| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Bottomley | 6963 | 97.33% | 3 | 17.65% |
| Darrick J. Wong | 140 | 1.96% | 3 | 17.65% |
| Gilbert Wu | 12 | 0.17% | 1 | 5.88% |
| Malahal Naineni | 9 | 0.13% | 1 | 5.88% |
| Al Viro | 6 | 0.08% | 1 | 5.88% |
| David Woodhouse | 6 | 0.08% | 1 | 5.88% |
| Uwe Kleine-König | 5 | 0.07% | 2 | 11.76% |
| Lee Jones | 4 | 0.06% | 1 | 5.88% |
| Adrian Bunk | 3 | 0.04% | 1 | 5.88% |
| Tejun Heo | 3 | 0.04% | 1 | 5.88% |
| Thomas Gleixner | 2 | 0.03% | 1 | 5.88% |
| Masanari Iida | 1 | 0.01% | 1 | 5.88% |
| Total | 7154 | 17 |
// 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 * @lseq: link sequencer */ 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 * @lseq: link sequencer */ 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 * @lseq: link sequencer */ 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 * @asd_ha: pointer to host adapter structure * @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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