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Message-Id: <bd322eb7d73398dbe6df96fc70b9b095aee4450e.1428930614.git.varun@chelsio.com>
Date: Mon, 13 Apr 2015 19:34:24 +0530
From: Varun Prakash <varun@...lsio.com>
To: netdev@...r.kernel.org, linux-scsi@...r.kernel.org,
linux-rdma@...r.kernel.org
Cc: davem@...emloft.net, JBottomley@...allels.com,
roland@...estorage.com, leedom@...lsio.com, anish@...lsio.com,
hariprasad@...lsio.com, swise@...ngridcomputing.com,
kxie@...lsio.com, praveenm@...lsio.com, kumaras@...lsio.com,
varun@...lsio.com
Subject: [PATCH net-next v2 2/4] cxgb4: add structure and macro definitions for FCoE DDP
This patch adds new header file t4_tcb.h and
structure, macro definitions for FCoE DDP
support in cxgb4 driver.
Signed-off-by: Varun Prakash <varun@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.h | 54 +++++++++++++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 7 ++
drivers/net/ethernet/chelsio/cxgb4/t4_hw.h | 29 +++++++
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 59 +++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h | 90 +++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4_values.h | 3 +
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 9 ++
7 files changed, 250 insertions(+), 1 deletions(-)
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.h
index bf9258a..458c696 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.h
@@ -40,18 +40,70 @@
#define CXGB_FCOE_TXPKT_CSUM_START 28
#define CXGB_FCOE_TXPKT_CSUM_END 8
+#define CXGB_FCOE_ATID 13
+#define CXGB_FCOE_GET_XID(x) ((x) & 0x3FF)
+
+#define CXGB_FCOE_SHIFT_PORTID 11
+#define CXGB_FCOE_MASK_PORTID 0x3
+#define CXGB_FCOE_GET_PORTID(x) \
+ (((x) >> CXGB_FCOE_SHIFT_PORTID) & CXGB_FCOE_MASK_PORTID)
+
+/* # of sentinel invalid page pods at the end of a group of valid page pods */
+#define CXGB_FCOE_NUM_SENTINEL_PPODS 0
+
+#define CXGB_FCOE_PPOD_SIZE sizeof(struct pagepod)
+
+#define CXGB_FCOE_MAX_XCHGS_PORT 1024 /* Per netdev */
+#define CXGB_FCOE_MAX_PAGE_CNT ((10485760) / PAGE_SIZE)
+
+/* ddp flags */
+enum {
+ CXGB_FCOE_DDP_ERROR = (1 << 0),
+ CXGB_FCOE_DDP_TID_VALID = (1 << 1),
+};
+
+struct cxgb_fcoe_ddp {
+ u8 h_source[ETH_ALEN];
+ u8 h_dest[ETH_ALEN];
+ unsigned int sgc;
+ struct scatterlist *sgl;
+ int ddp_len;
+ unsigned int tid;
+ unsigned int nppods;
+ unsigned int npages;
+ unsigned int ppod_tag;
+ unsigned int first_pg_off;
+ unsigned int xfer_len;
+ u16 vlan_tci;
+ u16 xid;
+ u8 d_id[3];
+ u8 flags;
+ dma_addr_t *ppod_gl;
+};
+
/* fcoe flags */
enum {
CXGB_FCOE_ENABLED = (1 << 0),
};
struct cxgb_fcoe {
- u8 flags;
+ u8 flags;
+ struct completion *cmpl;
+ struct cxgb_fcoe_ddp ddp[CXGB_FCOE_MAX_XCHGS_PORT];
};
int cxgb_fcoe_enable(struct net_device *);
int cxgb_fcoe_disable(struct net_device *);
bool cxgb_fcoe_sof_eof_supported(struct adapter *, struct sk_buff *);
+void cxgb_fcoe_init_ddp(struct adapter *);
+void cxgb_fcoe_exit_ddp(struct adapter *);
+void cxgb_fcoe_cpl_act_open_rpl(struct adapter *, unsigned int,
+ unsigned int, unsigned int);
+int cxgb_fcoe_rx_handler(struct sge_rspq *, const __be64 *);
+void cxgb_fcoe_free_ppods(struct adapter *, unsigned int, unsigned int);
+int cxgb_fcoe_ddp_setup(struct net_device *, u16,
+ struct scatterlist *, unsigned int);
+int cxgb_fcoe_ddp_done(struct net_device *, u16);
#endif /* CONFIG_CHELSIO_T4_FCOE */
#endif /* __CXGB4_FCOE_H__ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 78ab4d4..412a740 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -218,6 +218,13 @@ struct cxgb4_virt_res { /* virtualized HW resources */
struct cxgb4_range qp;
struct cxgb4_range cq;
struct cxgb4_range ocq;
+#ifdef CONFIG_CHELSIO_T4_FCOE
+ u8 *ppod_map;
+ u16 *tid2xid;
+ unsigned int toe_nppods;
+ unsigned int fcoe_nppods;
+ spinlock_t ppod_map_lock; /* page pod map lock */
+#endif /* CONFIG_CHELSIO_T4_FCOE */
};
#define OCQ_WIN_OFFSET(pdev, vres) \
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
index 380b15c..133e776 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
@@ -164,6 +164,35 @@ struct rsp_ctrl {
#define QINTR_TIMER_IDX(x) ((x) << 1)
#define QINTR_TIMER_IDX_GET(x) (((x) >> 1) & 0x7)
+/* # of pages a pagepod can hold without needing another pagepod */
+#define PPOD_PAGES 4U
+
+struct pagepod {
+ __be64 vld_tid_pgsz_tag_color;
+ __be64 len_offset;
+ __be64 rsvd;
+ __be64 addr[PPOD_PAGES + 1];
+};
+
+#define PPOD_COLOR_S 0
+#define PPOD_COLOR_V(x) ((x) << PPOD_COLOR_S)
+
+#define PPOD_TAG_S 6
+#define PPOD_TAG_V(x) ((x) << PPOD_TAG_S)
+
+#define PPOD_TID_S 32
+#define PPOD_TID_V(x) ((__u64)(x) << PPOD_TID_S)
+
+#define PPOD_VALID_S 56
+#define PPOD_VALID_V(x) ((__u64)(x) << PPOD_VALID_S)
+#define PPOD_VALID_F PPOD_VALID_V(1ULL)
+
+#define PPOD_LEN_S 32
+#define PPOD_LEN_V(x) ((__u64)(x) << PPOD_LEN_S)
+
+#define PPOD_OFST_S 0
+#define PPOD_OFST_V(x) ((x) << PPOD_OFST_S)
+
/*
* Flash layout.
*/
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index 7e2137d..8142d4e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -74,6 +74,8 @@ enum {
CPL_PASS_ESTABLISH = 0x41,
CPL_RX_DATA_DDP = 0x42,
CPL_PASS_ACCEPT_REQ = 0x44,
+ CPL_RX_FCOE_DDP = 0x46,
+ CPL_FCOE_HDR = 0x47,
CPL_TRACE_PKT_T5 = 0x48,
CPL_RX_ISCSI_DDP = 0x49,
@@ -88,6 +90,7 @@ enum {
CPL_TRACE_PKT = 0xB0,
CPL_ISCSI_DATA = 0xB2,
+ CPL_FCOE_DATA = 0xB3,
CPL_FW4_MSG = 0xC0,
CPL_FW4_PLD = 0xC1,
@@ -227,6 +230,10 @@ struct work_request_hdr {
#define TX_CHAN_S 2
#define TX_CHAN_V(x) ((x) << TX_CHAN_S)
+#define NON_OFFLOAD_S 7
+#define NON_OFFLOAD_V(x) ((x) << NON_OFFLOAD_S)
+#define NON_OFFLOAD_F NON_OFFLOAD_V(1U)
+
#define ULP_MODE_S 8
#define ULP_MODE_V(x) ((x) << ULP_MODE_S)
@@ -417,6 +424,11 @@ struct cpl_t5_act_open_req {
__be64 params;
};
+/* cpl_t5_act_open_req.params field */
+#define AOPEN_FCOEMASK_S 0
+#define AOPEN_FCOEMASK_V(x) ((x) << AOPEN_FCOEMASK_S)
+#define AOPEN_FCOEMASK_F AOPEN_FCOEMASK_V(1U)
+
struct cpl_act_open_req6 {
WR_HDR;
union opcode_tid ot;
@@ -734,6 +746,44 @@ struct cpl_iscsi_hdr {
#define ISCSI_DDP_V(x) ((x) << ISCSI_DDP_S)
#define ISCSI_DDP_F ISCSI_DDP_V(1U)
+struct cpl_fcoe_hdr {
+ struct rss_header rsshdr;
+ union opcode_tid ot;
+ __be16 oxid;
+ __be16 len;
+ __be32 rctl_fctl;
+ __u8 cs_ctl;
+ __u8 df_ctl;
+ __u8 sof;
+ __u8 eof;
+ __be16 seq_cnt;
+ __u8 seq_id;
+ __u8 type;
+ __be32 param;
+};
+
+/* cpl_fcoe_hdr.rctl_fctl fields */
+#define FCOE_FCHDR_RCTL_S 24
+#define FCOE_FCHDR_RCTL_M 0xff
+#define FCOE_FCHDR_RCTL_G(x) \
+ (((x) >> FCOE_FCHDR_RCTL_S) & FCOE_FCHDR_RCTL_M)
+
+#define FCOE_FCHDR_FCTL_S 0
+#define FCOE_FCHDR_FCTL_M 0xffffff
+#define G_FCOE_FCHDR_FCTL(x) \
+ (((x) >> FCOE_FCHDR_FCTL_S) & FCOE_FCHDR_FCTL_M)
+
+struct cpl_rx_fcoe_ddp {
+ struct rss_header rsshdr;
+ union opcode_tid ot;
+ __be16 rsvd;
+ __be16 len;
+ __be32 seq;
+ __be32 ddp_report;
+ __be32 ulp_crc;
+ __be32 ddpvld;
+};
+
struct cpl_rx_data {
union opcode_tid ot;
__be16 rsvd;
@@ -1099,4 +1149,13 @@ struct ulp_mem_io {
#define ULP_MEMIO_DATA_LEN_S 0
#define ULP_MEMIO_DATA_LEN_V(x) ((x) << ULP_MEMIO_DATA_LEN_S)
+struct ulp_txpkt {
+ __be32 cmd_dest;
+ __be32 len;
+};
+
+/* ulp_txpkt.cmd_dest fields */
+#define ULP_TXPKT_DEST_S 16
+#define ULP_TXPKT_DEST_V(x) ((x) << ULP_TXPKT_DEST_S)
+
#endif /* __T4_MSG_H */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
new file mode 100644
index 0000000..1ccd7f3
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the Chelsio T4 Ethernet driver for Linux.
+ *
+ * Copyright (c) 2015 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed 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, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _T4_TCB_DEFS_H
+#define _T4_TCB_DEFS_H
+
+/* 95:32 */
+#define TCB_T_FLAGS_W 1
+
+/* 105:96 */
+#define TCB_RSS_INFO_S 0
+#define TCB_RSS_INFO_M 0x3ffULL
+#define TCB_RSS_INFO_V(x) ((x) << TCB_RSS_INFO_S)
+
+/* 115:112 */
+#define TCB_T_STATE_W 3
+#define TCB_T_STATE_S 16
+#define TCB_T_STATE_M 0xfULL
+#define TCB_T_STATE_V(x) ((x) << TCB_T_STATE_S)
+
+/* 855:832 */
+#define TCB_RX_DDP_BUF0_OFFSET_W 26
+#define TCB_RX_DDP_BUF0_OFFSET_S 0
+#define TCB_RX_DDP_BUF0_OFFSET_M 0xffffffULL
+#define TCB_RX_DDP_BUF0_OFFSET_V(x) ((x) << TCB_RX_DDP_BUF0_OFFSET_S)
+
+/* 879:856 */
+#define TCB_RX_DDP_BUF0_LEN_S 24
+#define TCB_RX_DDP_BUF0_LEN_M 0xffffffULL
+#define TCB_RX_DDP_BUF0_LEN_V(x) ((__u64)(x) << TCB_RX_DDP_BUF0_LEN_S)
+
+/* 903:880 */
+#define TCB_RX_DDP_FLAGS_W 27
+
+/* 991:960 */
+#define TCB_RX_DDP_BUF0_TAG_W 30
+#define TCB_RX_DDP_BUF0_TAG_S 0
+#define TCB_RX_DDP_BUF0_TAG_M 0xffffffffULL
+#define TCB_RX_DDP_BUF0_TAG_V(x) ((x) << TCB_RX_DDP_BUF0_TAG_S)
+
+#define TF_NON_OFFLOAD_S 1
+#define TF_NON_OFFLOAD_V(x) ((x) << TF_NON_OFFLOAD_S)
+
+#define TF_DDP_INDICATE_OUT_S 16
+#define TF_DDP_INDICATE_OUT_V(x) ((x) << TF_DDP_INDICATE_OUT_S)
+
+#define TF_DDP_OFF_S 18
+#define TF_DDP_OFF_V(x) ((x) << TF_DDP_OFF_S)
+
+#define TF_DDP_BUF_INF_S 20
+#define TF_DDP_BUF_INF_V(x) ((x) << TF_DDP_BUF_INF_S)
+
+#define TF_DDP_BUF0_VALID_S 24
+#define TF_DDP_BUF0_VALID_V(x) ((x) << TF_DDP_BUF0_VALID_S)
+
+#define TF_DDP_BUF0_INDICATE_S 25
+#define TF_DDP_BUF0_INDICATE_V(x) ((x) << TF_DDP_BUF0_INDICATE_S)
+
+#endif /* _T4_TCB_DEFS_H */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_values.h b/drivers/net/ethernet/chelsio/cxgb4/t4_values.h
index 19b2dcf..28a8d36 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_values.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_values.h
@@ -61,6 +61,9 @@
#define SGE_TIMERREGS 6
#define TIMERREG_COUNTER0_X 0
+/* Egress Context field values */
+#define IDXSIZE_UNIT_X 64
+
/* T5 and later support a new BAR2-based doorbell mechanism for Egress Queues.
* The User Doorbells are each 128 bytes in length with a Simple Doorbell at
* offsets 8x and a Write Combining single 64-byte Egress Queue Unit
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 03fbfd1..0babf8e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -101,6 +101,7 @@ enum fw_wr_opcodes {
FW_RI_BIND_MW_WR = 0x18,
FW_RI_FR_NSMR_WR = 0x19,
FW_RI_INV_LSTAG_WR = 0x1a,
+ FW_POFCOE_ULPTX_WR = 0x43,
FW_LASTC2E_WR = 0x70
};
@@ -631,6 +632,12 @@ struct fw_eth_tx_pkt_vm_wr {
__be16 vlantci;
};
+struct fw_pofcoe_ulptx_wr {
+ __be32 op_pkd;
+ __be32 equiq_to_len16;
+ __u64 cookie;
+};
+
#define FW_CMD_MAX_TIMEOUT 10000
/*
@@ -985,6 +992,8 @@ enum fw_caps_config_fcoe {
FW_CAPS_CONFIG_FCOE_INITIATOR = 0x00000001,
FW_CAPS_CONFIG_FCOE_TARGET = 0x00000002,
FW_CAPS_CONFIG_FCOE_CTRL_OFLD = 0x00000004,
+ FW_CAPS_CONFIG_POFCOE_INITIATOR = 0x00000008,
+ FW_CAPS_CONFIG_POFCOE_TARGET = 0x00000010,
};
enum fw_memtype_cf {
--
1.7.1
--
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