num_isles,
+ sizeof(struct qed_ooo_isle),
+ GFP_KERNEL);
+ if (!p_ooo_info->p_isles_mem)
+ goto no_isles_mem;
+
+ for (i = 0; i < max_num_isles; i++) {
+ INIT_LIST_HEAD(&p_ooo_info->p_isles_mem[i].buffers_list);
+ list_add_tail(&p_ooo_info->p_isles_mem[i].list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+
+ p_ooo_info->p_archipelagos_mem =
+ kcalloc(max_num_archipelagos,
+ sizeof(struct qed_ooo_archipelago),
+ GFP_KERNEL);
+ if (!p_ooo_info->p_archipelagos_mem)
+ goto no_archipelagos_mem;
+
+ for (i = 0; i < max_num_archipelagos; i++) {
+ INIT_LIST_HEAD(&p_ooo_info->p_archipelagos_mem[i].isles_list);
+ list_add_tail(&p_ooo_info->p_archipelagos_mem[i].list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+
+ p_ooo_info->ooo_history.p_cqes =
+ kcalloc(QED_MAX_NUM_OOO_HISTORY_ENTRIES,
+ sizeof(struct ooo_opaque),
+ GFP_KERNEL);
+ if (!p_ooo_info->ooo_history.p_cqes)
+ goto no_history_mem;
+
+ return p_ooo_info;
+
+no_history_mem:
+ kfree(p_ooo_info->p_archipelagos_mem);
+no_archipelagos_mem:
+ kfree(p_ooo_info->p_isles_mem);
+no_isles_mem:
+ kfree(p_ooo_info);
+ return NULL;
+}
+
+void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid)
+{
+ struct qed_ooo_archipelago *p_archipelago;
+ struct qed_ooo_buffer *p_buffer;
+ struct qed_ooo_isle *p_isle;
+ bool b_found = false;
+
+ if (list_empty(&p_ooo_info->archipelagos_list))
+ return;
+
+ list_for_each_entry(p_archipelago,
+ &p_ooo_info->archipelagos_list, list_entry) {
+ if (p_archipelago->cid == cid) {
+ list_del(&p_archipelago->list_entry);
+ b_found = true;
+ break;
+ }
+ }
+
+ if (!b_found)
+ return;
+
+ while (!list_empty(&p_archipelago->isles_list)) {
+ p_isle = list_first_entry(&p_archipelago->isles_list,
+ struct qed_ooo_isle, list_entry);
+
+ list_del(&p_isle->list_entry);
+
+ while (!list_empty(&p_isle->buffers_list)) {
+ p_buffer = list_first_entry(&p_isle->buffers_list,
+ struct qed_ooo_buffer,
+ list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ }
+ list_add_tail(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+
+ list_add_tail(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+}
+
+void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_archipelago *p_arch;
+ struct qed_ooo_buffer *p_buffer;
+ struct qed_ooo_isle *p_isle;
+
+ while (!list_empty(&p_ooo_info->archipelagos_list)) {
+ p_arch = list_first_entry(&p_ooo_info->archipelagos_list,
+ struct qed_ooo_archipelago,
+ list_entry);
+
+ list_del(&p_arch->list_entry);
+
+ while (!list_empty(&p_arch->isles_list)) {
+ p_isle = list_first_entry(&p_arch->isles_list,
+ struct qed_ooo_isle,
+ list_entry);
+
+ list_del(&p_isle->list_entry);
+
+ while (!list_empty(&p_isle->buffers_list)) {
+ p_buffer =
+ list_first_entry(&p_isle->buffers_list,
+ struct qed_ooo_buffer,
+ list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ }
+ list_add_tail(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+ list_add_tail(&p_arch->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+ if (!list_empty(&p_ooo_info->ready_buffers_list))
+ list_splice_tail_init(&p_ooo_info->ready_buffers_list,
+ &p_ooo_info->free_buffers_list);
+}
+
+void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info)
+{
+ qed_ooo_release_all_isles(p_hwfn, p_ooo_info);
+ memset(p_ooo_info->ooo_history.p_cqes, 0,
+ p_ooo_info->ooo_history.num_of_cqes *
+ sizeof(struct ooo_opaque));
+ p_ooo_info->ooo_history.head_idx = 0;
+}
+
+void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer;
+
+ qed_ooo_release_all_isles(p_hwfn, p_ooo_info);
+ while (!list_empty(&p_ooo_info->free_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->free_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buffer->rx_buffer_size,
+ p_buffer->rx_buffer_virt_addr,
+ p_buffer->rx_buffer_phys_addr);
+ kfree(p_buffer);
+ }
+
+ kfree(p_ooo_info->p_isles_mem);
+ kfree(p_ooo_info->p_archipelagos_mem);
+ kfree(p_ooo_info->ooo_history.p_cqes);
+ kfree(p_ooo_info);
+}
+
+void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer)
+{
+ list_add_tail(&p_buffer->list_entry, &p_ooo_info->free_buffers_list);
+}
+
+struct qed_ooo_buffer *qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer = NULL;
+
+ if (!list_empty(&p_ooo_info->free_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->free_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ list_del(&p_buffer->list_entry);
+ }
+
+ return p_buffer;
+}
+
+void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer, u8 on_tail)
+{
+ if (on_tail)
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->ready_buffers_list);
+ else
+ list_add(&p_buffer->list_entry,
+ &p_ooo_info->ready_buffers_list);
+}
+
+struct qed_ooo_buffer *qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer = NULL;
+
+ if (!list_empty(&p_ooo_info->ready_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->ready_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ list_del(&p_buffer->list_entry);
+ }
+
+ return p_buffer;
+}
+
+void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+ u8 isle_idx;
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ for (isle_idx = 0; isle_idx < drop_size; isle_idx++) {
+ p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, drop_isle);
+ if (!p_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n",
+ drop_isle, cid);
+ return;
+ }
+ if (list_empty(&p_isle->buffers_list))
+ DP_NOTICE(p_hwfn,
+ "Isle %d is empty(cid %d)\n", drop_isle, cid);
+ else
+ list_splice_tail_init(&p_isle->buffers_list,
+ &p_ooo_info->free_buffers_list);
+
+ list_del(&p_isle->list_entry);
+ p_ooo_info->cur_isles_number--;
+ list_add(&p_isle->list_entry, &p_ooo_info->free_isles_list);
+ }
+
+ if (list_empty(&p_archipelago->isles_list)) {
+ list_del(&p_archipelago->list_entry);
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+}
+
+void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_prev_isle = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+
+ if (ooo_isle > 1) {
+ p_prev_isle = qed_ooo_seek_isle(p_hwfn,
+ p_ooo_info, cid, ooo_isle - 1);
+ if (!p_prev_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n",
+ ooo_isle - 1, cid);
+ return;
+ }
+ }
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ if (!p_archipelago && (ooo_isle != 1)) {
+ DP_NOTICE(p_hwfn,
+ "Connection %d is not found in OOO list\n", cid);
+ return;
+ }
+
+ if (!list_empty(&p_ooo_info->free_isles_list)) {
+ p_isle = list_first_entry(&p_ooo_info->free_isles_list,
+ struct qed_ooo_isle, list_entry);
+
+ list_del(&p_isle->list_entry);
+ if (!list_empty(&p_isle->buffers_list)) {
+ DP_NOTICE(p_hwfn, "Free isle is not empty\n");
+ INIT_LIST_HEAD(&p_isle->buffers_list);
+ }
+ } else {
+ DP_NOTICE(p_hwfn, "No more free isles\n");
+ return;
+ }
+
+ if (!p_archipelago &&
+ !list_empty(&p_ooo_info->free_archipelagos_list)) {
+ p_archipelago =
+ list_first_entry(&p_ooo_info->free_archipelagos_list,
+ struct qed_ooo_archipelago, list_entry);
+
+ list_del(&p_archipelago->list_entry);
+ if (!list_empty(&p_archipelago->isles_list)) {
+ DP_NOTICE(p_hwfn,
+ "Free OOO connection is not empty\n");
+ INIT_LIST_HEAD(&p_archipelago->isles_list);
+ }
+ p_archipelago->cid = cid;
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->archipelagos_list);
+ } else if (!p_archipelago) {
+ DP_NOTICE(p_hwfn, "No more free OOO connections\n");
+ list_add(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ list_add(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ return;
+ }
+
+ list_add(&p_buffer->list_entry, &p_isle->buffers_list);
+ p_ooo_info->cur_isles_number++;
+ p_ooo_info->gen_isles_number++;
+
+ if (p_ooo_info->cur_isles_number > p_ooo_info->max_isles_number)
+ p_ooo_info->max_isles_number = p_ooo_info->cur_isles_number;
+
+ if (!p_prev_isle)
+ list_add(&p_isle->list_entry, &p_archipelago->isles_list);
+ else
+ list_add(&p_isle->list_entry, &p_prev_isle->list_entry);
+}
+
+void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer, u8 buffer_side)
+{
+ struct qed_ooo_isle *p_isle = NULL;
+
+ p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, ooo_isle);
+ if (!p_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n", ooo_isle, cid);
+ return;
+ }
+
+ if (buffer_side == QED_OOO_LEFT_BUF)
+ list_add(&p_buffer->list_entry, &p_isle->buffers_list);
+ else
+ list_add_tail(&p_buffer->list_entry, &p_isle->buffers_list);
+}
+
+void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid, u8 left_isle)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_right_isle = NULL;
+ struct qed_ooo_isle *p_left_isle = NULL;
+
+ p_right_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid,
+ left_isle + 1);
+ if (!p_right_isle) {
+ DP_NOTICE(p_hwfn,
+ "Right isle %d is not found(cid %d)\n",
+ left_isle + 1, cid);
+ return;
+ }
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ list_del(&p_right_isle->list_entry);
+ p_ooo_info->cur_isles_number--;
+ if (left_isle) {
+ p_left_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid,
+ left_isle);
+ if (!p_left_isle) {
+ DP_NOTICE(p_hwfn,
+ "Left isle %d is not found(cid %d)\n",
+ left_isle, cid);
+ return;
+ }
+ list_splice_tail_init(&p_right_isle->buffers_list,
+ &p_left_isle->buffers_list);
+ } else {
+ list_splice_tail_init(&p_right_isle->buffers_list,
+ &p_ooo_info->ready_buffers_list);
+ if (list_empty(&p_archipelago->isles_list)) {
+ list_del(&p_archipelago->list_entry);
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+ }
+ list_add_tail(&p_right_isle->list_entry, &p_ooo_info->free_isles_list);
+}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ooo.h b/drivers/net/ethernet/qlogic/qed/qed_ooo.h
new file mode 100644
index 000000000000..7a0670a9a074
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_ooo.h
@@ -0,0 +1,176 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_OOO_H
+#define _QED_OOO_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include "qed.h"
+
+#define QED_MAX_NUM_ISLES 256
+#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
+
+#define QED_OOO_LEFT_BUF 0
+#define QED_OOO_RIGHT_BUF 1
+
+struct qed_ooo_buffer {
+ struct list_head list_entry;
+ void *rx_buffer_virt_addr;
+ dma_addr_t rx_buffer_phys_addr;
+ u32 rx_buffer_size;
+ u16 packet_length;
+ u16 parse_flags;
+ u16 vlan;
+ u8 placement_offset;
+};
+
+struct qed_ooo_isle {
+ struct list_head list_entry;
+ struct list_head buffers_list;
+};
+
+struct qed_ooo_archipelago {
+ struct list_head list_entry;
+ struct list_head isles_list;
+ u32 cid;
+};
+
+struct qed_ooo_history {
+ struct ooo_opaque *p_cqes;
+ u32 head_idx;
+ u32 num_of_cqes;
+};
+
+struct qed_ooo_info {
+ struct list_head free_buffers_list;
+ struct list_head ready_buffers_list;
+ struct list_head free_isles_list;
+ struct list_head free_archipelagos_list;
+ struct list_head archipelagos_list;
+ struct qed_ooo_archipelago *p_archipelagos_mem;
+ struct qed_ooo_isle *p_isles_mem;
+ struct qed_ooo_history ooo_history;
+ u32 cur_isles_number;
+ u32 max_isles_number;
+ u32 gen_isles_number;
+};
+
+#if IS_ENABLED(CONFIG_QED_ISCSI)
+void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe);
+
+struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid);
+
+void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer);
+
+struct qed_ooo_buffer *
+qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer, u8 on_tail);
+
+struct qed_ooo_buffer *
+qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size);
+
+void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
+
+void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer, u8 buffer_side);
+
+void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid,
+ u8 left_isle);
+#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
+static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe) {}
+
+static inline struct qed_ooo_info *qed_ooo_alloc(
+ struct qed_hwfn *p_hwfn) { return NULL; }
+
+static inline void
+qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid) {}
+
+static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+ {}
+
+static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) {}
+
+static inline void qed_ooo_free(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) {}
+
+static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer) {}
+
+static inline struct qed_ooo_buffer *
+qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) { return NULL; }
+
+static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer,
+ u8 on_tail) {}
+
+static inline struct qed_ooo_buffer *
+qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) { return NULL; }
+
+static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size) {}
+
+static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer) {}
+
+static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer,
+ u8 buffer_side) {}
+
+static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid,
+ u8 left_isle) {}
+#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index b414a0542177..97544205a8c1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -82,6 +82,8 @@
0x1c80000UL
#define BAR0_MAP_REG_XSDM_RAM \
0x1e00000UL
+#define BAR0_MAP_REG_YSDM_RAM \
+ 0x1e80000UL
#define NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF \
0x5011f4UL
#define PRS_REG_SEARCH_TCP \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 6a353ffb87a4..2a16547c8966 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -2771,6 +2771,7 @@ static int qed_roce_ll2_tx(struct qed_dev *cdev,
/* Tx header */
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev), roce_ll2->handle,
1 + pkt->n_seg, 0, flags, 0,
+ QED_LL2_TX_DEST_NW,
qed_roce_flavor, pkt->header.baddr,
pkt->header.len, pkt, 1);
if (rc) {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index 019960b7855a..f022469bdcf8 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -24,7 +24,9 @@
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_int.h"
+#include "qed_iscsi.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
@@ -277,6 +279,28 @@ qed_async_event_completion(struct qed_hwfn *p_hwfn,
return qed_sriov_eqe_event(p_hwfn,
p_eqe->opcode,
p_eqe->echo, &p_eqe->data);
+ case PROTOCOLID_ISCSI:
+ if (!IS_ENABLED(CONFIG_QED_ISCSI))
+ return -EINVAL;
+ if (p_eqe->opcode == ISCSI_EVENT_TYPE_ASYN_DELETE_OOO_ISLES) {
+ u32 cid = le32_to_cpu(p_eqe->data.iscsi_info.cid);
+
+ qed_ooo_release_connection_isles(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid);
+ return 0;
+ }
+
+ if (p_hwfn->p_iscsi_info->event_cb) {
+ struct qed_iscsi_info *p_iscsi = p_hwfn->p_iscsi_info;
+
+ return p_iscsi->event_cb(p_iscsi->event_context,
+ p_eqe->opcode, &p_eqe->data);
+ } else {
+ DP_NOTICE(p_hwfn,
+ "iSCSI async completion is not set\n");
+ return -EINVAL;
+ }
default:
DP_NOTICE(p_hwfn,
"Unknown Async completion for protocol: %d\n",
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index ea095b4893aa..4b454f4f5b25 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -166,6 +166,7 @@ struct qed_iscsi_pf_params {
u32 max_cwnd;
u16 cq_num_entries;
u16 cmdq_num_entries;
+ u32 two_msl_timer;
u16 dup_ack_threshold;
u16 tx_sws_timer;
u16 min_rto;
@@ -275,6 +276,7 @@ struct qed_dev_info {
enum qed_sb_type {
QED_SB_TYPE_L2_QUEUE,
QED_SB_TYPE_CNQ,
+ QED_SB_TYPE_STORAGE,
};
enum qed_protocol {
diff --git a/include/linux/qed/qed_iscsi_if.h b/include/linux/qed/qed_iscsi_if.h
new file mode 100644
index 000000000000..d27912480cb3
--- /dev/null
+++ b/include/linux/qed/qed_iscsi_if.h
@@ -0,0 +1,229 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_ISCSI_IF_H
+#define _QED_ISCSI_IF_H
+#include <linux/types.h>
+#include <linux/qed/qed_if.h>
+
+typedef int (*iscsi_event_cb_t) (void *context,
+ u8 fw_event_code, void *fw_handle);
+struct qed_iscsi_stats {
+ u64 iscsi_rx_bytes_cnt;
+ u64 iscsi_rx_packet_cnt;
+ u64 iscsi_rx_new_ooo_isle_events_cnt;
+ u32 iscsi_cmdq_threshold_cnt;
+ u32 iscsi_rq_threshold_cnt;
+ u32 iscsi_immq_threshold_cnt;
+
+ u64 iscsi_rx_dropped_pdus_task_not_valid;
+
+ u64 iscsi_rx_data_pdu_cnt;
+ u64 iscsi_rx_r2t_pdu_cnt;
+ u64 iscsi_rx_total_pdu_cnt;
+
+ u64 iscsi_tx_go_to_slow_start_event_cnt;
+ u64 iscsi_tx_fast_retransmit_event_cnt;
+
+ u64 iscsi_tx_data_pdu_cnt;
+ u64 iscsi_tx_r2t_pdu_cnt;
+ u64 iscsi_tx_total_pdu_cnt;
+
+ u64 iscsi_tx_bytes_cnt;
+ u64 iscsi_tx_packet_cnt;
+};
+
+struct qed_dev_iscsi_info {
+ struct qed_dev_info common;
+
+ void __iomem *primary_dbq_rq_addr;
+ void __iomem *secondary_bdq_rq_addr;
+};
+
+struct qed_iscsi_id_params {
+ u8 mac[ETH_ALEN];
+ u32 ip[4];
+ u16 port;
+};
+
+struct qed_iscsi_params_offload {
+ u8 layer_code;
+ dma_addr_t sq_pbl_addr;
+ u32 initial_ack;
+
+ struct qed_iscsi_id_params src;
+ struct qed_iscsi_id_params dst;
+ u16 vlan_id;
+ u8 tcp_flags;
+ u8 ip_version;
+ u8 default_cq;
+
+ u8 ka_max_probe_cnt;
+ u8 dup_ack_theshold;
+ u32 rcv_next;
+ u32 snd_una;
+ u32 snd_next;
+ u32 snd_max;
+ u32 snd_wnd;
+ u32 rcv_wnd;
+ u32 snd_wl1;
+ u32 cwnd;
+ u32 ss_thresh;
+ u16 srtt;
+ u16 rtt_var;
+ u32 ts_time;
+ u32 ts_recent;
+ u32 ts_recent_age;
+ u32 total_rt;
+ u32 ka_timeout_delta;
+ u32 rt_timeout_delta;
+ u8 dup_ack_cnt;
+ u8 snd_wnd_probe_cnt;
+ u8 ka_probe_cnt;
+ u8 rt_cnt;
+ u32 flow_label;
+ u32 ka_timeout;
+ u32 ka_interval;
+ u32 max_rt_time;
+ u32 initial_rcv_wnd;
+ u8 ttl;
+ u8 tos_or_tc;
+ u16 remote_port;
+ u16 local_port;
+ u16 mss;
+ u8 snd_wnd_scale;
+ u8 rcv_wnd_scale;
+ u32 ts_ticks_per_second;
+ u16 da_timeout_value;
+ u8 ack_frequency;
+};
+
+struct qed_iscsi_params_update {
+ u8 update_flag;
+#define QED_ISCSI_CONN_HD_EN BIT(0)
+#define QED_ISCSI_CONN_DD_EN BIT(1)
+#define QED_ISCSI_CONN_INITIAL_R2T BIT(2)
+#define QED_ISCSI_CONN_IMMEDIATE_DATA BIT(3)
+
+ u32 max_seq_size;
+ u32 max_recv_pdu_length;
+ u32 max_send_pdu_length;
+ u32 first_seq_length;
+ u32 exp_stat_sn;
+};
+
+#define MAX_TID_BLOCKS_ISCSI (512)
+struct qed_iscsi_tid {
+ u32 size; /* In bytes per task */
+ u32 num_tids_per_block;
+ u8 *blocks[MAX_TID_BLOCKS_ISCSI];
+};
+
+struct qed_iscsi_cb_ops {
+ struct qed_common_cb_ops common;
+};
+
+/**
+ * struct qed_iscsi_ops - qed iSCSI operations.
+ * @common: common operations pointer
+ * @ll2: light L2 operations pointer
+ * @fill_dev_info: fills iSCSI specific information
+ * @param cdev
+ * @param info
+ * @return 0 on sucesss, otherwise error value.
+ * @register_ops: register iscsi operations
+ * @param cdev
+ * @param ops - specified using qed_iscsi_cb_ops
+ * @param cookie - driver private
+ * @start: iscsi in FW
+ * @param cdev
+ * @param tasks - qed will fill information about tasks
+ * return 0 on success, otherwise error value.
+ * @stop: iscsi in FW
+ * @param cdev
+ * return 0 on success, otherwise error value.
+ * @acquire_conn: acquire a new iscsi connection
+ * @param cdev
+ * @param handle - qed will fill handle that should be
+ * used henceforth as identifier of the
+ * connection.
+ * @param p_doorbell - qed will fill the address of the
+ * doorbell.
+ * @return 0 on sucesss, otherwise error value.
+ * @release_conn: release a previously acquired iscsi connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @offload_conn: configures an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * @return 0 on success, otherwise error value.
+ * @update_conn: updates an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * @return 0 on success, otherwise error value.
+ * @destroy_conn: stops an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @clear_sq: clear all task in sq
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @get_stats: iSCSI related statistics
+ * @param cdev
+ * @param stats - pointer to struck that would be filled
+ * we stats
+ * @return 0 on success, error otherwise.
+ */
+struct qed_iscsi_ops {
+ const struct qed_common_ops *common;
+
+ const struct qed_ll2_ops *ll2;
+
+ int (*fill_dev_info)(struct qed_dev *cdev,
+ struct qed_dev_iscsi_info *info);
+
+ void (*register_ops)(struct qed_dev *cdev,
+ struct qed_iscsi_cb_ops *ops, void *cookie);
+
+ int (*start)(struct qed_dev *cdev,
+ struct qed_iscsi_tid *tasks,
+ void *event_context, iscsi_event_cb_t async_event_cb);
+
+ int (*stop)(struct qed_dev *cdev);
+
+ int (*acquire_conn)(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell);
+
+ int (*release_conn)(struct qed_dev *cdev, u32 handle);
+
+ int (*offload_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_offload *conn_info);
+
+ int (*update_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_update *conn_info);
+
+ int (*destroy_conn)(struct qed_dev *cdev, u32 handle, u8 abrt_conn);
+
+ int (*clear_sq)(struct qed_dev *cdev, u32 handle);
+
+ int (*get_stats)(struct qed_dev *cdev,
+ struct qed_iscsi_stats *stats);
+};
+
+const struct qed_iscsi_ops *qed_get_iscsi_ops(void);
+void qed_put_iscsi_ops(void);
+#endif
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-09-26 06:25:16 +0200