diff options
| author |   Nilesh Javali <nilesh.javali@cavium.com> | 2018-11-21 01:25:21 -0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-11-28 20:51:47 -0500 |
| commit | dcceeeb71fb7f927e609175dfd76bcdf0f44abc2 (patch) | |
| tree | 4a070f0019ac74bc11c9696d1eb21b27e212d4d0 | |
| parent | scsi: qedi: Add packet filter in light L2 Rx path. (diff) | |
| download | linux-dev-dcceeeb71fb7f927e609175dfd76bcdf0f44abc2.tar.xz linux-dev-dcceeeb71fb7f927e609175dfd76bcdf0f44abc2.zip | |
scsi: qedi: add module param to set ping packet size
Default packet size is 0x400. For jumbo packets set to 0x2400.
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/qedi/qedi.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/qedi/qedi_main.c | 13 |
2 files changed, 9 insertions, 5 deletions
diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h index 6fa02c553fd3..a26bb5066b90 100644 --- a/drivers/scsi/qedi/qedi.h +++ b/drivers/scsi/qedi/qedi.h @@ -63,7 +63,6 @@ struct qedi_endpoint; #define QEDI_LOCAL_PORT_INVALID 0xffff #define TX_RX_RING 16 #define RX_RING (TX_RX_RING - 1) -#define LL2_SINGLE_BUF_SIZE 0x400 #define QEDI_PAGE_ALIGN(addr) ALIGN(addr, QEDI_PAGE_SIZE) #define QEDI_PAGE_MASK (~((QEDI_PAGE_SIZE) - 1)) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 2621deeed0cd..8942f62d66d7 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -44,6 +44,11 @@ module_param(qedi_io_tracing, uint, 0644); MODULE_PARM_DESC(qedi_io_tracing, " Enable logging of SCSI requests/completions into trace buffer. (default off)."); +uint qedi_ll2_buf_size = 0x400; +module_param(qedi_ll2_buf_size, uint, 0644); +MODULE_PARM_DESC(qedi_ll2_buf_size, + "parameter to set ping packet size, default - 0x400, Jumbo packets - 0x2400."); + const struct qed_iscsi_ops *qedi_ops; static struct scsi_transport_template *qedi_scsi_transport; static struct pci_driver qedi_pci_driver; @@ -228,7 +233,7 @@ static int __qedi_alloc_uio_rings(struct qedi_uio_dev *udev) } /* Allocating memory for Tx/Rx pkt buffer */ - udev->ll2_buf_size = TX_RX_RING * LL2_SINGLE_BUF_SIZE; + udev->ll2_buf_size = TX_RX_RING * qedi_ll2_buf_size; udev->ll2_buf_size = QEDI_PAGE_ALIGN(udev->ll2_buf_size); udev->ll2_buf = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP | __GFP_ZERO, 2); @@ -283,7 +288,7 @@ static int qedi_alloc_uio_rings(struct qedi_ctx *qedi) qedi->udev = udev; udev->tx_pkt = udev->ll2_buf; - udev->rx_pkt = udev->ll2_buf + LL2_SINGLE_BUF_SIZE; + udev->rx_pkt = udev->ll2_buf + qedi_ll2_buf_size; return 0; err_uctrl: @@ -752,8 +757,8 @@ static int qedi_ll2_process_skb(struct qedi_ctx *qedi, struct sk_buff *skb, udev = qedi->udev; uctrl = udev->uctrl; - pkt = udev->rx_pkt + (uctrl->hw_rx_prod * LL2_SINGLE_BUF_SIZE); - len = min_t(u32, skb->len, (u32)LL2_SINGLE_BUF_SIZE); + pkt = udev->rx_pkt + (uctrl->hw_rx_prod * qedi_ll2_buf_size); + len = min_t(u32, skb->len, (u32)qedi_ll2_buf_size); memcpy(pkt, skb->data, len); memset(&rxbd, 0, sizeof(rxbd)); |