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https://github.com/FEX-Emu/linux.git
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[SCSI] lpfc 8.2.3 : Internal loopback fixes
Internal loopback fixes: - Use HBQs rather than Q_RING_BUFF - Correct HBQs continuation entries - Update CT handler to SLI3 iocbs Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart
James Bottomley
parent
a8adb83208
commit
76bb24efdc
@ -68,6 +68,7 @@ struct lpfc_dmabuf {
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struct list_head list;
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void *virt; /* virtual address ptr */
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dma_addr_t phys; /* mapped address */
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uint32_t buffer_tag; /* used for tagged queue ring */
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};
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struct lpfc_dma_pool {
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@ -582,6 +583,12 @@ struct lpfc_hba {
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unsigned long last_completion_time;
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struct timer_list hb_tmofunc;
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uint8_t hb_outstanding;
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/*
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* Following bit will be set for all buffer tags which are not
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* associated with any HBQ.
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*/
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#define QUE_BUFTAG_BIT (1<<31)
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uint32_t buffer_tag_count;
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};
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static inline struct Scsi_Host *
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@ -211,6 +211,11 @@ int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *,
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struct lpfc_dmabuf *lpfc_sli_ringpostbuf_get(struct lpfc_hba *,
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struct lpfc_sli_ring *,
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dma_addr_t);
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uint32_t lpfc_sli_get_buffer_tag(struct lpfc_hba *);
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struct lpfc_dmabuf * lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *,
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struct lpfc_sli_ring *, uint32_t );
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int lpfc_sli_hbq_count(void);
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int lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *, uint32_t);
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int lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *, uint32_t);
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@ -1373,6 +1373,7 @@ typedef struct { /* FireFly BIU registers */
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#define CMD_FCP_TRECEIVE64_CX 0xA1
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#define CMD_FCP_TRSP64_CX 0xA3
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#define CMD_QUE_XRI64_CX 0xB3
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#define CMD_IOCB_RCV_SEQ64_CX 0xB5
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#define CMD_IOCB_RCV_ELS64_CX 0xB7
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#define CMD_IOCB_RCV_CONT64_CX 0xBB
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@ -3039,7 +3040,26 @@ struct rcv_sli3 {
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struct ulp_bde64 bde2;
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};
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/* Structure used for a single HBQ entry */
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struct lpfc_hbq_entry {
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struct ulp_bde64 bde;
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uint32_t buffer_tag;
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};
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/* IOCB Command template for QUE_XRI64_CX (0xB3) command */
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typedef struct {
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struct lpfc_hbq_entry buff;
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uint32_t rsvd;
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uint32_t rsvd1;
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} QUE_XRI64_CX_FIELDS;
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struct que_xri64cx_ext_fields {
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uint32_t iotag64_low;
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uint32_t iotag64_high;
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uint32_t ebde_count;
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uint32_t rsvd;
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struct lpfc_hbq_entry buff[5];
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};
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typedef struct _IOCB { /* IOCB structure */
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union {
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@ -3064,6 +3084,7 @@ typedef struct _IOCB { /* IOCB structure */
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FCPI_FIELDS64 fcpi64; /* FCP 64 bit Initiator template */
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FCPT_FIELDS64 fcpt64; /* FCP 64 bit target template */
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ASYNCSTAT_FIELDS asyncstat; /* async_status iocb */
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QUE_XRI64_CX_FIELDS quexri64cx; /* que_xri64_cx fields */
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uint32_t ulpWord[IOCB_WORD_SZ - 2]; /* generic 6 'words' */
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} un;
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@ -3121,6 +3142,10 @@ typedef struct _IOCB { /* IOCB structure */
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union {
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struct rcv_sli3 rcvsli3; /* words 8 - 15 */
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/* words 8-31 used for que_xri_cx iocb */
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struct que_xri64cx_ext_fields que_xri64cx_ext_words;
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uint32_t sli3Words[24]; /* 96 extra bytes for SLI-3 */
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} unsli3;
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@ -3160,12 +3185,6 @@ typedef struct _IOCB { /* IOCB structure */
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} IOCB_t;
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/* Structure used for a single HBQ entry */
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struct lpfc_hbq_entry {
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struct ulp_bde64 bde;
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uint32_t buffer_tag;
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};
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#define SLI1_SLIM_SIZE (4 * 1024)
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@ -931,6 +931,16 @@ lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
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return &new_hbq_entry->dbuf;
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}
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static struct lpfc_dmabuf *
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lpfc_sli_get_buff(struct lpfc_hba *phba,
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struct lpfc_sli_ring *pring,
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uint32_t tag)
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{
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if (tag & QUE_BUFTAG_BIT)
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return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
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else
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return lpfc_sli_replace_hbqbuff(phba, tag);
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}
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static int
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lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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@ -940,6 +950,7 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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WORD5 * w5p;
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uint32_t Rctl, Type;
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uint32_t match, i;
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struct lpfc_iocbq *iocbq;
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match = 0;
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irsp = &(saveq->iocb);
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@ -984,12 +995,69 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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}
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if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
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if (irsp->ulpBdeCount != 0)
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saveq->context2 = lpfc_sli_replace_hbqbuff(phba,
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struct lpfc_hbq_entry *hbqe_1, *hbqe_2;
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hbqe_1 = (struct lpfc_hbq_entry *) &saveq->iocb.un.ulpWord[0];
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hbqe_2 = (struct lpfc_hbq_entry *) &saveq->iocb.
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unsli3.sli3Words[4];
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if (irsp->ulpBdeCount != 0) {
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saveq->context2 = lpfc_sli_get_buff(phba, pring,
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irsp->un.ulpWord[3]);
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if (irsp->ulpBdeCount == 2)
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saveq->context3 = lpfc_sli_replace_hbqbuff(phba,
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if (!saveq->context2)
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"0341 Ring %d Cannot find buffer for "
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"an unsolicited iocb. tag 0x%x\n",
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pring->ringno,
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irsp->un.ulpWord[3]);
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}
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if (irsp->ulpBdeCount == 2) {
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saveq->context3 = lpfc_sli_get_buff(phba, pring,
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irsp->unsli3.sli3Words[7]);
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if (!saveq->context3)
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"0342 Ring %d Cannot find buffer for an"
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" unsolicited iocb. tag 0x%x\n",
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pring->ringno,
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irsp->unsli3.sli3Words[7]);
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}
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list_for_each_entry(iocbq, &saveq->list, list) {
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hbqe_1 = (struct lpfc_hbq_entry *) &iocbq->iocb.
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un.ulpWord[0];
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hbqe_2 = (struct lpfc_hbq_entry *) &iocbq->iocb.
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unsli3.sli3Words[4];
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irsp = &(iocbq->iocb);
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if (irsp->ulpBdeCount != 0) {
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iocbq->context2 = lpfc_sli_get_buff(phba, pring,
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irsp->un.ulpWord[3]);
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if (!saveq->context2)
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"0343 Ring %d Cannot find "
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"buffer for an unsolicited iocb"
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". tag 0x%x\n", pring->ringno,
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irsp->un.ulpWord[3]);
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}
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if (irsp->ulpBdeCount == 2) {
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iocbq->context3 = lpfc_sli_get_buff(phba, pring,
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irsp->unsli3.sli3Words[7]);
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if (!saveq->context3)
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"0344 Ring %d Cannot find "
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"buffer for an unsolicited "
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"iocb. tag 0x%x\n",
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pring->ringno,
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irsp->unsli3.sli3Words[7]);
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}
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}
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}
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/* unSolicited Responses */
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@ -2480,7 +2548,7 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
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lpfc_sli_abort_iocb_ring(phba, pring);
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lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
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"0316 Resetting board due to mailbox timeout\n");
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"0345 Resetting board due to mailbox timeout\n");
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/*
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* lpfc_offline calls lpfc_sli_hba_down which will clean up
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* on oustanding mailbox commands.
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@ -2975,7 +3043,7 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba,
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"0327 Ring %d handler: unexpected ASYNC_STATUS"
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"0346 Ring %d handler: unexpected ASYNC_STATUS"
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" evt_code 0x%x\n",
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pring->ringno,
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icmd->un.asyncstat.evt_code);
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@ -2988,7 +3056,7 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba,
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lpfc_printf_log(phba,
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KERN_WARNING,
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LOG_TEMP,
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"0339 Adapter is very hot, please take "
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"0347 Adapter is very hot, please take "
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"corrective action. temperature : %d Celsius\n",
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temp);
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}
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@ -3314,6 +3382,47 @@ lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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return 0;
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}
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uint32_t
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lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
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{
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spin_lock_irq(&phba->hbalock);
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phba->buffer_tag_count++;
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/*
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* Always set the QUE_BUFTAG_BIT to distiguish between
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* a tag assigned by HBQ.
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*/
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phba->buffer_tag_count |= QUE_BUFTAG_BIT;
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spin_unlock_irq(&phba->hbalock);
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return phba->buffer_tag_count;
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}
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struct lpfc_dmabuf *
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lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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uint32_t tag)
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{
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struct lpfc_dmabuf *mp, *next_mp;
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struct list_head *slp = &pring->postbufq;
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/* Search postbufq, from the begining, looking for a match on tag */
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spin_lock_irq(&phba->hbalock);
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list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
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if (mp->buffer_tag == tag) {
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list_del_init(&mp->list);
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pring->postbufq_cnt--;
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spin_unlock_irq(&phba->hbalock);
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return mp;
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}
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}
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spin_unlock_irq(&phba->hbalock);
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lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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"0410 Cannot find virtual addr for buffer tag on "
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"ring %d Data x%lx x%p x%p x%x\n",
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pring->ringno, (unsigned long) tag,
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slp->next, slp->prev, pring->postbufq_cnt);
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return NULL;
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}
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struct lpfc_dmabuf *
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lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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