Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757053AbYFSFog (ORCPT ); Thu, 19 Jun 2008 01:44:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753074AbYFSFoH (ORCPT ); Thu, 19 Jun 2008 01:44:07 -0400 Received: from stargate.chelsio.com ([12.22.49.110]:19851 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498AbYFSFoA convert rfc822-to-8bit (ORCPT ); Thu, 19 Jun 2008 01:44:00 -0400 X-Greylist: delayed 1828 seconds by postgrey-1.27 at vger.kernel.org; Thu, 19 Jun 2008 01:43:58 EDT X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Subject: [PATCH 1/3 2.6.27] cxgb3 - Add iSCSI support Date: Wed, 18 Jun 2008 22:10:08 -0700 Message-ID: <8A71B368A89016469F72CD08050AD334D71286@maui.asicdesigners.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH 1/3 2.6.27] cxgb3 - Add iSCSI support Thread-Index: AcjRt4hOXX8ID028Snq5YPNrC65Z+QACVmVw References: <200806190256.m5J2u1FB021005@localhost.localdomain> From: "Karen Xie" To: , "Divy Le Ray" Cc: , , , , Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5123 Lines: 180 From: Karen Xie Add iSCSI support: - read and write iSCSI related registers - additional types of chelsio-protocol-language used by iscsi. Signed-off-by: Karen Xie --- drivers/net/cxgb3/cxgb3_ctl_defs.h | 5 +--- drivers/net/cxgb3/cxgb3_offload.c | 11 ++++++++++ drivers/net/cxgb3/regs.h | 10 +++++---- drivers/net/cxgb3/t3_cpl.h | 41 ++++++++++++++++++++++++++++++++++++ drivers/net/cxgb3/t3cdev.h | 4 +++- 5 files changed, 62 insertions(+), 9 deletions(-) diff --git a/drivers/net/cxgb3/cxgb3_ctl_defs.h b/drivers/net/cxgb3/cxgb3_ctl_defs.h index 6c4f320..d38e6cc 100644 --- a/drivers/net/cxgb3/cxgb3_ctl_defs.h +++ b/drivers/net/cxgb3/cxgb3_ctl_defs.h @@ -110,10 +110,7 @@ struct ulp_iscsi_info { unsigned int llimit; unsigned int ulimit; unsigned int tagmask; - unsigned int pgsz3; - unsigned int pgsz2; - unsigned int pgsz1; - unsigned int pgsz0; + u8 pgsz_factor[4]; unsigned int max_rxsz; unsigned int max_txsz; struct pci_dev *pdev; diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c index ff9c013..ddf3d2d 100644 --- a/drivers/net/cxgb3/cxgb3_offload.c +++ b/drivers/net/cxgb3/cxgb3_offload.c @@ -207,6 +207,17 @@ static int cxgb_ulp_iscsi_ctl(struct adapter *adapter, unsigned int req, break; case ULP_ISCSI_SET_PARAMS: t3_write_reg(adapter, A_ULPRX_ISCSI_TAGMASK, uiip->tagmask); + /* set MaxRxData and MaxCoalesceSize to 16224 */ + t3_write_reg(adapter, A_TP_PARA_REG2, 0x3f603f60); + /* program the ddp page sizes */ + { + int i; + unsigned int val = 0; + for (i = 0; i < 4; i++) + val |= (uiip->pgsz_factor[i] & 0xF) << (8 * i); + if (val) + t3_write_reg(adapter, A_ULPRX_ISCSI_PSZ, val); + } break; default: ret = -EOPNOTSUPP; diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h index 5671788..4bda27c 100644 --- a/drivers/net/cxgb3/regs.h +++ b/drivers/net/cxgb3/regs.h @@ -1517,16 +1517,18 @@ #define A_ULPRX_ISCSI_TAGMASK 0x514 -#define S_HPZ0 0 -#define M_HPZ0 0xf -#define V_HPZ0(x) ((x) << S_HPZ0) -#define G_HPZ0(x) (((x) >> S_HPZ0) & M_HPZ0) +#define A_ULPRX_ISCSI_PSZ 0x518 #define A_ULPRX_TDDP_LLIMIT 0x51c #define A_ULPRX_TDDP_ULIMIT 0x520 #define A_ULPRX_TDDP_PSZ 0x528 +#define S_HPZ0 0 +#define M_HPZ0 0xf +#define V_HPZ0(x) ((x) << S_HPZ0) +#define G_HPZ0(x) (((x) >> S_HPZ0) & M_HPZ0) + #define A_ULPRX_STAG_LLIMIT 0x52c #define A_ULPRX_STAG_ULIMIT 0x530 diff --git a/drivers/net/cxgb3/t3_cpl.h b/drivers/net/cxgb3/t3_cpl.h index b7a1a31..db25ada 100644 --- a/drivers/net/cxgb3/t3_cpl.h +++ b/drivers/net/cxgb3/t3_cpl.h @@ -184,6 +184,9 @@ union opcode_tid { #define G_OPCODE(x) (((x) >> S_OPCODE) & 0xFF) #define G_TID(x) ((x) & 0xFFFFFF) +#define S_QNUM 0 +#define G_QNUM(x) (((x) >> S_QNUM) & 0xFFFF) + /* tid is assumed to be 24-bits */ #define MK_OPCODE_TID(opcode, tid) (V_OPCODE(opcode) | (tid)) @@ -768,6 +771,12 @@ struct tx_data_wr { __be32 param; }; +/* tx_data_wr.flags fields */ +#define S_TX_ACK_PAGES 21 +#define M_TX_ACK_PAGES 0x7 +#define V_TX_ACK_PAGES(x) ((x) << S_TX_ACK_PAGES) +#define G_TX_ACK_PAGES(x) (((x) >> S_TX_ACK_PAGES) & M_TX_ACK_PAGES) + /* tx_data_wr.param fields */ #define S_TX_PORT 0 #define M_TX_PORT 0x7 @@ -1441,4 +1450,36 @@ struct cpl_rdma_terminate { #define M_TERM_TID 0xFFFFF #define V_TERM_TID(x) ((x) << S_TERM_TID) #define G_TERM_TID(x) (((x) >> S_TERM_TID) & M_TERM_TID) + +/* ULP_TX opcodes */ +enum { ULP_MEM_READ = 2, ULP_MEM_WRITE = 3, ULP_TXPKT = 4 }; + +#define S_ULPTX_CMD 28 +#define M_ULPTX_CMD 0xF +#define V_ULPTX_CMD(x) ((x) << S_ULPTX_CMD) + +#define S_ULPTX_NFLITS 0 +#define M_ULPTX_NFLITS 0xFF +#define V_ULPTX_NFLITS(x) ((x) << S_ULPTX_NFLITS) + +struct ulp_mem_io { + WR_HDR; + __be32 cmd_lock_addr; + __be32 len; +}; + +/* ulp_mem_io.cmd_lock_addr fields */ +#define S_ULP_MEMIO_ADDR 0 +#define M_ULP_MEMIO_ADDR 0x7FFFFFF +#define V_ULP_MEMIO_ADDR(x) ((x) << S_ULP_MEMIO_ADDR) + +#define S_ULP_MEMIO_LOCK 27 +#define V_ULP_MEMIO_LOCK(x) ((x) << S_ULP_MEMIO_LOCK) +#define F_ULP_MEMIO_LOCK V_ULP_MEMIO_LOCK(1U) + +/* ulp_mem_io.len fields */ +#define S_ULP_MEMIO_DATA_LEN 28 +#define M_ULP_MEMIO_DATA_LEN 0xF +#define V_ULP_MEMIO_DATA_LEN(x) ((x) << S_ULP_MEMIO_DATA_LEN) + #endif /* T3_CPL_H */ diff --git a/drivers/net/cxgb3/t3cdev.h b/drivers/net/cxgb3/t3cdev.h index a18c8a1..0a21cfb 100644 --- a/drivers/net/cxgb3/t3cdev.h +++ b/drivers/net/cxgb3/t3cdev.h @@ -45,7 +45,8 @@ struct cxgb3_client; enum t3ctype { T3A = 0, - T3B + T3B, + T3C, }; struct t3cdev { @@ -63,6 +64,7 @@ struct t3cdev { void *l3opt; /* optional layer 3 data */ void *l4opt; /* optional layer 4 data */ void *ulp; /* ulp stuff */ + void *ulp_iscsi; /* ulp iscsi */ }; #endif /* _T3CDEV_H_ */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/