Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030363AbVIIThZ (ORCPT ); Fri, 9 Sep 2005 15:37:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030366AbVIITg4 (ORCPT ); Fri, 9 Sep 2005 15:36:56 -0400 Received: from magic.adaptec.com ([216.52.22.17]:44229 "EHLO magic.adaptec.com") by vger.kernel.org with ESMTP id S1030360AbVIITgV (ORCPT ); Fri, 9 Sep 2005 15:36:21 -0400 Message-ID: <4321E42F.40209@adaptec.com> Date: Fri, 09 Sep 2005 15:36:15 -0400 From: Luben Tuikov User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linux Kernel Mailing List , SCSI Mailing List Subject: [PATCH 2.6.13 16/20] aic94xx: aic94xx_seq.c Sequencer interface Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Sep 2005 19:36:20.0423 (UTC) FILETIME=[C1079D70:01C5B575] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 46125 Lines: 1329 Signed-off-by: Luben Tuikov diff -X linux-2.6.13/Documentation/dontdiff -Naur linux-2.6.13-orig/drivers/scsi/aic94xx/aic94xx_seq.c linux-2.6.13/drivers/scsi/aic94xx/aic94xx_seq.c --- linux-2.6.13-orig/drivers/scsi/aic94xx/aic94xx_seq.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.13/drivers/scsi/aic94xx/aic94xx_seq.c 2005-09-09 11:21:23.000000000 -0400 @@ -0,0 +1,1317 @@ +/* + * Aic94xx SAS/SATA driver sequencer interface. + * + * Copyright (C) 2005 Adaptec, Inc. All rights reserved. + * Copyright (C) 2005 Luben Tuikov + * + * Parts of this code adapted from David Chaw's adp94xx_seq.c. + * + * This file is licensed under GPLv2. + * + * This file is part of the aic94xx driver. + * + * The aic94xx driver is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of the + * License. + * + * The aic94xx driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the aic94xx driver; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * $Id: //depot/aic94xx/aic94xx_seq.c#40 $ + */ + +#include +#include +#include "aic94xx_reg.h" +#include "aic94xx_hwi.h" + +#include "aic94xx_seq.h" +#include "aic94xx_dump.h" + +#include "aic94xx_seq_microcode.c" + +/* It takes no more than 0.05 us for an instruction + * to complete. So waiting for 1 us should be more than + * plenty. + */ +#define PAUSE_DELAY 1 +#define PAUSE_TRIES 1000 + +static u16 first_scb_site_no = 0xFFFF; +static u16 last_scb_site_no; + +/* ---------- Pause/Unpause CSEQ/LSEQ ---------- */ + +/** + * asd_pause_cseq - pause the central sequencer + * @asd_ha: pointer to host adapter structure + * + * Return 0 on success, negative on failure. + */ +int asd_pause_cseq(struct asd_ha_struct *asd_ha) +{ + int count = PAUSE_TRIES; + u32 arp2ctl; + + arp2ctl = asd_read_reg_dword(asd_ha, CARP2CTL); + if (arp2ctl & PAUSED) + return 0; + + asd_write_reg_dword(asd_ha, CARP2CTL, arp2ctl | EPAUSE); + do { + arp2ctl = asd_read_reg_dword(asd_ha, CARP2CTL); + if (arp2ctl & PAUSED) + return 0; + udelay(PAUSE_DELAY); + } while (--count > 0); + + ASD_DPRINTK("couldn't pause CSEQ\n"); + return -1; +} + +/** + * asd_unpause_cseq - unpause the central sequencer. + * @asd_ha: pointer to host adapter structure. + * + * Return 0 on success, negative on error. + */ +int asd_unpause_cseq(struct asd_ha_struct *asd_ha) +{ + u32 arp2ctl; + int count = PAUSE_TRIES; + + arp2ctl = asd_read_reg_dword(asd_ha, CARP2CTL); + if (!(arp2ctl & PAUSED)) + return 0; + + asd_write_reg_dword(asd_ha, CARP2CTL, arp2ctl & ~EPAUSE); + do { + arp2ctl = asd_read_reg_dword(asd_ha, CARP2CTL); + if (!(arp2ctl & PAUSED)) + return 0; + udelay(PAUSE_DELAY); + } while (--count > 0); + + ASD_DPRINTK("couldn't unpause the CSEQ\n"); + return -1; +} + +/** + * asd_seq_pause_lseq - pause a link sequencer + * @asd_ha: pointer to a host adapter structure + * @lseq: link sequencer of interest + * + * Return 0 on success, negative on error. + */ +static inline int asd_seq_pause_lseq(struct asd_ha_struct *asd_ha, int lseq) +{ + u32 arp2ctl; + int count = PAUSE_TRIES; + + arp2ctl = asd_read_reg_dword(asd_ha, LmARP2CTL(lseq)); + if (arp2ctl & PAUSED) + return 0; + + asd_write_reg_dword(asd_ha, LmARP2CTL(lseq), arp2ctl | EPAUSE); + do { + arp2ctl = asd_read_reg_dword(asd_ha, LmARP2CTL(lseq)); + if (arp2ctl & PAUSED) + return 0; + udelay(PAUSE_DELAY); + } while (--count > 0); + + ASD_DPRINTK("couldn't pause LSEQ %d\n", lseq); + return -1; +} + +/** + * asd_pause_lseq - pause the link sequencer(s) + * @asd_ha: pointer to host adapter structure + * @lseq_mask: mask of link sequencers of interest + * + * Return 0 on success, negative on failure. + */ +int asd_pause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask) +{ + int lseq; + int err = 0; + + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + err = asd_seq_pause_lseq(asd_ha, lseq); + if (err) + return err; + } + + return err; +} + +/** + * asd_seq_unpause_lseq - unpause a link sequencer + * @asd_ha: pointer to host adapter structure + * @lseq: link sequencer of interest + * + * Return 0 on success, negative on error. + */ +static inline int asd_seq_unpause_lseq(struct asd_ha_struct *asd_ha, int lseq) +{ + u32 arp2ctl; + int count = PAUSE_TRIES; + + arp2ctl = asd_read_reg_dword(asd_ha, LmARP2CTL(lseq)); + if (!(arp2ctl & PAUSED)) + return 0; + + asd_write_reg_dword(asd_ha, LmARP2CTL(lseq), arp2ctl & ~EPAUSE); + do { + arp2ctl = asd_read_reg_dword(asd_ha, LmARP2CTL(lseq)); + if (!(arp2ctl & PAUSED)) + return 0; + udelay(PAUSE_DELAY); + } while (--count > 0); + + ASD_DPRINTK("couldn't unpause LSEQ %d\n", lseq); + return 0; +} + + +/** + * asd_unpause_lseq - unpause the link sequencer(s) + * @asd_ha: pointer to host adapter structure + * @lseq_mask: mask of link sequencers of interest + * + * Return 0 on success, negative on failure. + */ +int asd_unpause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask) +{ + int lseq; + int err = 0; + + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + err = asd_seq_unpause_lseq(asd_ha, lseq); + if (err) + return err; + } + + return err; +} + +/* ---------- Downloading CSEQ/LSEQ microcode ---------- */ + +static int asd_verify_cseq(struct asd_ha_struct *asd_ha, const u8 *_prog, + u32 size) +{ + u32 addr = CSEQ_RAM_REG_BASE_ADR; + const u32 *prog = (u32 *) _prog; + u32 i; + + for (i = 0; i < size; i += 4, prog++, addr += 4) { + u32 val = asd_read_reg_dword(asd_ha, addr); + + if (*prog != val) { + asd_printk("%s: cseq verify failed at %u " + "read:0x%x, wanted:0x%x\n", + pci_name(asd_ha->pcidev), + i, val, *prog); + return -1; + } + } + ASD_DPRINTK("verified %d bytes, passed\n", size); + return 0; +} + +/** + * asd_verify_lseq - verify the microcode of a link sequencer + * @asd_ha: pointer to host adapter structure + * @_prog: pointer to the microcode + * @size: size of the microcode in bytes + * @lseq: link sequencer of interest + * + * The link sequencer code is accessed in 4 KB pages, which are selected + * by setting LmRAMPAGE (bits 8 and 9) of the LmBISTCTL1 register. + * The 10 KB LSEQm instruction code is mapped, page at a time, at + * LmSEQRAM address. + */ +static int asd_verify_lseq(struct asd_ha_struct *asd_ha, const u8 *_prog, + u32 size, int lseq) +{ +#define LSEQ_CODEPAGE_SIZE 4096 + int pages = (size + LSEQ_CODEPAGE_SIZE - 1) / LSEQ_CODEPAGE_SIZE; + u32 page; + const u32 *prog = (u32 *) _prog; + + for (page = 0; page < pages; page++) { + u32 i; + + asd_write_reg_dword(asd_ha, LmBISTCTL1(lseq), + page << LmRAMPAGE_LSHIFT); + for (i = 0; size > 0 && i < LSEQ_CODEPAGE_SIZE; + i += 4, prog++, size-=4) { + + u32 val = asd_read_reg_dword(asd_ha, LmSEQRAM(lseq)+i); + + if (*prog != val) { + asd_printk("%s: LSEQ%d verify failed " + "page:%d, offs:%d\n", + pci_name(asd_ha->pcidev), + lseq, page, i); + return -1; + } + } + } + ASD_DPRINTK("LSEQ%d verified %d bytes, passed\n", lseq, + (int)((u8 *)prog-_prog)); + return 0; +} + +/** + * asd_verify_seq -- verify CSEQ/LSEQ microcode + * @asd_ha: pointer to host adapter structure + * @prog: pointer to microcode + * @size: size of the microcode + * @lseq_mask: if 0, verify CSEQ microcode, else mask of LSEQs of interest + * + * Return 0 if microcode is correct, negative on mismatch. + */ +static int asd_verify_seq(struct asd_ha_struct *asd_ha, const u8 *prog, + u32 size, u8 lseq_mask) +{ + if (lseq_mask == 0) + return asd_verify_cseq(asd_ha, prog, size); + else { + int lseq, err; + + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + err = asd_verify_lseq(asd_ha, prog, size, lseq); + if (err) + return err; + } + } + + return 0; +} +#define ASD_DMA_MODE_DOWNLOAD +#ifdef ASD_DMA_MODE_DOWNLOAD +/* This is the size of the CSEQ Mapped instruction page */ +#define MAX_DMA_OVLY_COUNT ((1U << 14)-1) +static int asd_download_seq(struct asd_ha_struct *asd_ha, + const u8 * const prog, u32 size, u8 lseq_mask) +{ + u32 comstaten; + u32 reg; + int page; + const int pages = (size + MAX_DMA_OVLY_COUNT - 1) / MAX_DMA_OVLY_COUNT; + struct asd_dma_tok *token; + int err = 0; + + if (size % 4) { + asd_printk("sequencer program not multiple of 4\n"); + return -1; + } + + asd_pause_cseq(asd_ha); + asd_pause_lseq(asd_ha, 0xFF); + + /* save, disable and clear interrupts */ + comstaten = asd_read_reg_dword(asd_ha, COMSTATEN); + asd_write_reg_dword(asd_ha, COMSTATEN, 0); + asd_write_reg_dword(asd_ha, COMSTAT, COMSTAT_MASK); + + asd_write_reg_dword(asd_ha, CHIMINTEN, RST_CHIMINTEN); + asd_write_reg_dword(asd_ha, CHIMINT, CHIMINT_MASK); + + token = asd_alloc_coherent(asd_ha, MAX_DMA_OVLY_COUNT, GFP_KERNEL); + if (!token) { + asd_printk("out of memory for dma SEQ download\n"); + err = -ENOMEM; + goto out; + } + ASD_DPRINTK("dma-ing %d bytes\n", size); + + for (page = 0; page < pages; page++) { + int i; + u32 left = min(size-page*MAX_DMA_OVLY_COUNT, + (u32)MAX_DMA_OVLY_COUNT); + + memcpy(token->vaddr, prog + page*MAX_DMA_OVLY_COUNT, left); + asd_write_reg_addr(asd_ha, OVLYDMAADR, token->dma_handle); + asd_write_reg_dword(asd_ha, OVLYDMACNT, left); + reg = !page ? RESETOVLYDMA : 0; + reg |= (STARTOVLYDMA | OVLYHALTERR); + reg |= (lseq_mask ? (((u32)lseq_mask) << 8) : OVLYCSEQ); + /* Start DMA. */ + asd_write_reg_dword(asd_ha, OVLYDMACTL, reg); + + for (i = PAUSE_TRIES*100; i > 0; i--) { + u32 dmadone = asd_read_reg_dword(asd_ha, OVLYDMACTL); + if (!(dmadone & OVLYDMAACT)) + break; + udelay(PAUSE_DELAY); + } + } + + reg = asd_read_reg_dword(asd_ha, COMSTAT); + if (!(reg & OVLYDMADONE) || (reg & OVLYERR) + || (asd_read_reg_dword(asd_ha, CHIMINT) & DEVEXCEPT_MASK)){ + asd_printk("%s: error DMA-ing sequencer code\n", + pci_name(asd_ha->pcidev)); + err = -ENODEV; + } + + asd_free_coherent(asd_ha, token); + out: + asd_write_reg_dword(asd_ha, COMSTATEN, comstaten); + + return err ? : asd_verify_seq(asd_ha, prog, size, lseq_mask); +} +#else /* ASD_DMA_MODE_DOWNLOAD */ +static int asd_download_seq(struct asd_ha_struct *asd_ha, const u8 *_prog, + u32 size, u8 lseq_mask) +{ + int i; + u32 reg = 0; + const u32 *prog = (u32 *) _prog; + + if (size % 4) { + asd_printk("sequencer program not multiple of 4\n"); + return -1; + } + + asd_pause_cseq(asd_ha); + asd_pause_lseq(asd_ha, 0xFF); + + reg |= (lseq_mask ? (((u32)lseq_mask) << 8) : OVLYCSEQ); + reg |= PIOCMODE; + + asd_write_reg_dword(asd_ha, OVLYDMACNT, size); + asd_write_reg_dword(asd_ha, OVLYDMACTL, reg); + + ASD_DPRINTK("downloading %s sequencer%s in PIO mode...\n", + lseq_mask ? "LSEQ" : "CSEQ", lseq_mask ? "s" : ""); + + for (i = 0; i < size; i += 4, prog++) + asd_write_reg_dword(asd_ha, SPIODATA, *prog); + + reg = (reg & ~PIOCMODE) | OVLYHALTERR; + asd_write_reg_dword(asd_ha, OVLYDMACTL, reg); + + return asd_verify_seq(asd_ha, _prog, size, lseq_mask); +} +#endif /* ASD_DMA_MODE_DOWNLOAD */ + +/** + * asd_seq_download_seqs - download the sequencer microcode + * @asd_ha: pointer to host adapter structure + * + * Download the central and link sequencer microcode. + */ +static int asd_seq_download_seqs(struct asd_ha_struct *asd_ha) +{ + int err; + + if (!asd_ha->hw_prof.enabled_phys) { + asd_printk("%s: no enabled phys!\n", pci_name(asd_ha->pcidev)); + return -ENODEV; + } + + /* Download the CSEQ */ + ASD_DPRINTK("downloading CSEQ...\n"); + err = asd_download_seq(asd_ha, Cseq, sizeof(Cseq), 0); + if (err) { + asd_printk("CSEQ download failed:%d\n", err); + return err; + } + + /* Download the Link Sequencers code. All of the Link Sequencers + * microcode can be downloaded at the same time. + */ + ASD_DPRINTK("downloading LSEQs...\n"); + err = asd_download_seq(asd_ha, Lseq, sizeof(Lseq), + asd_ha->hw_prof.enabled_phys); + if (err) { + /* Try it one at a time */ + u8 lseq; + u8 lseq_mask = asd_ha->hw_prof.enabled_phys; + + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + err = asd_download_seq(asd_ha, Lseq, sizeof(Lseq), + 1<> 8; + asd_write_reg_byte(asd_ha, CSEQ_FREE_SCB_MASK, (u8)cmdctx); + } + asd_write_reg_word(asd_ha, CSEQ_BUILTIN_FREE_SCB_HEAD, + first_scb_site_no); + asd_write_reg_word(asd_ha, CSEQ_BUILTIN_FREE_SCB_TAIL, + last_scb_site_no); + asd_write_reg_word(asd_ha, CSEQ_EXTENDED_FREE_SCB_HEAD, 0xFFFF); + asd_write_reg_word(asd_ha, CSEQ_EXTENDED_FREE_SCB_TAIL, 0xFFFF); + + /* CSEQ Mode independent, page 7 setup. */ + asd_write_reg_dword(asd_ha, CSEQ_EMPTY_REQ_QUEUE, 0); + asd_write_reg_dword(asd_ha, CSEQ_EMPTY_REQ_QUEUE+4, 0); + asd_write_reg_dword(asd_ha, CSEQ_EMPTY_REQ_COUNT, 0); + asd_write_reg_dword(asd_ha, CSEQ_EMPTY_REQ_COUNT+4, 0); + asd_write_reg_word(asd_ha, CSEQ_Q_EMPTY_HEAD, 0xFFFF); + asd_write_reg_word(asd_ha, CSEQ_Q_EMPTY_TAIL, 0xFFFF); + asd_write_reg_word(asd_ha, CSEQ_NEED_EMPTY_SCB, 0); + asd_write_reg_byte(asd_ha, CSEQ_EMPTY_REQ_HEAD, 0); + asd_write_reg_byte(asd_ha, CSEQ_EMPTY_REQ_TAIL, 0); + asd_write_reg_byte(asd_ha, CSEQ_EMPTY_SCB_OFFSET, 0); + asd_write_reg_word(asd_ha, CSEQ_PRIMITIVE_DATA, 0); + asd_write_reg_dword(asd_ha, CSEQ_TIMEOUT_CONST, 0); +} + +/** + * asd_init_cseq_mdp - initialize CSEQ Mode dependent pages + * @asd_ha: pointer to host adapter structure + */ +static void asd_init_cseq_mdp(struct asd_ha_struct *asd_ha) +{ + int i; + int moffs; + + moffs = CSEQ_PAGE_SIZE * 2; + + /* CSEQ Mode dependent, modes 0-7, page 0 setup. */ + for (i = 0; i < 8; i++) { + asd_write_reg_word(asd_ha, i*moffs+CSEQ_LRM_SAVE_SINDEX, 0); + asd_write_reg_word(asd_ha, i*moffs+CSEQ_LRM_SAVE_SCBPTR, 0); + asd_write_reg_word(asd_ha, i*moffs+CSEQ_Q_LINK_HEAD, 0xFFFF); + asd_write_reg_word(asd_ha, i*moffs+CSEQ_Q_LINK_TAIL, 0xFFFF); + asd_write_reg_byte(asd_ha, i*moffs+CSEQ_LRM_SAVE_SCRPAGE, 0); + } + + /* CSEQ Mode dependent, mode 0-7, page 1 and 2 shall be ignored. */ + + /* CSEQ Mode dependent, mode 8, page 0 setup. */ + asd_write_reg_word(asd_ha, CSEQ_RET_ADDR, 0xFFFF); + asd_write_reg_word(asd_ha, CSEQ_RET_SCBPTR, 0); + asd_write_reg_word(asd_ha, CSEQ_SAVE_SCBPTR, 0); + asd_write_reg_word(asd_ha, CSEQ_EMPTY_TRANS_CTX, 0); + asd_write_reg_word(asd_ha, CSEQ_RESP_LEN, 0); + asd_write_reg_word(asd_ha, CSEQ_TMF_SCBPTR, 0); + asd_write_reg_word(asd_ha, CSEQ_GLOBAL_PREV_SCB, 0); + asd_write_reg_word(asd_ha, CSEQ_GLOBAL_HEAD, 0); + asd_write_reg_word(asd_ha, CSEQ_CLEAR_LU_HEAD, 0); + asd_write_reg_byte(asd_ha, CSEQ_TMF_OPCODE, 0); + asd_write_reg_byte(asd_ha, CSEQ_SCRATCH_FLAGS, 0); + asd_write_reg_word(asd_ha, CSEQ_HSB_SITE, 0); + asd_write_reg_word(asd_ha, CSEQ_FIRST_INV_SCB_SITE, + (u16)last_scb_site_no+1); + asd_write_reg_word(asd_ha, CSEQ_FIRST_INV_DDB_SITE, + (u16)asd_ha->hw_prof.max_ddbs); + + /* CSEQ Mode dependent, mode 8, page 1 setup. */ + asd_write_reg_dword(asd_ha, CSEQ_LUN_TO_CLEAR, 0); + asd_write_reg_dword(asd_ha, CSEQ_LUN_TO_CLEAR + 4, 0); + asd_write_reg_dword(asd_ha, CSEQ_LUN_TO_CHECK, 0); + asd_write_reg_dword(asd_ha, CSEQ_LUN_TO_CHECK + 4, 0); + + /* CSEQ Mode dependent, mode 8, page 2 setup. */ + /* Tell the sequencer the bus address of the first SCB. */ + asd_write_reg_addr(asd_ha, CSEQ_HQ_NEW_POINTER, + asd_ha->seq.next_scb.dma_handle); + ASD_DPRINTK("First SCB dma_handle: 0x%08llx\n", + (u64)asd_ha->seq.next_scb.dma_handle); + + /* Tell the sequencer the first Done List entry address. */ + asd_write_reg_addr(asd_ha, CSEQ_HQ_DONE_BASE, + asd_ha->seq.actual_dl->dma_handle); + + /* Initialize the Q_DONE_POINTER with the least significant + * 4 bytes of the first Done List address. */ + asd_write_reg_dword(asd_ha, CSEQ_HQ_DONE_POINTER, + ASD_BUSADDR_LO(asd_ha->seq.actual_dl->dma_handle)); + + asd_write_reg_byte(asd_ha, CSEQ_HQ_DONE_PASS, ASD_DEF_DL_TOGGLE); + + /* CSEQ Mode dependent, mode 8, page 3 shall be ignored. */ +} + +/** + * asd_init_cseq_scratch -- setup and init CSEQ + * @asd_ha: pointer to host adapter structure + * + * Setup and initialize Central sequencers. Initialiaze the mode + * independent and dependent scratch page to the default settings. + */ +static void asd_init_cseq_scratch(struct asd_ha_struct *asd_ha) +{ + asd_init_cseq_mip(asd_ha); + asd_init_cseq_mdp(asd_ha); +} + +/** + * asd_init_lseq_mip -- initialize LSEQ Mode independent pages 0-3 + * @asd_ha: pointer to host adapter structure + */ +static void asd_init_lseq_mip(struct asd_ha_struct *asd_ha, u8 lseq) +{ + int i; + + /* LSEQ Mode independent page 0 setup. */ + asd_write_reg_word(asd_ha, LmSEQ_Q_TGTXFR_HEAD(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_Q_TGTXFR_TAIL(lseq), 0xFFFF); + asd_write_reg_byte(asd_ha, LmSEQ_LINK_NUMBER(lseq), lseq); + asd_write_reg_byte(asd_ha, LmSEQ_SCRATCH_FLAGS(lseq), + ASD_NOTIFY_ENABLE_SPINUP); + asd_write_reg_dword(asd_ha, LmSEQ_CONNECTION_STATE(lseq),0x08000000); + asd_write_reg_word(asd_ha, LmSEQ_CONCTL(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_CONSTAT(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_CONNECTION_MODES(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_REG1_ISR(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_REG2_ISR(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_REG3_ISR(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_REG0_ISR(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_REG0_ISR(lseq)+4, 0); + + /* LSEQ Mode independent page 1 setup. */ + asd_write_reg_word(asd_ha, LmSEQ_EST_NEXUS_SCBPTR0(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EST_NEXUS_SCBPTR1(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EST_NEXUS_SCBPTR2(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EST_NEXUS_SCBPTR3(lseq), 0xFFFF); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_OPCODE0(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_OPCODE1(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_OPCODE2(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_OPCODE3(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_HEAD(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_SCB_TAIL(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EST_NEXUS_BUF_AVAIL(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_TIMEOUT_CONST(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_ISR_SAVE_SINDEX(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_ISR_SAVE_DINDEX(lseq), 0); + + /* LSEQ Mode Independent page 2 setup. */ + asd_write_reg_word(asd_ha, LmSEQ_EMPTY_SCB_PTR0(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EMPTY_SCB_PTR1(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EMPTY_SCB_PTR2(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_EMPTY_SCB_PTR3(lseq), 0xFFFF); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_OPCD0(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_OPCD1(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_OPCD2(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_OPCD3(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_HEAD(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_SCB_TAIL(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_EMPTY_BUFS_AVAIL(lseq), 0); + for (i = 0; i < 12; i += 4) + asd_write_reg_dword(asd_ha, LmSEQ_ATA_SCR_REGS(lseq) + i, 0); + + /* LSEQ Mode Independent page 3 setup. */ + + /* Device present timer timeout */ + asd_write_reg_dword(asd_ha, LmSEQ_DEV_PRES_TMR_TOUT_CONST(lseq), + ASD_DEV_PRESENT_TIMEOUT); + + /* SATA interlock timer disabled */ + asd_write_reg_dword(asd_ha, LmSEQ_SATA_INTERLOCK_TIMEOUT(lseq), + ASD_SATA_INTERLOCK_TIMEOUT); + + /* STP shutdown timer timeout constant, IGNORED by the sequencer, + * always 0. */ + asd_write_reg_dword(asd_ha, LmSEQ_STP_SHUTDOWN_TIMEOUT(lseq), + ASD_STP_SHUTDOWN_TIMEOUT); + + asd_write_reg_dword(asd_ha, LmSEQ_SRST_ASSERT_TIMEOUT(lseq), + ASD_SRST_ASSERT_TIMEOUT); + + asd_write_reg_dword(asd_ha, LmSEQ_RCV_FIS_TIMEOUT(lseq), + ASD_RCV_FIS_TIMEOUT); + + asd_write_reg_dword(asd_ha, LmSEQ_ONE_MILLISEC_TIMEOUT(lseq), + ASD_ONE_MILLISEC_TIMEOUT); + + /* COM_INIT timer */ + asd_write_reg_dword(asd_ha, LmSEQ_TEN_MS_COMINIT_TIMEOUT(lseq), + ASD_TEN_MILLISEC_TIMEOUT); + + asd_write_reg_dword(asd_ha, LmSEQ_SMP_RCV_TIMEOUT(lseq), + ASD_SMP_RCV_TIMEOUT); +} + +/** + * asd_init_lseq_mdp -- initialize LSEQ mode dependent pages. + * @asd_ha: pointer to host adapter structure + */ +static void asd_init_lseq_mdp(struct asd_ha_struct *asd_ha, int lseq) +{ + int i; + u32 moffs; + static const u16 ret_addr[] = { + 0xFFFF, /* mode 0 */ + 0xFFFF, /* mode 1 */ + MODE2_TASK, /* mode 2 */ + 0, + 0xFFFF, /* mode 4/5 */ + 0xFFFF, /* mode 4/5 */ + }; + + /* + * Mode 0,1,2 and 4/5 have common field on page 0 for the first + * 14 bytes. + */ + for (i = 0; i < 3; i++) { + moffs = i * LSEQ_MODE_SCRATCH_SIZE; + asd_write_reg_word(asd_ha, LmSEQ_RET_ADDR(lseq)+moffs, + ret_addr[i]); + asd_write_reg_word(asd_ha, LmSEQ_REG0_MODE(lseq)+moffs, 0); + asd_write_reg_word(asd_ha, LmSEQ_MODE_FLAGS(lseq)+moffs, 0); + asd_write_reg_word(asd_ha, LmSEQ_RET_ADDR2(lseq)+moffs,0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_RET_ADDR1(lseq)+moffs,0xFFFF); + asd_write_reg_byte(asd_ha, LmSEQ_OPCODE_TO_CSEQ(lseq)+moffs,0); + asd_write_reg_word(asd_ha, LmSEQ_DATA_TO_CSEQ(lseq)+moffs,0); + } + /* + * Mode 5 page 0 overlaps the same scratch page with Mode 0 page 3. + */ + asd_write_reg_word(asd_ha, + LmSEQ_RET_ADDR(lseq)+LSEQ_MODE5_PAGE0_OFFSET, + ret_addr[5]); + asd_write_reg_word(asd_ha, + LmSEQ_REG0_MODE(lseq)+LSEQ_MODE5_PAGE0_OFFSET,0); + asd_write_reg_word(asd_ha, + LmSEQ_MODE_FLAGS(lseq)+LSEQ_MODE5_PAGE0_OFFSET, 0); + asd_write_reg_word(asd_ha, + LmSEQ_RET_ADDR2(lseq)+LSEQ_MODE5_PAGE0_OFFSET,0xFFFF); + asd_write_reg_word(asd_ha, + LmSEQ_RET_ADDR1(lseq)+LSEQ_MODE5_PAGE0_OFFSET,0xFFFF); + asd_write_reg_byte(asd_ha, + LmSEQ_OPCODE_TO_CSEQ(lseq)+LSEQ_MODE5_PAGE0_OFFSET,0); + asd_write_reg_word(asd_ha, + LmSEQ_DATA_TO_CSEQ(lseq)+LSEQ_MODE5_PAGE0_OFFSET, 0); + + /* LSEQ Mode dependent 0, page 0 setup. */ + asd_write_reg_word(asd_ha, LmSEQ_FIRST_INV_DDB_SITE(lseq), + (u16)asd_ha->hw_prof.max_ddbs); + asd_write_reg_word(asd_ha, LmSEQ_EMPTY_TRANS_CTX(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_RESP_LEN(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_FIRST_INV_SCB_SITE(lseq), + (u16)last_scb_site_no+1); + asd_write_reg_dword(asd_ha, LmSEQ_INTEN_SAVE(lseq), + (u32) LmM0INTEN_MASK); + asd_write_reg_byte(asd_ha, LmSEQ_LINK_RST_FRM_LEN(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_LINK_RST_PROTOCOL(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_RESP_STATUS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_LAST_LOADED_SGE(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_SAVE_SCBPTR(lseq), 0); + + /* LSEQ mode dependent, mode 1, page 0 setup. */ + asd_write_reg_word(asd_ha, LmSEQ_Q_XMIT_HEAD(lseq), 0xFFFF); + asd_write_reg_word(asd_ha, LmSEQ_M1_EMPTY_TRANS_CTX(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_INI_CONN_TAG(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_FAILED_OPEN_STATUS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_XMIT_REQUEST_TYPE(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_M1_RESP_STATUS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_M1_LAST_LOADED_SGE(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_M1_SAVE_SCBPTR(lseq), 0); + + /* LSEQ Mode dependent mode 2, page 0 setup */ + asd_write_reg_word(asd_ha, LmSEQ_PORT_COUNTER(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_PM_TABLE_PTR(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_SATA_INTERLOCK_TMR_SAVE(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_IP_BITL(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_COPY_SMP_CONN_TAG(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_P0M2_OFFS1AH(lseq), 0); + + /* LSEQ Mode dependent, mode 4/5, page 0 setup. */ + asd_write_reg_byte(asd_ha, LmSEQ_SAVED_OOB_STATUS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_SAVED_OOB_MODE(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_Q_LINK_HEAD(lseq), 0xFFFF); + asd_write_reg_byte(asd_ha, LmSEQ_LINK_RST_ERR(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_SAVED_OOB_SIGNALS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_SAS_RESET_MODE(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_LINK_RESET_RETRY_COUNT(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_NUM_LINK_RESET_RETRIES(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_OOB_INT_ENABLES(lseq), 0); + /* + * Set the desired interval between transmissions of the NOTIFY + * (ENABLE SPINUP) primitive. Must be initilized to val - 1. + */ + asd_write_reg_word(asd_ha, LmSEQ_NOTIFY_TIMER_TIMEOUT(lseq), + ASD_NOTIFY_TIMEOUT - 1); + /* No delay for the first NOTIFY to be sent to the attached target. */ + asd_write_reg_word(asd_ha, LmSEQ_NOTIFY_TIMER_DOWN_COUNT(lseq), + ASD_NOTIFY_DOWN_COUNT); + + /* LSEQ Mode dependent, mode 0 and 1, page 1 setup. */ + for (i = 0; i < 2; i++) { + int j; + /* Start from Page 1 of Mode 0 and 1. */ + moffs = LSEQ_PAGE_SIZE + i*LSEQ_MODE_SCRATCH_SIZE; + /* All the fields of page 1 can be intialized to 0. */ + for (j = 0; j < LSEQ_PAGE_SIZE; j += 4) + asd_write_reg_dword(asd_ha, LmSCRATCH(lseq)+moffs+j,0); + } + + /* LSEQ Mode dependent, mode 2, page 1 setup. */ + asd_write_reg_dword(asd_ha, LmSEQ_INVALID_DWORD_COUNT(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_DISPARITY_ERROR_COUNT(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_LOSS_OF_SYNC_COUNT(lseq), 0); + + /* LSEQ Mode dependent, mode 4/5, page 1. */ + for (i = 0; i < LSEQ_PAGE_SIZE; i+=4) + asd_write_reg_dword(asd_ha, LmSEQ_FRAME_TYPE_MASK(lseq)+i, 0); + asd_write_reg_byte(asd_ha, LmSEQ_FRAME_TYPE_MASK(lseq), 0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_DEST_ADDR_MASK(lseq), 0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_DEST_ADDR_MASK(lseq)+1,0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_DEST_ADDR_MASK(lseq)+2,0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_SRC_ADDR_MASK(lseq), 0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_SRC_ADDR_MASK(lseq)+1, 0xFF); + asd_write_reg_byte(asd_ha, LmSEQ_HASHED_SRC_ADDR_MASK(lseq)+2, 0xFF); + asd_write_reg_dword(asd_ha, LmSEQ_DATA_OFFSET(lseq), 0xFFFFFFFF); + + /* LSEQ Mode dependent, mode 0, page 2 setup. */ + asd_write_reg_dword(asd_ha, LmSEQ_SMP_RCV_TIMER_TERM_TS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_DEVICE_BITS(lseq), 0); + asd_write_reg_word(asd_ha, LmSEQ_SDB_DDB(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_SDB_NUM_TAGS(lseq), 0); + asd_write_reg_byte(asd_ha, LmSEQ_SDB_CURR_TAG(lseq), 0); + + /* LSEQ Mode Dependent 1, page 2 setup. */ + asd_write_reg_dword(asd_ha, LmSEQ_TX_ID_ADDR_FRAME(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_TX_ID_ADDR_FRAME(lseq)+4, 0); + asd_write_reg_dword(asd_ha, LmSEQ_OPEN_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_SRST_AS_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_LAST_LOADED_SG_EL(lseq), 0); + + /* LSEQ Mode Dependent 2, page 2 setup. */ + /* The LmSEQ_STP_SHUTDOWN_TIMER_TERM_TS is IGNORED by the sequencer, + * i.e. always 0. */ + asd_write_reg_dword(asd_ha, LmSEQ_STP_SHUTDOWN_TIMER_TERM_TS(lseq),0); + asd_write_reg_dword(asd_ha, LmSEQ_CLOSE_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_BREAK_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_DWS_RESET_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha,LmSEQ_SATA_INTERLOCK_TIMER_TERM_TS(lseq),0); + asd_write_reg_dword(asd_ha, LmSEQ_MCTL_TIMER_TERM_TS(lseq), 0); + + /* LSEQ Mode Dependent 4/5, page 2 setup. */ + asd_write_reg_dword(asd_ha, LmSEQ_COMINIT_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_RCV_ID_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_RCV_FIS_TIMER_TERM_TS(lseq), 0); + asd_write_reg_dword(asd_ha, LmSEQ_DEV_PRES_TIMER_TERM_TS(lseq), 0); +} + +/** + * asd_init_lseq_scratch -- setup and init link sequencers + * @asd_ha: pointer to host adapter struct + */ +static void asd_init_lseq_scratch(struct asd_ha_struct *asd_ha) +{ + u8 lseq; + u8 lseq_mask; + + lseq_mask = asd_ha->hw_prof.enabled_phys; + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + asd_init_lseq_mip(asd_ha, lseq); + asd_init_lseq_mdp(asd_ha, lseq); + } +} + +/** + * asd_init_scb_sites -- initialize sequencer SCB sites (memory). + * @asd_ha: pointer to host adapter structure + * + * This should be done before initializing common CSEQ and LSEQ + * scratch since those areas depend on some computed values here, + * last_scb_site_no, etc. + */ +static void asd_init_scb_sites(struct asd_ha_struct *asd_ha) +{ + u16 site_no; + u16 max_scbs = 0; + + for (site_no = asd_ha->hw_prof.max_scbs-1; + site_no != (u16) -1; + site_no--) { + u16 i; + + /* Initialize all fields in the SCB site to 0. */ + for (i = 0; i < ASD_SCB_SIZE; i += 4) + asd_scbsite_write_dword(asd_ha, site_no, i, 0); + + /* Workaround needed by SEQ to fix a SATA issue is to exclude + * certain SCB sites from the free list. */ + if (!SCB_SITE_VALID(site_no)) + continue; + + if (last_scb_site_no == 0) + last_scb_site_no = site_no; + + /* For every SCB site, we need to initialize the + * following fields: Q_NEXT, SCB_OPCODE, SCB_FLAGS, + * and SG Element Flag. */ + + /* Q_NEXT field of the last SCB is invalidated. */ + asd_scbsite_write_word(asd_ha, site_no, 0, first_scb_site_no); + + /* Initialize SCB Site Opcode field to invalid. */ + asd_scbsite_write_byte(asd_ha, site_no, + offsetof(struct scb_header, opcode), + 0xFF); + + /* Initialize SCB Site Flags field to mean a response + * frame has been received. This means inadvertent + * frames received to be dropped. */ + asd_scbsite_write_byte(asd_ha, site_no, 0x49, 0x01); + + first_scb_site_no = site_no; + max_scbs++; + } + asd_ha->hw_prof.max_scbs = max_scbs; + ASD_DPRINTK("max_scbs:%d\n", asd_ha->hw_prof.max_scbs); + ASD_DPRINTK("first_scb_site_no:0x%x\n", first_scb_site_no); + ASD_DPRINTK("last_scb_site_no:0x%x\n", last_scb_site_no); +} + +/** + * asd_init_cseq_cio - initialize CSEQ CIO registers + * @asd_ha: pointer to host adapter structure + */ +static void asd_init_cseq_cio(struct asd_ha_struct *asd_ha) +{ + int i; + + asd_write_reg_byte(asd_ha, CSEQCOMINTEN, 0); + asd_write_reg_byte(asd_ha, CSEQDLCTL, ASD_DL_SIZE_BITS); + asd_write_reg_byte(asd_ha, CSEQDLOFFS, 0); + asd_write_reg_byte(asd_ha, CSEQDLOFFS+1, 0); + asd_ha->seq.scbpro = 0; + asd_write_reg_dword(asd_ha, SCBPRO, 0); + asd_write_reg_dword(asd_ha, CSEQCON, 0); + + /* Intialize CSEQ Mode 11 Interrupt Vectors. + * The addresses are 16 bit wide and in dword units. + * The values of their macros are in byte units. + * Thus we have to divide by 4. */ + asd_write_reg_word(asd_ha, CM11INTVEC0, CSEQ_INT_VEC0); + asd_write_reg_word(asd_ha, CM11INTVEC1, CSEQ_INT_VEC1); + asd_write_reg_word(asd_ha, CM11INTVEC2, CSEQ_INT_VEC2); + + /* Enable ARP2HALTC (ARP2 Halted from Halt Code Write). */ + asd_write_reg_byte(asd_ha, CARP2INTEN, EN_ARP2HALTC); + + /* Initialize CSEQ Scratch Page to 0x04. */ + asd_write_reg_byte(asd_ha, CSCRATCHPAGE, 0x04); + + /* Initialize CSEQ Mode[0-8] Dependent registers. */ + /* Initialize Scratch Page to 0. */ + for (i = 0; i < 9; i++) + asd_write_reg_byte(asd_ha, CMnSCRATCHPAGE(i), 0); + + /* Reset the ARP2 Program Count. */ + asd_write_reg_word(asd_ha, CPRGMCNT, CSEQ_IDLE_LOOP_ENTRY); + + for (i = 0; i < 8; i++) { + /* Intialize Mode n Link m Interrupt Enable. */ + asd_write_reg_dword(asd_ha, CMnINTEN(i), EN_CMnRSPMBXF); + /* Initialize Mode n Request Mailbox. */ + asd_write_reg_dword(asd_ha, CMnREQMBX(i), 0); + } +} + +/** + * asd_init_lseq_cio -- initialize LmSEQ CIO registers + * @asd_ha: pointer to host adapter structure + */ +static void asd_init_lseq_cio(struct asd_ha_struct *asd_ha, int lseq) +{ + u8 *sas_addr; + int i; + + /* Enable ARP2HALTC (ARP2 Halted from Halt Code Write). */ + asd_write_reg_dword(asd_ha, LmARP2INTEN(lseq), EN_ARP2HALTC); + + asd_write_reg_byte(asd_ha, LmSCRATCHPAGE(lseq), 0); + + /* Initialize Mode 0,1, and 2 SCRATCHPAGE to 0. */ + for (i = 0; i < 3; i++) + asd_write_reg_byte(asd_ha, LmMnSCRATCHPAGE(lseq, i), 0); + + /* Initialize Mode 5 SCRATCHPAGE to 0. */ + asd_write_reg_byte(asd_ha, LmMnSCRATCHPAGE(lseq, 5), 0); + + asd_write_reg_dword(asd_ha, LmRSPMBX(lseq), 0); + /* Initialize Mode 0,1,2 and 5 Interrupt Enable and + * Interrupt registers. */ + asd_write_reg_dword(asd_ha, LmMnINTEN(lseq, 0), LmM0INTEN_MASK); + asd_write_reg_dword(asd_ha, LmMnINT(lseq, 0), 0xFFFFFFFF); + /* Mode 1 */ + asd_write_reg_dword(asd_ha, LmMnINTEN(lseq, 1), LmM1INTEN_MASK); + asd_write_reg_dword(asd_ha, LmMnINT(lseq, 1), 0xFFFFFFFF); + /* Mode 2 */ + asd_write_reg_dword(asd_ha, LmMnINTEN(lseq, 2), LmM2INTEN_MASK); + asd_write_reg_dword(asd_ha, LmMnINT(lseq, 2), 0xFFFFFFFF); + /* Mode 5 */ + asd_write_reg_dword(asd_ha, LmMnINTEN(lseq, 5), LmM5INTEN_MASK); + asd_write_reg_dword(asd_ha, LmMnINT(lseq, 5), 0xFFFFFFFF); + + /* Enable HW Timer status. */ + asd_write_reg_byte(asd_ha, LmHWTSTATEN(lseq), LmHWTSTATEN_MASK); + + /* Enable Primitive Status 0 and 1. */ + asd_write_reg_dword(asd_ha, LmPRIMSTAT0EN(lseq), LmPRIMSTAT0EN_MASK); + asd_write_reg_dword(asd_ha, LmPRIMSTAT1EN(lseq), LmPRIMSTAT1EN_MASK); + + /* Enable Frame Error. */ + asd_write_reg_dword(asd_ha, LmFRMERREN(lseq), LmFRMERREN_MASK); + asd_write_reg_byte(asd_ha, LmMnHOLDLVL(lseq, 0), 0x50); + + /* Initialize Mode 0 Transfer Level to 512. */ + asd_write_reg_byte(asd_ha, LmMnXFRLVL(lseq, 0), LmMnXFRLVL_512); + /* Initialize Mode 1 Transfer Level to 256. */ + asd_write_reg_byte(asd_ha, LmMnXFRLVL(lseq, 1), LmMnXFRLVL_256); + + /* Initialize Program Count. */ + asd_write_reg_word(asd_ha, LmPRGMCNT(lseq), LSEQ_IDLE_LOOP_ENTRY); + + /* Enable Blind SG Move. */ + asd_write_reg_dword(asd_ha, LmMODECTL(lseq), LmBLIND48); + asd_write_reg_word(asd_ha, LmM3SATATIMER(lseq), + ASD_SATA_INTERLOCK_TIMEOUT); + + (void) asd_read_reg_dword(asd_ha, LmREQMBX(lseq)); + + /* Clear Primitive Status 0 and 1. */ + asd_write_reg_dword(asd_ha, LmPRMSTAT0(lseq), 0xFFFFFFFF); + asd_write_reg_dword(asd_ha, LmPRMSTAT1(lseq), 0xFFFFFFFF); + + /* Clear HW Timer status. */ + asd_write_reg_byte(asd_ha, LmHWTSTAT(lseq), 0xFF); + + /* Clear DMA Errors for Mode 0 and 1. */ + asd_write_reg_byte(asd_ha, LmMnDMAERRS(lseq, 0), 0xFF); + asd_write_reg_byte(asd_ha, LmMnDMAERRS(lseq, 1), 0xFF); + + /* Clear SG DMA Errors for Mode 0 and 1. */ + asd_write_reg_byte(asd_ha, LmMnSGDMAERRS(lseq, 0), 0xFF); + asd_write_reg_byte(asd_ha, LmMnSGDMAERRS(lseq, 1), 0xFF); + + /* Clear Mode 0 Buffer Parity Error. */ + asd_write_reg_byte(asd_ha, LmMnBUFSTAT(lseq, 0), LmMnBUFPERR); + + /* Clear Mode 0 Frame Error register. */ + asd_write_reg_dword(asd_ha, LmMnFRMERR(lseq, 0), 0xFFFFFFFF); + + /* Reset LSEQ external interrupt arbiter. */ + asd_write_reg_byte(asd_ha, LmARP2INTCTL(lseq), RSTINTCTL); + + /* Set the Phy SAS for the LmSEQ WWN. */ + sas_addr = asd_ha->phys[lseq].phy_desc->sas_addr; + for (i = 0; i < SAS_ADDR_SIZE; i++) + asd_write_reg_byte(asd_ha, LmWWN(lseq) + i, sas_addr[i]); + + /* Set the Transmit Size to 1024 bytes, 0 = 256 Dwords. */ + asd_write_reg_byte(asd_ha, LmMnXMTSIZE(lseq, 1), 0); + + /* Set the Bus Inactivity Time Limit Timer. */ + asd_write_reg_word(asd_ha, LmBITL_TIMER(lseq), 9); + + /* Enable SATA Port Multiplier. */ + asd_write_reg_byte(asd_ha, LmMnSATAFS(lseq, 1), 0x80); + + /* Initialize Interrupt Vector[0-10] address in Mode 3. + * See the comment on CSEQ_INT_* */ + asd_write_reg_word(asd_ha, LmM3INTVEC0(lseq), LSEQ_INT_VEC0); + asd_write_reg_word(asd_ha, LmM3INTVEC1(lseq), LSEQ_INT_VEC1); + asd_write_reg_word(asd_ha, LmM3INTVEC2(lseq), LSEQ_INT_VEC2); + asd_write_reg_word(asd_ha, LmM3INTVEC3(lseq), LSEQ_INT_VEC3); + asd_write_reg_word(asd_ha, LmM3INTVEC4(lseq), LSEQ_INT_VEC4); + asd_write_reg_word(asd_ha, LmM3INTVEC5(lseq), LSEQ_INT_VEC5); + asd_write_reg_word(asd_ha, LmM3INTVEC6(lseq), LSEQ_INT_VEC6); + asd_write_reg_word(asd_ha, LmM3INTVEC7(lseq), LSEQ_INT_VEC7); + asd_write_reg_word(asd_ha, LmM3INTVEC8(lseq), LSEQ_INT_VEC8); + asd_write_reg_word(asd_ha, LmM3INTVEC9(lseq), LSEQ_INT_VEC9); + asd_write_reg_word(asd_ha, LmM3INTVEC10(lseq), LSEQ_INT_VEC10); + /* + * Program the Link LED control, applicable only for + * Chip Rev. B or later. + */ + asd_write_reg_dword(asd_ha, LmCONTROL(lseq), + (LEDTIMER | LEDMODE_TXRX | LEDTIMERS_100ms)); + + /* Set the Align Rate for SAS and STP mode. */ + asd_write_reg_byte(asd_ha, LmM1SASALIGN(lseq), SAS_ALIGN_DEFAULT); + asd_write_reg_byte(asd_ha, LmM1STPALIGN(lseq), STP_ALIGN_DEFAULT); +} + + +/** + * asd_post_init_cseq -- clear CSEQ Mode n Int. status and Response mailbox + * @asd_ha: pointer to host adapter struct + */ +static void asd_post_init_cseq(struct asd_ha_struct *asd_ha) +{ + int i; + + for (i = 0; i < 8; i++) + asd_write_reg_dword(asd_ha, CMnINT(i), 0xFFFFFFFF); + for (i = 0; i < 8; i++) + asd_read_reg_dword(asd_ha, CMnRSPMBX(i)); + /* Reset the external interrupt arbiter. */ + asd_write_reg_byte(asd_ha, CARP2INTCTL, RSTINTCTL); +} + +/** + * asd_init_ddb_0 -- initialize DDB 0 + * @asd_ha: pointer to host adapter structure + * + * Initialize DDB site 0 which is used internally by the sequencer. + */ +static void asd_init_ddb_0(struct asd_ha_struct *asd_ha) +{ + int i; + + /* Zero out the DDB explicitly */ + for (i = 0; i < sizeof(struct asd_ddb_seq_shared); i+=4) + asd_ddbsite_write_dword(asd_ha, 0, i, 0); + + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, q_free_ddb_head), 0); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, q_free_ddb_tail), + asd_ha->hw_prof.max_ddbs-1); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, q_free_ddb_cnt), 0); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, q_used_ddb_head), 0xFFFF); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, q_used_ddb_tail), 0xFFFF); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, shared_mem_lock), 0); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, smp_conn_tag), 0); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, est_nexus_buf_cnt), 0); + asd_ddbsite_write_word(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, est_nexus_buf_thresh), + asd_ha->hw_prof.num_phys * 2); + asd_ddbsite_write_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, settable_max_contexts),0); + asd_ddbsite_write_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, conn_not_active), 0xFF); + asd_ddbsite_write_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, phy_is_up), 0x00); + /* DDB 0 is reserved */ + set_bit(0, asd_ha->hw_prof.ddb_bitmap); +} + +/** + * asd_seq_setup_seqs -- setup and initialize central and link sequencers + * @asd_ha: pointer to host adapter structure + */ +static void asd_seq_setup_seqs(struct asd_ha_struct *asd_ha) +{ + int lseq; + u8 lseq_mask; + + /* Initialize SCB sites. Done first to compute some values which + * the rest of the init code depends on. */ + asd_init_scb_sites(asd_ha); + + /* Initialize CSEQ Scratch RAM registers. */ + asd_init_cseq_scratch(asd_ha); + + /* Initialize LmSEQ Scratch RAM registers. */ + asd_init_lseq_scratch(asd_ha); + + /* Initialize CSEQ CIO registers. */ + asd_init_cseq_cio(asd_ha); + + asd_init_ddb_0(asd_ha); + + /* Initialize LmSEQ CIO registers. */ + lseq_mask = asd_ha->hw_prof.enabled_phys; + for_each_sequencer(lseq_mask, lseq_mask, lseq) + asd_init_lseq_cio(asd_ha, lseq); + asd_post_init_cseq(asd_ha); +} + + +/** + * asd_seq_start_cseq -- start the central sequencer, CSEQ + * @asd_ha: pointer to host adapter structure + */ +static int asd_seq_start_cseq(struct asd_ha_struct *asd_ha) +{ + /* Reset the ARP2 instruction to location zero. */ + asd_write_reg_word(asd_ha, CPRGMCNT, CSEQ_IDLE_LOOP_ENTRY); + + /* Unpause the CSEQ */ + return asd_unpause_cseq(asd_ha); +} + +/** + * asd_seq_start_lseq -- start a link sequencer + * @asd_ha: pointer to host adapter structure + * @lseq: the link sequencer of interest + */ +static int asd_seq_start_lseq(struct asd_ha_struct *asd_ha, int lseq) +{ + /* Reset the ARP2 instruction to location zero. */ + asd_write_reg_word(asd_ha, LmPRGMCNT(lseq), LSEQ_IDLE_LOOP_ENTRY); + + /* Unpause the LmSEQ */ + return asd_seq_unpause_lseq(asd_ha, lseq); +} + +int asd_init_seqs(struct asd_ha_struct *asd_ha) +{ + int err; + + asd_printk("using sequencer %s\n", SAS_RAZOR_SEQUENCER_VERSION); + err = asd_seq_download_seqs(asd_ha); + if (err) { + asd_printk("couldn't download sequencers for %s\n", + pci_name(asd_ha->pcidev)); + return err; + } + + asd_seq_setup_seqs(asd_ha); + + return 0; +} + +int asd_start_seqs(struct asd_ha_struct *asd_ha) +{ + int err; + u8 lseq_mask; + int lseq; + + err = asd_seq_start_cseq(asd_ha); + if (err) { + asd_printk("couldn't start CSEQ for %s\n", + pci_name(asd_ha->pcidev)); + return err; + } + + lseq_mask = asd_ha->hw_prof.enabled_phys; + for_each_sequencer(lseq_mask, lseq_mask, lseq) { + err = asd_seq_start_lseq(asd_ha, lseq); + if (err) { + asd_printk("coudln't start LSEQ %d for %s\n", lseq, + pci_name(asd_ha->pcidev)); + return err; + } + } + + return 0; +} + +/** + * asd_update_port_links -- update port_map_by_links and phy_is_up + * @sas_phy: pointer to the phy which has been added to a port + * + * 1) When a link reset has completed and we got BYTES DMAED with a + * valid frame we call this function for that phy, to indicate that + * the phy is up, i.e. we update the phy_is_up in DDB 0. The + * sequencer checks phy_is_up when pending SCBs are to be sent, and + * when an open address frame has been received. + * + * 2) When we know of ports, we call this function to update the map + * of phys participaing in that port, i.e. we update the + * port_map_by_links in DDB 0. When a HARD_RESET primitive has been + * received, the sequencer disables all phys in that port. + * port_map_by_links is also used as the conn_mask byte in the + * initiator/target port DDB. + */ +void asd_update_port_links(struct sas_phy *sas_phy) +{ + struct asd_ha_struct *asd_ha = sas_phy->ha->lldd_ha; + const u8 phy_mask = (u8) sas_phy->port->phy_mask; + u8 phy_is_up; + u8 mask; + int i, err; + + for_each_phy(phy_mask, mask, i) + asd_ddbsite_write_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, + port_map_by_links)+i,phy_mask); + + for (i = 0; i < 12; i++) { + phy_is_up = asd_ddbsite_read_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, phy_is_up)); + err = asd_ddbsite_update_byte(asd_ha, 0, + offsetof(struct asd_ddb_seq_shared, phy_is_up), + phy_is_up, + phy_is_up | phy_mask); + if (!err) + break; + else if (err == -EFAULT) { + asd_printk("phy_is_up: parity error in DDB 0\n"); + break; + } + } + + if (err) + asd_printk("couldn't update DDB 0:error:%d\n", err); +} - 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/