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linux/drivers/scsi/aic94xx/aic94xx_seq.c
Thomas Gleixner 65c85c8378 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 411 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 19 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190112.766909183@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:14 +02:00

1398 lines
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Aic94xx SAS/SATA driver sequencer interface.
*
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
*
* Parts of this code adapted from David Chaw's adp94xx_seq.c.
*/
#include <linux/delay.h>
#include <linux/gfp.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include "aic94xx_reg.h"
#include "aic94xx_hwi.h"
#include "aic94xx_seq.h"
#include "aic94xx_dump.h"
/* 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 const struct firmware *sequencer_fw;
static u16 cseq_vecs[CSEQ_NUM_VECS], lseq_vecs[LSEQ_NUM_VECS], mode2_task,
cseq_idle_loop, lseq_idle_loop;
static const u8 *cseq_code, *lseq_code;
static u32 cseq_code_size, lseq_code_size;
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.
*/
static 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.
*/
static 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 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.
*/
static 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 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;
}
/* ---------- 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 (le32_to_cpu(*prog) != val) {
asd_printk("%s: cseq verify failed at %u "
"read:0x%x, wanted:0x%x\n",
pci_name(asd_ha->pcidev),
i, val, le32_to_cpu(*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 (le32_to_cpu(*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_code, cseq_code_size, 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_code, lseq_code_size,
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_code,
lseq_code_size, 1<<lseq);
if (err)
break;
}
}
if (err)
asd_printk("LSEQs download failed:%d\n", err);
return err;
}
/* ---------- Initializing the chip, chip memory, etc. ---------- */
/**
* asd_init_cseq_mip - initialize CSEQ mode independent pages 4-7
* @asd_ha: pointer to host adapter structure
*/
static void asd_init_cseq_mip(struct asd_ha_struct *asd_ha)
{
/* CSEQ Mode Independent, page 4 setup. */
asd_write_reg_word(asd_ha, CSEQ_Q_EXE_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_EXE_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_DONE_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_DONE_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_SEND_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_SEND_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_DMA2CHIM_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_DMA2CHIM_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_COPY_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_COPY_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_REG0, 0);
asd_write_reg_word(asd_ha, CSEQ_REG1, 0);
asd_write_reg_dword(asd_ha, CSEQ_REG2, 0);
asd_write_reg_byte(asd_ha, CSEQ_LINK_CTL_Q_MAP, 0);
{
u8 con = asd_read_reg_byte(asd_ha, CCONEXIST);
u8 val = hweight8(con);
asd_write_reg_byte(asd_ha, CSEQ_MAX_CSEQ_MODE, (val<<4)|val);
}
asd_write_reg_word(asd_ha, CSEQ_FREE_LIST_HACK_COUNT, 0);
/* CSEQ Mode independent, page 5 setup. */
asd_write_reg_dword(asd_ha, CSEQ_EST_NEXUS_REQ_QUEUE, 0);
asd_write_reg_dword(asd_ha, CSEQ_EST_NEXUS_REQ_QUEUE+4, 0);
asd_write_reg_dword(asd_ha, CSEQ_EST_NEXUS_REQ_COUNT, 0);
asd_write_reg_dword(asd_ha, CSEQ_EST_NEXUS_REQ_COUNT+4, 0);
asd_write_reg_word(asd_ha, CSEQ_Q_EST_NEXUS_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_EST_NEXUS_TAIL, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_NEED_EST_NEXUS_SCB, 0);
asd_write_reg_byte(asd_ha, CSEQ_EST_NEXUS_REQ_HEAD, 0);
asd_write_reg_byte(asd_ha, CSEQ_EST_NEXUS_REQ_TAIL, 0);
asd_write_reg_byte(asd_ha, CSEQ_EST_NEXUS_SCB_OFFSET, 0);
/* CSEQ Mode independent, page 6 setup. */
asd_write_reg_word(asd_ha, CSEQ_INT_ROUT_RET_ADDR0, 0);
asd_write_reg_word(asd_ha, CSEQ_INT_ROUT_RET_ADDR1, 0);
asd_write_reg_word(asd_ha, CSEQ_INT_ROUT_SCBPTR, 0);
asd_write_reg_byte(asd_ha, CSEQ_INT_ROUT_MODE, 0);
asd_write_reg_byte(asd_ha, CSEQ_ISR_SCRATCH_FLAGS, 0);
asd_write_reg_word(asd_ha, CSEQ_ISR_SAVE_SINDEX, 0);
asd_write_reg_word(asd_ha, CSEQ_ISR_SAVE_DINDEX, 0);
asd_write_reg_word(asd_ha, CSEQ_Q_MONIRTT_HEAD, 0xFFFF);
asd_write_reg_word(asd_ha, CSEQ_Q_MONIRTT_TAIL, 0xFFFF);
/* Calculate the free scb mask. */
{
u16 cmdctx = asd_get_cmdctx_size(asd_ha);
cmdctx = (~((cmdctx/128)-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%llx\n",
(unsigned long long)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. Initialize 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;
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_word(asd_ha, LmSEQ_INTEN_SAVE(lseq),
(u16) ((LmM0INTEN_MASK & 0xFFFF0000) >> 16));
asd_write_reg_word(asd_ha, LmSEQ_INTEN_SAVE(lseq) + 2,
(u16) LmM0INTEN_MASK & 0xFFFF);
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 initialized 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);
asd_write_reg_word(asd_ha, LmSEQ_NOTIFY_TIMER_INITIAL_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 initialized 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);
/* 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);
/* 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);
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);
/* Initialize 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_vecs[0]);
asd_write_reg_word(asd_ha, CM11INTVEC1, cseq_vecs[1]);
asd_write_reg_word(asd_ha, CM11INTVEC2, cseq_vecs[2]);
/* 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);
for (i = 0; i < 8; i++) {
/* Initialize 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);
/* 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_vecs[0]);
asd_write_reg_word(asd_ha, LmM3INTVEC1(lseq), lseq_vecs[1]);
asd_write_reg_word(asd_ha, LmM3INTVEC2(lseq), lseq_vecs[2]);
asd_write_reg_word(asd_ha, LmM3INTVEC3(lseq), lseq_vecs[3]);
asd_write_reg_word(asd_ha, LmM3INTVEC4(lseq), lseq_vecs[4]);
asd_write_reg_word(asd_ha, LmM3INTVEC5(lseq), lseq_vecs[5]);
asd_write_reg_word(asd_ha, LmM3INTVEC6(lseq), lseq_vecs[6]);
asd_write_reg_word(asd_ha, LmM3INTVEC7(lseq), lseq_vecs[7]);
asd_write_reg_word(asd_ha, LmM3INTVEC8(lseq), lseq_vecs[8]);
asd_write_reg_word(asd_ha, LmM3INTVEC9(lseq), lseq_vecs[9]);
asd_write_reg_word(asd_ha, LmM3INTVEC10(lseq), lseq_vecs[10]);
/*
* 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);
}
static void asd_seq_init_ddb_sites(struct asd_ha_struct *asd_ha)
{
unsigned int i;
unsigned int ddb_site;
for (ddb_site = 0 ; ddb_site < ASD_MAX_DDBS; ddb_site++)
for (i = 0; i < sizeof(struct asd_ddb_ssp_smp_target_port); i+= 4)
asd_ddbsite_write_dword(asd_ha, ddb_site, i, 0);
}
/**
* 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 DDB sites */
asd_seq_init_ddb_sites(asd_ha);
/* 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);
/* 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);
/* Unpause the LmSEQ */
return asd_seq_unpause_lseq(asd_ha, lseq);
}
int asd_release_firmware(void)
{
release_firmware(sequencer_fw);
return 0;
}
static int asd_request_firmware(struct asd_ha_struct *asd_ha)
{
int err, i;
struct sequencer_file_header header;
const struct sequencer_file_header *hdr_ptr;
u32 csum = 0;
u16 *ptr_cseq_vecs, *ptr_lseq_vecs;
if (sequencer_fw)
/* already loaded */
return 0;
err = request_firmware(&sequencer_fw,
SAS_RAZOR_SEQUENCER_FW_FILE,
&asd_ha->pcidev->dev);
if (err)
return err;
hdr_ptr = (const struct sequencer_file_header *)sequencer_fw->data;
header.csum = le32_to_cpu(hdr_ptr->csum);
header.major = le32_to_cpu(hdr_ptr->major);
header.minor = le32_to_cpu(hdr_ptr->minor);
header.cseq_table_offset = le32_to_cpu(hdr_ptr->cseq_table_offset);
header.cseq_table_size = le32_to_cpu(hdr_ptr->cseq_table_size);
header.lseq_table_offset = le32_to_cpu(hdr_ptr->lseq_table_offset);
header.lseq_table_size = le32_to_cpu(hdr_ptr->lseq_table_size);
header.cseq_code_offset = le32_to_cpu(hdr_ptr->cseq_code_offset);
header.cseq_code_size = le32_to_cpu(hdr_ptr->cseq_code_size);
header.lseq_code_offset = le32_to_cpu(hdr_ptr->lseq_code_offset);
header.lseq_code_size = le32_to_cpu(hdr_ptr->lseq_code_size);
header.mode2_task = le16_to_cpu(hdr_ptr->mode2_task);
header.cseq_idle_loop = le16_to_cpu(hdr_ptr->cseq_idle_loop);
header.lseq_idle_loop = le16_to_cpu(hdr_ptr->lseq_idle_loop);
for (i = sizeof(header.csum); i < sequencer_fw->size; i++)
csum += sequencer_fw->data[i];
if (csum != header.csum) {
asd_printk("Firmware file checksum mismatch\n");
return -EINVAL;
}
if (header.cseq_table_size != CSEQ_NUM_VECS ||
header.lseq_table_size != LSEQ_NUM_VECS) {
asd_printk("Firmware file table size mismatch\n");
return -EINVAL;
}
asd_printk("Found sequencer Firmware version %d.%d (%s)\n",
header.major, header.minor, hdr_ptr->version);
if (header.major != SAS_RAZOR_SEQUENCER_FW_MAJOR) {
asd_printk("Firmware Major Version Mismatch;"
"driver requires version %d.X",
SAS_RAZOR_SEQUENCER_FW_MAJOR);
return -EINVAL;
}
ptr_cseq_vecs = (u16 *)&sequencer_fw->data[header.cseq_table_offset];
ptr_lseq_vecs = (u16 *)&sequencer_fw->data[header.lseq_table_offset];
mode2_task = header.mode2_task;
cseq_idle_loop = header.cseq_idle_loop;
lseq_idle_loop = header.lseq_idle_loop;
for (i = 0; i < CSEQ_NUM_VECS; i++)
cseq_vecs[i] = le16_to_cpu(ptr_cseq_vecs[i]);
for (i = 0; i < LSEQ_NUM_VECS; i++)
lseq_vecs[i] = le16_to_cpu(ptr_lseq_vecs[i]);
cseq_code = &sequencer_fw->data[header.cseq_code_offset];
cseq_code_size = header.cseq_code_size;
lseq_code = &sequencer_fw->data[header.lseq_code_offset];
lseq_code_size = header.lseq_code_size;
return 0;
}
int asd_init_seqs(struct asd_ha_struct *asd_ha)
{
int err;
err = asd_request_firmware(asd_ha);
if (err) {
asd_printk("Failed to load sequencer firmware file %s, error %d\n",
SAS_RAZOR_SEQUENCER_FW_FILE, err);
return err;
}
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("couldn'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 asd_ha_struct *asd_ha, struct asd_phy *phy)
{
const u8 phy_mask = (u8) phy->asd_port->phy_mask;
u8 phy_is_up;
u8 mask;
int i, err;
unsigned long flags;
spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
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;
}
}
spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
if (err)
asd_printk("couldn't update DDB 0:error:%d\n", err);
}
MODULE_FIRMWARE(SAS_RAZOR_SEQUENCER_FW_FILE);
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