diff options
Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_seq.c')
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_seq.c | 111 |
1 files changed, 61 insertions, 50 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_seq.c b/drivers/scsi/aic94xx/aic94xx_seq.c index 56e4b3ba6a0..5fdca93892a 100644 --- a/drivers/scsi/aic94xx/aic94xx_seq.c +++ b/drivers/scsi/aic94xx/aic94xx_seq.c @@ -27,6 +27,7 @@ */ #include <linux/delay.h> +#include <linux/gfp.h> #include <linux/pci.h> #include <linux/module.h> #include <linux/firmware.h> @@ -44,10 +45,9 @@ #define PAUSE_TRIES 1000 static const struct firmware *sequencer_fw; -static const char *sequencer_version; static u16 cseq_vecs[CSEQ_NUM_VECS], lseq_vecs[LSEQ_NUM_VECS], mode2_task, cseq_idle_loop, lseq_idle_loop; -static u8 *cseq_code, *lseq_code; +static const u8 *cseq_code, *lseq_code; static u32 cseq_code_size, lseq_code_size; static u16 first_scb_site_no = 0xFFFF; @@ -61,7 +61,7 @@ static u16 last_scb_site_no; * * Return 0 on success, negative on failure. */ -int asd_pause_cseq(struct asd_ha_struct *asd_ha) +static int asd_pause_cseq(struct asd_ha_struct *asd_ha) { int count = PAUSE_TRIES; u32 arp2ctl; @@ -88,7 +88,7 @@ int asd_pause_cseq(struct asd_ha_struct *asd_ha) * * Return 0 on success, negative on error. */ -int asd_unpause_cseq(struct asd_ha_struct *asd_ha) +static int asd_unpause_cseq(struct asd_ha_struct *asd_ha) { u32 arp2ctl; int count = PAUSE_TRIES; @@ -116,7 +116,7 @@ int asd_unpause_cseq(struct asd_ha_struct *asd_ha) * * Return 0 on success, negative on error. */ -static inline int asd_seq_pause_lseq(struct asd_ha_struct *asd_ha, int lseq) +static int asd_seq_pause_lseq(struct asd_ha_struct *asd_ha, int lseq) { u32 arp2ctl; int count = PAUSE_TRIES; @@ -144,7 +144,7 @@ static inline int asd_seq_pause_lseq(struct asd_ha_struct *asd_ha, int lseq) * * Return 0 on success, negative on failure. */ -int asd_pause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask) +static int asd_pause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask) { int lseq; int err = 0; @@ -165,7 +165,7 @@ int asd_pause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask) * * Return 0 on success, negative on error. */ -static inline int asd_seq_unpause_lseq(struct asd_ha_struct *asd_ha, int lseq) +static int asd_seq_unpause_lseq(struct asd_ha_struct *asd_ha, int lseq) { u32 arp2ctl; int count = PAUSE_TRIES; @@ -187,27 +187,6 @@ static inline int asd_seq_unpause_lseq(struct asd_ha_struct *asd_ha, int lseq) } -/** - * 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, @@ -609,7 +588,7 @@ static void asd_init_cseq_mdp(struct asd_ha_struct *asd_ha) * asd_init_cseq_scratch -- setup and init CSEQ * @asd_ha: pointer to host adapter structure * - * Setup and initialize Central sequencers. Initialiaze the mode + * 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) @@ -803,20 +782,22 @@ static void asd_init_lseq_mdp(struct asd_ha_struct *asd_ha, int lseq) 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. + * (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 intialized to 0. */ + /* 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); } @@ -907,6 +888,16 @@ static void asd_init_scb_sites(struct asd_ha_struct *asd_ha) 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)) @@ -922,16 +913,6 @@ static void asd_init_scb_sites(struct asd_ha_struct *asd_ha) /* 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++; } @@ -957,7 +938,7 @@ static void asd_init_cseq_cio(struct asd_ha_struct *asd_ha) asd_write_reg_dword(asd_ha, SCBPRO, 0); asd_write_reg_dword(asd_ha, CSEQCON, 0); - /* Intialize CSEQ Mode 11 Interrupt Vectors. + /* 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. */ @@ -980,7 +961,7 @@ static void asd_init_cseq_cio(struct asd_ha_struct *asd_ha) asd_write_reg_word(asd_ha, CPRGMCNT, cseq_idle_loop); for (i = 0; i < 8; i++) { - /* Intialize Mode n Link m Interrupt Enable. */ + /* 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); @@ -1173,6 +1154,16 @@ static void asd_init_ddb_0(struct asd_ha_struct *asd_ha) 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 @@ -1182,6 +1173,9 @@ 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); @@ -1232,10 +1226,17 @@ static int asd_seq_start_lseq(struct asd_ha_struct *asd_ha, int lseq) 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, *hdr_ptr; + struct sequencer_file_header header; + const struct sequencer_file_header *hdr_ptr; u32 csum = 0; u16 *ptr_cseq_vecs, *ptr_lseq_vecs; @@ -1249,12 +1250,11 @@ static int asd_request_firmware(struct asd_ha_struct *asd_ha) if (err) return err; - hdr_ptr = (struct sequencer_file_header *)sequencer_fw->data; + 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); - sequencer_version = hdr_ptr->version; 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); @@ -1281,6 +1281,16 @@ static int asd_request_firmware(struct asd_ha_struct *asd_ha) 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; @@ -1313,7 +1323,6 @@ int asd_init_seqs(struct asd_ha_struct *asd_ha) return err; } - asd_printk("using sequencer %s\n", sequencer_version); err = asd_seq_download_seqs(asd_ha); if (err) { asd_printk("couldn't download sequencers for %s\n", @@ -1369,14 +1378,15 @@ int asd_start_seqs(struct asd_ha_struct *asd_ha) * 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_sas_phy *sas_phy) +void asd_update_port_links(struct asd_ha_struct *asd_ha, struct asd_phy *phy) { - struct asd_ha_struct *asd_ha = sas_phy->ha->lldd_ha; - const u8 phy_mask = (u8) sas_phy->port->phy_mask; + 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, @@ -1396,6 +1406,7 @@ void asd_update_port_links(struct asd_sas_phy *sas_phy) break; } } + spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags); if (err) asd_printk("couldn't update DDB 0:error:%d\n", err); |