diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-03-05 21:04:03 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-13 02:55:23 +0100 |
| commit | 205e8240a1b42d32c08b0fae5778cbaa336c9c7f (patch) | |
| tree | 670110d6ff9af2ff4c590faaad64e81a46d2321a /drivers/scsi/lpfc/lpfc_nvme.c | |
| parent | scsi: lpfc: Fix NVME Initiator FirstBurst (diff) | |
| download | linux-205e8240a1b42d32c08b0fae5778cbaa336c9c7f.tar.xz linux-205e8240a1b42d32c08b0fae5778cbaa336c9c7f.zip | |
scsi: lpfc: Code cleanup for 128byte wqe data type
The driver is very sloppy about the WQE structure passed between routines.
The base struct type is a 64byte wqe. But in many routines they typecast and
access 128byte wqes. There were a couple of cases in the past (corrected
already) where the typecasts were incorrectly done and the 64byte buffer was
accessed as a 128 byte buffer.
Clean this up by properly declaring wqe's as 128byte wqe's and removing the
typecasts. 64byte wqes are considered a subset of the 128byte wqes.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nvme.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nvme.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 6ea6cc372647..6d215f27448f 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -275,14 +275,14 @@ lpfc_nvme_cmpl_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, static int lpfc_nvme_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp, struct lpfc_dmabuf *inp, - struct nvmefc_ls_req *pnvme_lsreq, - void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, - struct lpfc_wcqe_complete *), - struct lpfc_nodelist *ndlp, uint32_t num_entry, - uint32_t tmo, uint8_t retry) + struct nvmefc_ls_req *pnvme_lsreq, + void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, + struct lpfc_wcqe_complete *), + struct lpfc_nodelist *ndlp, uint32_t num_entry, + uint32_t tmo, uint8_t retry) { - struct lpfc_hba *phba = vport->phba; - union lpfc_wqe *wqe; + struct lpfc_hba *phba = vport->phba; + union lpfc_wqe128 *wqe; struct lpfc_iocbq *genwqe; struct ulp_bde64 *bpl; struct ulp_bde64 bde; @@ -628,8 +628,7 @@ lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport, * the dma address. */ - /* 128 byte wqe support here */ - wqe = (union lpfc_wqe128 *)&lpfc_ncmd->cur_iocbq.wqe; + wqe = &lpfc_ncmd->cur_iocbq.wqe; /* * Adjust the FCP_CMD and FCP_RSP DMA data and sge_len to @@ -1048,7 +1047,7 @@ lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, struct lpfc_hba *phba = vport->phba; struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; struct lpfc_iocbq *pwqeq = &(lpfc_ncmd->cur_iocbq); - union lpfc_wqe128 *wqe = (union lpfc_wqe128 *)&pwqeq->wqe; + union lpfc_wqe128 *wqe = &pwqeq->wqe; uint32_t req_len; if (!pnode || !NLP_CHK_NODE_ACT(pnode)) @@ -1187,7 +1186,7 @@ lpfc_nvme_prep_io_dma(struct lpfc_vport *vport, { struct lpfc_hba *phba = vport->phba; struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; - union lpfc_wqe128 *wqe = (union lpfc_wqe128 *)&lpfc_ncmd->cur_iocbq.wqe; + union lpfc_wqe128 *wqe = &lpfc_ncmd->cur_iocbq.wqe; struct sli4_sge *sgl = lpfc_ncmd->nvme_sgl; struct scatterlist *data_sg; struct sli4_sge *first_data_sgl; @@ -1595,7 +1594,7 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport, struct lpfc_iocbq *abts_buf; struct lpfc_iocbq *nvmereq_wqe; struct lpfc_nvme_fcpreq_priv *freqpriv; - union lpfc_wqe *abts_wqe; + union lpfc_wqe128 *abts_wqe; unsigned long flags; int ret_val; @@ -2139,7 +2138,7 @@ lpfc_new_nvme_buf(struct lpfc_vport *vport, int num_to_alloc) break; } pwqeq = &(lpfc_ncmd->cur_iocbq); - wqe = (union lpfc_wqe128 *)&pwqeq->wqe; + wqe = &pwqeq->wqe; /* Allocate iotag for lpfc_ncmd->cur_iocbq. */ iotag = lpfc_sli_next_iotag(phba, pwqeq); |