diff options
| author | Yuval Mintz <Yuval.Mintz@qlogic.com> | 2016-05-11 16:36:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-12 07:04:07 +0300 |
| commit | 37bff2b9c6addf6216c8d04e95be596678e8deff (patch) | |
| tree | 1d2488426fee5eab5a30fc4683e359c6e9f2c07b /drivers/net/ethernet/qlogic/qed/qed_main.c | |
| parent | 32a47e72c9eb17e3b1bb507184e788b10d69ad4b (diff) | |
| download | linux-37bff2b9c6addf6216c8d04e95be596678e8deff.tar.xz | |
qed: Add VF->PF channel infrastructure
Communication between VF and PF is based on a dedicated HW channel;
VF will prepare a messge, and by signaling the HW the PF would get a
notification of that message existance. The PF would then copy the
message, process it and DMA an answer back to the VF as a response.
The messages themselves are TLV-based - allowing easier backward/forward
compatibility.
This patch adds the infrastructure of the channel on the PF side -
starting with the arrival of the notification and ending with DMAing
the response back to the VF.
It also adds a dummy-response as reference, as it only lays the
groundwork of the communication; it doesn't really add support of any
actual messages.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_main.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c index 1b758bdec587..c209ed49deae 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -24,6 +24,7 @@ #include <linux/qed/qed_if.h> #include "qed.h" +#include "qed_sriov.h" #include "qed_sp.h" #include "qed_dev_api.h" #include "qed_mcp.h" @@ -749,7 +750,10 @@ static int qed_slowpath_start(struct qed_dev *cdev, struct qed_mcp_drv_version drv_version; const u8 *data = NULL; struct qed_hwfn *hwfn; - int rc; + int rc = -EINVAL; + + if (qed_iov_wq_start(cdev)) + goto err; rc = request_firmware(&cdev->firmware, QED_FW_FILE_NAME, &cdev->pdev->dev); @@ -826,6 +830,8 @@ err1: err: release_firmware(cdev->firmware); + qed_iov_wq_stop(cdev, false); + return rc; } @@ -842,6 +848,8 @@ static int qed_slowpath_stop(struct qed_dev *cdev) qed_disable_msix(cdev); qed_nic_reset(cdev); + qed_iov_wq_stop(cdev, true); + release_firmware(cdev->firmware); return 0; |